mozilla.org

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Free website and domain report on mozilla.org

Last Updated: 18th June, 2023 Update Now
Overview

Snoop Summary for mozilla.org

This is a free and comprehensive report about mozilla.org. The domain mozilla.org is currently hosted on a server located in United States with the IP address 44.235.246.155, where the local currency is USD and English is the local language. Our records indicate that mozilla.org is privately registered by Mozilla Corporation. Mozilla.org is expected to earn an estimated $106,154 USD per day from advertising revenue. The sale of mozilla.org would possibly be worth $77,492,444 USD. This figure is based on the daily revenue potential of the website over a 24 month period. Mozilla.org is unbelievably popular with an estimated 11,401,085 daily unique visitors. This report was last updated 18th June, 2023.

About mozilla.org

Site Preview: mozilla.org mozilla.org
Title: Mozilla
Description: Official website with information and downloads.
Keywords and Tags: adblock firefox, array, computers, dom, firefox, firefox download, firefox for mac, hardware, html, internet, mozilla, mozilla firefox, mozilla foundation, null, open source, organizations, picture, popular, programming, promise, script, software, w3c dom, world wide web, youtube com activate
Related Terms: mozilla 20.0, mozilla firefox extension
Fav Icon:
Age: Over 26 years old
Domain Created: 24th January, 1998
Domain Updated: 27th December, 2022
Domain Expires: 23rd January, 2025
Review

Snoop Score

5/5 (Perfect!)

Valuation

$77,492,444 USD
Note: All valuation figures are estimates.

Popularity

Worldwide Sensation
Note: Popularity is estimated.

Rank, Reach and Authority

Alexa Rank: 210
Alexa Reach: 0.0002%
SEMrush Rank (US): 554
SEMrush Authority Score: 88
Moz Domain Authority: 98
Moz Page Authority: 80

Rank By Country

Country Alexa Rank
Argentina Flag Argentina 211
Australia Flag Australia 397
Azerbaijan Flag Azerbaijan 322
Bangladesh Flag Bangladesh 222
Brazil Flag Brazil 270
Canada Flag Canada 434
China Flag China 303
Colombia Flag Colombia 187
Germany Flag Germany 348
Algeria Flag Algeria 245
Egypt Flag Egypt 190
Spain Flag Spain 273
France Flag France 294
United Kingdom Flag United Kingdom 478
Hong Kong Flag Hong Kong 242
Indonesia Flag Indonesia 324
India Flag India 178
Iran, Islamic Republic Of Flag Iran, Islamic Republic Of 228
Italy Flag Italy 437
Japan Flag Japan 705
Korea Republic Of Flag Korea Republic Of 462
Mexico Flag Mexico 355
Nigeria Flag Nigeria 206
Netherlands Flag Netherlands 339
Pakistan Flag Pakistan 162
Poland Flag Poland 274
Romania Flag Romania 257
Russian Federation Flag Russian Federation 538
Saudi Arabia Flag Saudi Arabia 468
Thailand Flag Thailand 395
Tunisia Flag Tunisia 68
Turkey Flag Turkey 363
Taiwan, Province Of China Flag Taiwan, Province Of China 448
Tanzania, United Republic Of Flag Tanzania, United Republic Of 37
Ukraine Flag Ukraine 300
United States Flag United States 451
Venezuela Flag Venezuela 494
Viet Nam Flag Viet Nam 298
South Africa Flag South Africa 397

Organic vs Paid (Google Ads)

Organic Paid
Keywords: 1,264,854 23
Traffic: 6,344,834 3,599
Cost: $5,974,522 USD $5,450 USD
Traffic

Visitors

Daily Visitors: 11,401,085
Monthly Visitors: 347,013,113
Yearly Visitors: 4,161,396,025
Note: All visitors figures are estimates.

Visitors By Country

Country Visitors (Unique) Percentage
Argentina Flag Argentina Daily: 125,412
Monthly: 3,817,144
Yearly: 45,775,356
1.1%
Australia Flag Australia Daily: 102,610
Monthly: 3,123,118
Yearly: 37,452,564
0.9%
Azerbaijan Flag Azerbaijan Daily: 159,615
Monthly: 4,858,184
Yearly: 58,259,544
1.4%
Bangladesh Flag Bangladesh Daily: 79,808
Monthly: 2,429,092
Yearly: 29,129,772
0.7%
Brazil Flag Brazil Daily: 342,033
Monthly: 10,410,393
Yearly: 124,841,881
3%
Canada Flag Canada Daily: 136,813
Monthly: 4,164,157
Yearly: 49,936,752
1.2%
China Flag China Daily: 2,439,832
Monthly: 74,260,806
Yearly: 890,538,749
21.4%
Colombia Flag Colombia Daily: 114,011
Monthly: 3,470,131
Yearly: 41,613,960
1%
Germany Flag Germany Daily: 250,824
Monthly: 7,634,288
Yearly: 91,550,713
2.2%
Algeria Flag Algeria Daily: 68,407
Monthly: 2,082,079
Yearly: 24,968,376
0.6%
Egypt Flag Egypt Daily: 205,220
Monthly: 6,246,236
Yearly: 74,905,128
1.8%
Spain Flag Spain Daily: 171,016
Monthly: 5,205,197
Yearly: 62,420,940
1.5%
France Flag France Daily: 193,818
Monthly: 5,899,223
Yearly: 70,743,732
1.7%
United Kingdom Flag United Kingdom Daily: 182,417
Monthly: 5,552,210
Yearly: 66,582,336
1.6%
Hong Kong Flag Hong Kong Daily: 79,808
Monthly: 2,429,092
Yearly: 29,129,772
0.7%
Indonesia Flag Indonesia Daily: 136,813
Monthly: 4,164,157
Yearly: 49,936,752
1.2%
India Flag India Daily: 1,333,927
Monthly: 40,600,534
Yearly: 486,883,335
11.7%
Iran, Islamic Republic Of Flag Iran, Islamic Republic Of Daily: 364,835
Monthly: 11,104,420
Yearly: 133,164,673
3.2%
Italy Flag Italy Daily: 136,813
Monthly: 4,164,157
Yearly: 49,936,752
1.2%
Japan Flag Japan Daily: 285,027
Monthly: 8,675,328
Yearly: 104,034,901
2.5%
Korea Republic Of Flag Korea Republic Of Daily: 159,615
Monthly: 4,858,184
Yearly: 58,259,544
1.4%
Mexico Flag Mexico Daily: 171,016
Monthly: 5,205,197
Yearly: 62,420,940
1.5%
Nigeria Flag Nigeria Daily: 136,813
Monthly: 4,164,157
Yearly: 49,936,752
1.2%
Netherlands Flag Netherlands Daily: 79,808
Monthly: 2,429,092
Yearly: 29,129,772
0.7%
Other Daily: 1,447,938
Monthly: 44,070,665
Yearly: 528,497,295
12.7%
Pakistan Flag Pakistan Daily: 182,417
Monthly: 5,552,210
Yearly: 66,582,336
1.6%
Poland Flag Poland Daily: 148,214
Monthly: 4,511,170
Yearly: 54,098,148
1.3%
Romania Flag Romania Daily: 68,407
Monthly: 2,082,079
Yearly: 24,968,376
0.6%
Russian Federation Flag Russian Federation Daily: 205,220
Monthly: 6,246,236
Yearly: 74,905,128
1.8%
Saudi Arabia Flag Saudi Arabia Daily: 68,407
Monthly: 2,082,079
Yearly: 24,968,376
0.6%
Thailand Flag Thailand Daily: 79,808
Monthly: 2,429,092
Yearly: 29,129,772
0.7%
Tunisia Flag Tunisia Daily: 57,005
Monthly: 1,735,066
Yearly: 20,806,980
0.5%
Turkey Flag Turkey Daily: 114,011
Monthly: 3,470,131
Yearly: 41,613,960
1%
Taiwan, Province Of China Flag Taiwan, Province Of China Daily: 125,412
Monthly: 3,817,144
Yearly: 45,775,356
1.1%
Tanzania, United Republic Of Flag Tanzania, United Republic Of Daily: 79,808
Monthly: 2,429,092
Yearly: 29,129,772
0.7%
Ukraine Flag Ukraine Daily: 57,005
Monthly: 1,735,066
Yearly: 20,806,980
0.5%
United States Flag United States Daily: 1,105,905
Monthly: 33,660,272
Yearly: 403,655,414
9.7%
Venezuela Flag Venezuela Daily: 57,005
Monthly: 1,735,066
Yearly: 20,806,980
0.5%
Viet Nam Flag Viet Nam Daily: 91,209
Monthly: 2,776,105
Yearly: 33,291,168
0.8%
South Africa Flag South Africa Daily: 57,005
Monthly: 1,735,066
Yearly: 20,806,980
0.5%
Note: All visitors figures are estimates.
Revenue

Revenue

Daily Revenue: $106,154 USD
Monthly Revenue: $3,230,994 USD
Yearly Revenue: $38,746,217 USD
Note: All revenue figures are estimates.

Revenue By Country

Country Revenue Percentage
Argentina Flag Argentina Daily: $36 USD
Monthly: $1,093 USD
Yearly: $13,105 USD
<0.1%
Australia Flag Australia Daily: $390 USD
Monthly: $11,881 USD
Yearly: $142,472 USD
0.4%
Azerbaijan Flag Azerbaijan Daily: $17 USD
Monthly: $510 USD
Yearly: $6,122 USD
<0.1%
Bangladesh Flag Bangladesh Daily: $44 USD
Monthly: $1,336 USD
Yearly: $16,026 USD
<0.1%
Brazil Flag Brazil Daily: $530 USD
Monthly: $16,132 USD
Yearly: $193,452 USD
0.5%
Canada Flag Canada Daily: $770 USD
Monthly: $23,447 USD
Yearly: $281,173 USD
0.7%
China Flag China Daily: $8,051 USD
Monthly: $245,035 USD
Yearly: $2,938,469 USD
7.6%
Colombia Flag Colombia Daily: $32 USD
Monthly: $976 USD
Yearly: $11,700 USD
<0.1%
Germany Flag Germany Daily: $2,093 USD
Monthly: $63,719 USD
Yearly: $764,116 USD
2%
Algeria Flag Algeria Daily: $13 USD
Monthly: $404 USD
Yearly: $4,841 USD
<0.1%
Egypt Flag Egypt Daily: $51 USD
Monthly: $1,563 USD
Yearly: $18,744 USD
<0.1%
Spain Flag Spain Daily: $334 USD
Monthly: $10,173 USD
Yearly: $121,994 USD
0.3%
France Flag France Daily: $896 USD
Monthly: $27,274 USD
Yearly: $327,073 USD
0.8%
United Kingdom Flag United Kingdom Daily: $1,889 USD
Monthly: $57,508 USD
Yearly: $689,640 USD
1.8%
Hong Kong Flag Hong Kong Daily: $33 USD
Monthly: $993 USD
Yearly: $11,907 USD
<0.1%
Indonesia Flag Indonesia Daily: $298 USD
Monthly: $9,079 USD
Yearly: $108,873 USD
0.3%
India Flag India Daily: $12,419 USD
Monthly: $378,005 USD
Yearly: $4,533,047 USD
11.7%
Iran, Islamic Republic Of Flag Iran, Islamic Republic Of Daily: $0 USD
Monthly: $0 USD
Yearly: $0 USD
<0.1%
Italy Flag Italy Daily: $261 USD
Monthly: $7,939 USD
Yearly: $95,209 USD
0.2%
Japan Flag Japan Daily: $449 USD
Monthly: $13,664 USD
Yearly: $163,854 USD
0.4%
Korea Republic Of Flag Korea Republic Of Daily: $442 USD
Monthly: $13,465 USD
Yearly: $161,475 USD
0.4%
Mexico Flag Mexico Daily: $141 USD
Monthly: $4,280 USD
Yearly: $51,329 USD
0.1%
Nigeria Flag Nigeria Daily: $109 USD
Monthly: $3,312 USD
Yearly: $39,724 USD
0.1%
Netherlands Flag Netherlands Daily: $212 USD
Monthly: $6,454 USD
Yearly: $77,397 USD
0.2%
Other Daily: $0 USD
Monthly: $0 USD
Yearly: $0 USD
<0.1%
Pakistan Flag Pakistan Daily: $236 USD
Monthly: $7,196 USD
Yearly: $86,296 USD
0.2%
Poland Flag Poland Daily: $102 USD
Monthly: $3,097 USD
Yearly: $37,145 USD
0.1%
Romania Flag Romania Daily: $19 USD
Monthly: $591 USD
Yearly: $7,092 USD
<0.1%
Russian Federation Flag Russian Federation Daily: $117 USD
Monthly: $3,568 USD
Yearly: $42,790 USD
0.1%
Saudi Arabia Flag Saudi Arabia Daily: $49 USD
Monthly: $1,497 USD
Yearly: $17,954 USD
<0.1%
Thailand Flag Thailand Daily: $58 USD
Monthly: $1,776 USD
Yearly: $21,293 USD
0.1%
Tunisia Flag Tunisia Daily: $6 USD
Monthly: $180 USD
Yearly: $2,160 USD
<0.1%
Turkey Flag Turkey Daily: $130 USD
Monthly: $3,952 USD
Yearly: $47,388 USD
0.1%
Taiwan, Province Of China Flag Taiwan, Province Of China Daily: $33 USD
Monthly: $1,008 USD
Yearly: $12,094 USD
<0.1%
Tanzania, United Republic Of Flag Tanzania, United Republic Of Daily: $7 USD
Monthly: $215 USD
Yearly: $2,578 USD
<0.1%
Ukraine Flag Ukraine Daily: $14 USD
Monthly: $430 USD
Yearly: $5,162 USD
<0.1%
United States Flag United States Daily: $75,649 USD
Monthly: $2,302,507 USD
Yearly: $27,611,763 USD
71.3%
Venezuela Flag Venezuela Daily: $5 USD
Monthly: $158 USD
Yearly: $1,895 USD
<0.1%
Viet Nam Flag Viet Nam Daily: $75 USD
Monthly: $2,274 USD
Yearly: $27,266 USD
0.1%
South Africa Flag South Africa Daily: $141 USD
Monthly: $4,303 USD
Yearly: $51,598 USD
0.1%
Note: All revenue figures are estimates.
SEO

Backlinks Analysis (SEMrush)

Backlinks: 313,125,847
Referring Domains: 1,440,195
Referring IPs: 576,779
Mozilla.org has 313,125,847 backlinks according to SEMrush. 84% of these backlinks are "dofollow" (follow) links which allow the flow of link equity to pass through, which may improve mozilla.org's search engine rankings. Other links are treated as 'hints' by search engines and may also pass link equity, depending on what search engines decide in each case.
100% of mozilla.org's backlinks are text and image links, which are ideal for SEO. Other backlink types may be unrecognized or ignored by search engines.

Top New Follow Links

1
Source: https://browsehappy.com/
Target: https://www.mozilla.org/firefox/

2
Source: https://www.thunderbird.net/%20
Target: https://download.mozilla.org/?lang=en-US&os=win64&product=thunderbird-75.0b1-msi-SSL

3
Source: https://www.thunderbird.net/%20
Target: https://download.mozilla.org/?lang=en-US&os=win64&product=thunderbird-75.0b1-msi-SSL

4
Source: https://www.thunderbird.net/%20
Target: https://download.mozilla.org/?lang=en-US&os=linux&product=thunderbird-74.0b1-SSL

5
Source: https://www.thunderbird.net/%20
Target: https://download.mozilla.org/?lang=en-US&os=linux&product=thunderbird-74.0b1-SSL

Top Ranking Keywords (US)

1
Keyword: firefox
Ranked Page: https://www.mozilla.org/en-US/firefox/

2
Keyword: firefox download
Ranked Page: https://www.mozilla.org/en-US/firefox/new/

3
Keyword: mozilla firefox
Ranked Page: https://www.mozilla.org/en-US/firefox/new/

4
Keyword: null
Ranked Page: https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/null

5
Keyword: mozilla
Ranked Page: https://www.mozilla.org/en-US/

Domain Analysis

Value Length
Domain: mozilla.org 11
Domain Name: mozilla 7
Extension (TLD): org 3
Expiry Check:

Page Speed Analysis

Average Load Time: 0.61 seconds
Load Time Comparison: Faster than 90% of sites

PageSpeed Insights

Avg. (All Categories) 75
Performance 83
Accessibility 85
Best Practices 92
SEO 83
PWA 33
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: https://www.mozilla.org/en-US/
Updated: 4th January, 2023

1.32 seconds
First Contentful Paint (FCP)
84%
9%
7%

0.00 seconds
First Input Delay (FID)
98%
1%
1%

Simulate loading on desktop
83

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for mozilla.org. This includes details about optimizing page load times which can result in a better user experience.

Metrics

Time to Interactive — 2.2 s
The time taken for the page to become fully interactive.
Total Blocking Time — 30 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).
Cumulative Layout Shift — 0.001
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Audits

Max Potential First Input Delay — 80 ms
Users could experience a delay when interacting with the page.
Network Requests
Below is a list of network requests that were made during page load.
URL Protocol Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://mozilla.org/
http/1.1
0
185.26499997824
312
0
301
text/html
https://mozilla.org/
http/1.1
185.65700016916
446.84200012125
419
0
301
text/html
https://www.mozilla.org/
http/1.1
447.20800011419
690.60200010426
2471
0
302
text/html
https://www.mozilla.org/en-US/
h2
691.17300002836
821.40100002289
21926
106593
200
text/html
Document
https://www.mozilla.org/media/js/site.d8d3c66f72e1.js
h2
831.65100007318
925.65900017507
2850
6616
200
application/javascript
Script
https://www.mozilla.org/media/css/protocol-mozilla.fbded7532a56.css
h2
831.77000004798
871.17100018077
10354
68725
200
text/css
Stylesheet
https://www.mozilla.org/media/css/mozilla-c-section-heading.cf226ab9b86e.css
h2
832.15200016275
889.88300017081
985
445
200
text/css
Stylesheet
https://www.mozilla.org/media/css/mozilla-c-split.3fb315e85a15.css
h2
832.70799997263
918.76400006004
1981
8489
200
text/css
Stylesheet
https://www.mozilla.org/media/css/c-logo.3c98dc340d92.css
h2
832.95499999076
919.60300016217
2588
29365
200
text/css
Stylesheet
https://www.mozilla.org/media/css/protocol-call-out.cab1cbd86f18.css
h2
833.06100009941
919.91699999198
1720
6748
200
text/css
Stylesheet
https://www.mozilla.org/media/css/protocol-newsletter.eaf159128d01.css
h2
833.33300007507
865.44500011951
1165
2348
200
text/css
Stylesheet
https://www.mozilla.org/media/css/home-contentful.d6c2eccdf2d2.css
h2
833.63500004634
892.05100014806
2652
8937
200
text/css
Stylesheet
https://www.mozilla.org/media/css/firefox-app-store-banner.a0d7cb4cc953.css
h2
833.91000004485
864.8890000768
1500
2997
200
text/css
Stylesheet
https://www.mozilla.org/media/css/home-firefox-mr106-promo.e1b71999b5e5.css
h2
834.33700003661
920.78600008972
1467
4539
200
text/css
Stylesheet
https://www.mozilla.org/media/js/gtm-snippet.9f9cf2026c5f.js
h2
834.60800000466
865.79000018537
1067
514
200
application/javascript
Script
https://www.mozilla.org/media/protocol/img/logos/mozilla/logo-word-hor.e20791bb4dd4.svg
h2
943.84000007994
986.47700017318
1397
1799
200
image/svg+xml
Image
https://www.mozilla.org/media/img/home/2022/mr-hero-custom.ca72ac666bbb.svg
h2
943.93400009722
989.74600015208
3626
9350
200
image/svg+xml
Image
https://www.mozilla.org/media/img/home/2022/mr-hero-sync.56d661c20694.svg
h2
944.37100016512
1045.987999998
2901
6730
200
image/svg+xml
Image
https://images.ctfassets.net/w5er3c7zdgmd/3vukypoPTTpRYctNjWoUkc/03dfba34b9aab288f7c25d257a621cf0/billboard-more-power-high-res.5e9e07e1024c.png?w=800
h2
944.46000014432
976.9250000827
83828
83314
200
image/png
Image
https://www.mozilla.org/media/img/home/2018/newsletter-graphic.3debb24fbacc.png
h2
944.59500000812
990.03099999391
22375
21832
200
image/png
Image
https://www.mozilla.org/media/img/banners/mobile/app-icon-512.782bf4aa77fd.jpg
h2
944.68099996448
989.46100007743
13572
13028
200
image/jpeg
Image
https://www.mozilla.org/media/js/sentry.939e6a6ef56d.js
h2
923.8980000373
966.09400003217
17685
53791
200
application/javascript
Script
https://www.mozilla.org/media/js/lib.212d7e62f37e.js
h2
928.00800013356
966.63599996828
5780
16293
200
application/javascript
Script
https://www.mozilla.org/media/js/ui.e5168a14d6d4.js
h2
942.03600008041
993.35200013593
3352
11384
200
application/javascript
Script
https://www.mozilla.org/media/js/fxa.3465945dcb1c.js
h2
943.28200002201
980.86400004104
2465
6399
200
application/javascript
Script
https://www.mozilla.org/media/js/data.309416ba6525.js
h2
943.3910001535
984.01800007559
1730
3052
200
application/javascript
Script
https://www.mozilla.org/media/js/stub-attribution.57de0a54bd84.js
h2
943.48100014031
981.8470000755
2281
4967
200
application/javascript
Script
https://www.mozilla.org/media/js/home-contentful.85538a2462c5.js
h2
943.57800018042
1046.5090000071
2000
3490
200
application/javascript
Script
https://www.mozilla.org/media/js/newsletter.123c79d27dac.js
h2
943.66500014439
984.32800010778
2079
4734
200
application/javascript
Script
https://www.mozilla.org/media/js/firefox-app-store-banner.43a61621f4d6.js
h2
943.75100010075
985.82600010559
1203
1339
200
application/javascript
Script
https://www.googletagmanager.com/gtm.js?id=GTM-MW3R8V&l=dataLayer
h2
944.76600014605
988.24900016189
70490
283543
200
application/javascript
Script
https://www.mozilla.org/media/protocol/fonts/Inter-Bold.0564381b22b2.woff2
h2
950.85400016978
1033.7790001649
96472
95928
200
font/woff2
Font
https://www.mozilla.org/media/protocol/fonts/Inter-Regular.d55e957612a3.woff2
h2
953.40300002135
1045.3650001436
89457
88816
200
font/woff2
Font
https://www.mozilla.org/media/img/home/2022/logo-word-hor-white.2dd0008c1207.svg
h2
1013.3950000163
1053.6299999803
3964
11210
200
image/svg+xml
Image
https://www.mozilla.org/media/protocol/img/logos/mozilla/vpn/logo-word-hor-stack.8f9444bb577e.svg
h2
1016.709000105
1109.5569999889
1745
2517
200
image/svg+xml
Image
https://www.mozilla.org/media/protocol/img/logos/firefox/browser/logo-word-hor.7ff44b5b4194.svg
h2
1016.9659999665
1053.2720000483
4350
13786
200
image/svg+xml
Image
https://www.mozilla.org/media/protocol/img/logos/pocket/logo-word-hor.11098ff7a2f8.svg
h2
1017.0650000218
1054.8000000417
2044
3710
200
image/svg+xml
Image
https://www.mozilla.org/media/protocol/img/logos/firefox/relay/logo-word-hor.cb2ceed823ad.svg
h2
1017.196000088
1053.9180000778
4346
9288
200
image/svg+xml
Image
https://www.mozilla.org/media/img/home/2018/shield.b3969e107bae.svg
h2
1018.1570001878
1051.8950000405
1189
1366
200
image/svg+xml
Image
https://www.mozilla.org/media/img/home/2018/bg-secondary.00e2994fcf64.svg
h2
1018.2770001702
1054.4050000608
1182
637
200
image/svg+xml
Image
https://www.mozilla.org/media/protocol/img/logos/firefox/browser/logo.eb1324e44442.svg
h2
1018.6270000413
1052.228000015
3278
10572
200
image/svg+xml
Image
https://www.mozilla.org/media/protocol/img/logos/mozilla/logo-word-hor-white.8e4c6167b986.svg
h2
1018.7750000041
1052.7240000665
1467
1828
200
image/svg+xml
Image
https://www.mozilla.org/media/protocol/img/icons/social/twitter/white.79fc9d8867ed.svg
h2
1020.177999977
1058.5930000525
1093
548
200
image/svg+xml
Image
https://www.mozilla.org/media/img/logos/social/mastodon-white.374a4f9f14a0.svg
h2
1021.9750001561
1057.2480000556
1173
632
200
image/svg+xml
Image
https://www.mozilla.org/media/protocol/img/icons/social/instagram/white.a7014a6150b3.svg
h2
1022.1790000796
1056.8699999712
1287
1509
200
image/svg+xml
Image
https://www.mozilla.org/media/img/logos/social/linkedin-white.cdc0e910cc1e.svg
h2
1022.2930000164
1058.0870001577
1073
528
200
image/svg+xml
Image
https://www.mozilla.org/media/img/logos/social/tiktok-white.599403de7ac0.svg
h2
1026.7590000294
1058.3069999702
1233
688
200
image/svg+xml
Image
https://www.mozilla.org/media/img/logos/social/spotify-white.aa5334e85bae.svg
h2
1026.9760000519
1059.4580001198
1222
677
200
image/svg+xml
Image
https://www.mozilla.org/media/protocol/img/icons/social/youtube/white.4f314c43c69d.svg
h2
1027.0920000039
1059.2210001778
1017
472
200
image/svg+xml
Image
data
1025.673000142
1025.910000084
0
206
200
image/svg+xml
Image
data
1030.3640000056
1030.4480001796
0
197
200
image/svg+xml
Image
https://www.mozilla.org/media/protocol/fonts/ZillaSlab-Bold.8d7f01331d2b.woff2
h2
1031.3910001423
1089.2750001512
68804
68260
200
font/woff2
Font
https://www.mozilla.org/media/protocol/fonts/Metropolis-Bold.6a80125e795a.woff2
h2
1031.7000001669
1066.0110001918
17272
16728
200
font/woff2
Font
https://images.ctfassets.net/w5er3c7zdgmd/4fs0FfxfFZTQipzluL9VDV/ee71e84f7fa80398872f0efe7ccdf232/vpn-laptop.png?w=800
h2
1192.0930000488
1311.2759999931
95513
94999
200
image/png
Image
https://images.ctfassets.net/w5er3c7zdgmd/62J3owKrB5Ilf72tPnKgam/54bb1f62f4b5228ae79adf937c7bfbbb/Firefox_Asset_2.png?w=800
h2
1192.2800000757
1222.1260000952
195361
194846
200
image/png
Image
https://images.ctfassets.net/w5er3c7zdgmd/2ySD0uwR3K2TtYItTDFFm8/655364580fc7a7f0789d7299710d58d3/pocket-rainbow.jpg?w=800
h2
1192.379000131
1209.9960001651
52481
51966
200
image/jpeg
Image
https://images.ctfassets.net/w5er3c7zdgmd/5vINWpTcQT97f8u2bBUYF6/0ce014e0b59d7dc331983d56e9b9def1/Relay_-_Asset_1_.png?w=800
h2
1192.5670001656
1228.2850001939
34217
33726
200
image/png
Image
https://www.googletagmanager.com/gtag/js?id=G-MQ7767QQQW&l=dataLayer&cx=c
h2
1417.7720001899
1461.752000032
79847
236489
200
application/javascript
Script
https://www.google-analytics.com/g/collect?v=2&tid=G-MQ7767QQQW&gtm=2oebu0&_p=1029349889&cid=751037935.1672858953&ul=en-us&sr=800x600&uaa=x86&uab=&uafvl=&uamb=0&uam=&uap=macOS&uapv=10.15.7&uaw=0&_s=1&sid=1672858953&sct=1&seg=0&dl=https%3A%2F%2Fwww.mozilla.org%2Fen-US%2F&dt=Internet%20for%20people%2C%20not%20profit%20%E2%80%94%20Mozilla&en=page_view&_fv=1&_nsi=1&_ss=1
1557.6349999756
1562.5030000228
0
0
-1
Ping
https://www.google-analytics.com/analytics.js
h2
1804.3720000423
1812.1540001594
20664
50230
200
text/javascript
Script
https://www.google-analytics.com/plugins/ua/linkid.js
h2
1824.1680001374
1830.8570000809
1679
1569
200
text/javascript
Script
https://www.google-analytics.com/j/collect?v=1&_v=j98&aip=1&a=1029349889&t=pageview&_s=1&dl=https%3A%2F%2Fwww.mozilla.org%2Fen-US%2F&dp=%2Fen-US%2F&ul=en-us&de=UTF-8&dt=Internet%20for%20people%2C%20not%20profit%20%E2%80%94%20Mozilla&sd=24-bit&sr=800x600&vp=1350x940&je=0&_u=aCDAAEAjAAAAACABI~&jid=564458831&gjid=1494878599&cid=751037935.1672858953&tid=UA-36116321-1&_gid=838078668.1672858954&_r=1&gtm=2wgbu0MW3R8V&cd9=&cd13=&cd14=&cd40=(not%20set)&cd41=(not%20set)&cd42=(not%20set)&cd43=(not%20set)&cd44=(not%20set)&cd53=false&cd54=false&cd55=true&cd56=Mozilla%2F5.0%20(Macintosh%3B%20Intel%20Mac%20OS%20X%2010_15_7)%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F98.0.4695.0%20Safari%2F537.36%20Chrome-Lighthouse&cd58=Homepage&cd59=108.0.1&cd64=GA%20Pageview%20-%20Core%20Tracking&cd65=Not%20Firefox&cd66=(not%20set)&cd67=(not%20set)&cd68=(not%20set)&z=1975608390
h2
1843.8069999684
1854.2630001903
613
1
200
text/plain
XHR
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
826.803
16.505
932.964
10.626
945.607
13.985
963.451
8.837
983.482
8.385
999.937
182.913
1183.249
9.115
1196.12
9.183
1207.104
23.179
1230.297
8.485
1282.973
7.127
1292.908
33.336
1332.681
5.983
1346.532
7.23
1353.775
10.084
1364.009
23.791
1400.975
17.361
1420.229
6.624
1483.616
77.101
1791.018
13.815
1819.278
17.228
1837.668
7.342
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data
Script Treemap Data
Provide as required, for treemap app.

Other

Properly size images — Potential savings of 233 KiB
Images can slow down the page's load time. Mozilla.org should consider serving more appropriate-sized images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://images.ctfassets.net/w5er3c7zdgmd/62J3owKrB5Ilf72tPnKgam/54bb1f62f4b5228ae79adf937c7bfbbb/Firefox_Asset_2.png?w=800
194846
101010
https://images.ctfassets.net/w5er3c7zdgmd/4fs0FfxfFZTQipzluL9VDV/ee71e84f7fa80398872f0efe7ccdf232/vpn-laptop.png?w=800
94999
49317
https://images.ctfassets.net/w5er3c7zdgmd/3vukypoPTTpRYctNjWoUkc/03dfba34b9aab288f7c25d257a621cf0/billboard-more-power-high-res.5e9e07e1024c.png?w=800
83314
31066
https://images.ctfassets.net/w5er3c7zdgmd/2ySD0uwR3K2TtYItTDFFm8/655364580fc7a7f0789d7299710d58d3/pocket-rainbow.jpg?w=800
51966
26936
https://images.ctfassets.net/w5er3c7zdgmd/5vINWpTcQT97f8u2bBUYF6/0ce014e0b59d7dc331983d56e9b9def1/Relay_-_Asset_1_.png?w=800
33726
17481
https://www.mozilla.org/media/img/banners/mobile/app-icon-512.782bf4aa77fd.jpg
13028
12867
Defer offscreen images
Time to Interactive can be slowed down by resources on the page. Mozilla.org should consider lazy-loading offscreen and hidden images.
Minify CSS
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Mozilla.org should consider minifying CSS files.
Minify JavaScript
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Mozilla.org should consider minifying JS files.
Reduce unused CSS
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Mozilla.org should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
Reduce unused JavaScript — Potential savings of 29 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.googletagmanager.com/gtag/js?id=G-MQ7767QQQW&l=dataLayer&cx=c
79847
29402
Efficiently encode images
Unoptimized images can consume more cellular data than what is necessary.
Serve images in next-gen formats — Potential savings of 288 KiB
Consider JPEG 2000, JPEG XR or WebP image formats which provide better compression than PNG and JPEG.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://images.ctfassets.net/w5er3c7zdgmd/62J3owKrB5Ilf72tPnKgam/54bb1f62f4b5228ae79adf937c7bfbbb/Firefox_Asset_2.png?w=800
194846
178906.9
https://images.ctfassets.net/w5er3c7zdgmd/4fs0FfxfFZTQipzluL9VDV/ee71e84f7fa80398872f0efe7ccdf232/vpn-laptop.png?w=800
94999
56182.05
https://images.ctfassets.net/w5er3c7zdgmd/5vINWpTcQT97f8u2bBUYF6/0ce014e0b59d7dc331983d56e9b9def1/Relay_-_Asset_1_.png?w=800
33726
23531.85
https://images.ctfassets.net/w5er3c7zdgmd/2ySD0uwR3K2TtYItTDFFm8/655364580fc7a7f0789d7299710d58d3/pocket-rainbow.jpg?w=800
51966
19830.25
https://images.ctfassets.net/w5er3c7zdgmd/3vukypoPTTpRYctNjWoUkc/03dfba34b9aab288f7c25d257a621cf0/billboard-more-power-high-res.5e9e07e1024c.png?w=800
83314
16052.9
Enable text compression
Text-based resources should be served with compression, such as gzip, deflate or brotli.
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Initial server response time was short — Root document took 130 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
https://www.mozilla.org/en-US/
131.222
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Mozilla.org should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers — Potential savings of 9 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.
URL Potential Savings (Bytes)
https://www.mozilla.org/media/js/lib.212d7e62f37e.js
9671
Preload Largest Contentful Paint image
It is recommended to preload images used by LCP elements, to improve LCP time.
URL Potential Savings (Ms)
https://www.mozilla.org/media/img/home/2022/mr-hero-custom.ca72ac666bbb.svg
0
Avoids enormous network payloads — Total size was 1,049 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://images.ctfassets.net/w5er3c7zdgmd/62J3owKrB5Ilf72tPnKgam/54bb1f62f4b5228ae79adf937c7bfbbb/Firefox_Asset_2.png?w=800
195361
https://www.mozilla.org/media/protocol/fonts/Inter-Bold.0564381b22b2.woff2
96472
https://images.ctfassets.net/w5er3c7zdgmd/4fs0FfxfFZTQipzluL9VDV/ee71e84f7fa80398872f0efe7ccdf232/vpn-laptop.png?w=800
95513
https://www.mozilla.org/media/protocol/fonts/Inter-Regular.d55e957612a3.woff2
89457
https://images.ctfassets.net/w5er3c7zdgmd/3vukypoPTTpRYctNjWoUkc/03dfba34b9aab288f7c25d257a621cf0/billboard-more-power-high-res.5e9e07e1024c.png?w=800
83828
https://www.googletagmanager.com/gtag/js?id=G-MQ7767QQQW&l=dataLayer&cx=c
79847
https://www.googletagmanager.com/gtm.js?id=GTM-MW3R8V&l=dataLayer
70490
https://www.mozilla.org/media/protocol/fonts/ZillaSlab-Bold.8d7f01331d2b.woff2
68804
https://images.ctfassets.net/w5er3c7zdgmd/2ySD0uwR3K2TtYItTDFFm8/655364580fc7a7f0789d7299710d58d3/pocket-rainbow.jpg?w=800
52481
https://images.ctfassets.net/w5er3c7zdgmd/5vINWpTcQT97f8u2bBUYF6/0ce014e0b59d7dc331983d56e9b9def1/Relay_-_Asset_1_.png?w=800
34217
Uses efficient cache policy on static assets — 2 resources found
Mozilla.org can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://www.google-analytics.com/plugins/ua/linkid.js
3600000
1679
https://www.google-analytics.com/analytics.js
7200000
20664
Avoid chaining critical requests — 22 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Mozilla.org should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
JavaScript execution time — 0.1 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://www.mozilla.org/media/js/lib.212d7e62f37e.js
182.332
11.424
0.407
Unattributable
166.409
3.291
0
https://www.mozilla.org/en-US/
108.347
4.332
1.155
https://www.googletagmanager.com/gtag/js?id=G-MQ7767QQQW&l=dataLayer&cx=c
79.657
74.07
4.995
Minimizes main-thread work — 0.7 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Style & Layout
224.99
Script Evaluation
188.662
Other
164.907
Rendering
27.323
Parse HTML & CSS
24.13
Script Parsing & Compilation
20.055
Garbage Collection
4.183
All text remains visible during webfont loads
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
Keep request counts low and transfer sizes small — 60 requests • 1,049 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
60
1074264
Image
26
536934
Font
4
272005
Script
15
215172
Stylesheet
9
24412
Document
1
21926
Other
5
3815
Media
0
0
Third-party
11
634693
Minimize third-party usage — Third-party code blocked the main thread for 20 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
150337
21.214
22956
0
Lazy load third-party resources with facades
Consider replacing third-party embeds with a facade until they are required (use lazy loading).
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
Largest Contentful Paint image was not lazily loaded
Above-the-fold images that are lazily loaded render later in the page lifecycle, which can delay the largest contentful paint.
Element
Avoid large layout shifts — 5 elements found
Below is a list of all DOM elements that contribute to the CLS of the page.
Element CLS Contribution
0.00068506081450399
0.00022234646495973
5.3707670662615E-5
4.1547098313061E-5
3.8913831518572E-5
Uses passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Avoid long main-thread tasks — 2 long tasks found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
URL Start Time (Ms) Duration (Ms)
https://www.mozilla.org/media/js/lib.212d7e62f37e.js
2400
91
https://www.googletagmanager.com/gtag/js?id=G-MQ7767QQQW&l=dataLayer&cx=c
2695
77
Avoid non-composited animations
It is recommended to avoid non-composited animations which are often janky and increase CLS.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of mozilla.org on mobile screens.
Avoids `unload` event listeners
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Metrics

First Contentful Paint — 1.2 s
The time taken for the first image or text on the page to be rendered.
Speed Index — 1.7 s
The time taken for the page contents to be visibly populated.
Largest Contentful Paint — 2.2 s
The timing of the largest text or image that is painted.

Other

Eliminate render-blocking resources — Potential savings of 760 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Mozilla.org should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
https://www.mozilla.org/media/css/protocol-mozilla.fbded7532a56.css
10354
110
https://www.mozilla.org/media/css/mozilla-c-section-heading.cf226ab9b86e.css
985
150
https://www.mozilla.org/media/css/mozilla-c-split.3fb315e85a15.css
1981
150
https://www.mozilla.org/media/css/c-logo.3c98dc340d92.css
2588
150
https://www.mozilla.org/media/css/protocol-call-out.cab1cbd86f18.css
1720
150
https://www.mozilla.org/media/css/protocol-newsletter.eaf159128d01.css
1165
150
https://www.mozilla.org/media/css/home-contentful.d6c2eccdf2d2.css
2652
70
https://www.mozilla.org/media/css/firefox-app-store-banner.a0d7cb4cc953.css
1500
70
https://www.mozilla.org/media/css/home-firefox-mr106-promo.e1b71999b5e5.css
1467
70
https://www.mozilla.org/media/js/site.d8d3c66f72e1.js
2850
70
https://www.mozilla.org/media/js/gtm-snippet.9f9cf2026c5f.js
1067
70
Avoid multiple page redirects — Potential savings of 570 ms
Redirects can cause additional delays before the page can begin loading. Mozilla.org should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://mozilla.org/
190
https://mozilla.org/
150
https://www.mozilla.org/
230
https://www.mozilla.org/en-US/
0
Avoid an excessive DOM size — 893 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
893
Maximum DOM Depth
19
Maximum Child Elements
272

Audits

First Meaningful Paint — 1.6 s
The time taken for the primary content of the page to be rendered.

Other

Image elements do not have explicit `width` and `height`
Reduce layout shifts and improve CLS by setting explicit width and height properties on image elements.
URL
https://images.ctfassets.net/w5er3c7zdgmd/4fs0FfxfFZTQipzluL9VDV/ee71e84f7fa80398872f0efe7ccdf232/vpn-laptop.png?w=800
https://images.ctfassets.net/w5er3c7zdgmd/2ySD0uwR3K2TtYItTDFFm8/655364580fc7a7f0789d7299710d58d3/pocket-rainbow.jpg?w=800
https://images.ctfassets.net/w5er3c7zdgmd/5vINWpTcQT97f8u2bBUYF6/0ce014e0b59d7dc331983d56e9b9def1/Relay_-_Asset_1_.png?w=800
https://images.ctfassets.net/w5er3c7zdgmd/62J3owKrB5Ilf72tPnKgam/54bb1f62f4b5228ae79adf937c7bfbbb/Firefox_Asset_2.png?w=800
https://www.mozilla.org/media/img/home/2018/newsletter-graphic.3debb24fbacc.png
https://www.mozilla.org/media/img/home/2022/mr-hero-custom.ca72ac666bbb.svg
85

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of mozilla.org. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
`[id]` attributes on active, focusable elements are unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`button`, `link`, and `menuitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
ARIA `meter` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `progressbar` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
ARIA `tooltip` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `treeitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
Links have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.
`<object>` elements have alternate text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Contrast

Background and foreground colors have a sufficient contrast ratio
Many (if not most) users find low-contrast text difficult or impossible to read.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Mozilla.org may provide assistance to deaf or hearing-impaired users with captions on videos.

ARIA

`[aria-*]` attributes do not match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
Failing Elements

Navigation

Heading elements are not in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
Failing Elements

Names and labels

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
92

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that mozilla.org should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids front-end JavaScript libraries with known security vulnerabilities
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Ensure CSP is effective against XSS attacks
Significantly reduce the risk of cross-site scripting attacks (XSS) by ensuring you have a strong Content Security Policy (CSP).
Description Directive Severity
Host allowlists can frequently be bypassed. Consider using CSP nonces or hashes instead, along with 'strict-dynamic' if necessary.
script-src
High
'unsafe-inline' allows the execution of unsafe in-page scripts and event handlers. Consider using CSP nonces or hashes to allow scripts individually.
script-src
High

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
Serves images with appropriate resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.
Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
No browser errors logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
Page has valid source maps
Consider deploying source maps for added benefits such as the ability to debug while in production.
No issues in the `Issues` panel in Chrome Devtools
There may be unresolved issues logged to Chrome Devtools.

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL Request Resolution
http://mozilla.org/
Allowed
83

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for mozilla.org. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of mozilla.org on mobile screens.
Document uses legible font sizes
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Tap targets are sized appropriately
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Links are crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
33

PWA

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of mozilla.org. This includes details about web app manifests.

PWA Optimized

Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of mozilla.org on mobile screens.
Provides a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.

Installable

Web app manifest or service worker do not meet the installability requirements — 1 reason
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
Failure reason
No manifest was fetched

PWA Optimized

Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Avg. (All Categories) 70
Performance 44
Accessibility 90
Best Practices 92
SEO 85
PWA 40
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: https://www.mozilla.org/en-US/
Updated: 4th January, 2023

2.01 seconds
First Contentful Paint (FCP)
71%
17%
12%

0.02 seconds
First Input Delay (FID)
93%
6%
1%

Simulate loading on mobile
44

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for mozilla.org. This includes details about optimizing page load times which can result in a better user experience.

Metrics

Total Blocking Time — 150 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).

Other

Properly size images — Potential savings of 12 KiB
Images can slow down the page's load time. Mozilla.org should consider serving more appropriate-sized images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://www.mozilla.org/media/img/banners/mobile/app-icon-512.782bf4aa77fd.jpg
13028
11915
Defer offscreen images — Potential savings of 63 KiB
Time to Interactive can be slowed down by resources on the page. Mozilla.org should consider lazy-loading offscreen and hidden images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://www.mozilla.org/media/img/home/2018/newsletter-graphic-high-res.dfdd8a0a8b68.png
61950
61950
https://www.mozilla.org/media/img/home/2022/mr-hero-sync.56d661c20694.svg
2901
2901
Minify CSS
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Mozilla.org should consider minifying CSS files.
Minify JavaScript
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Mozilla.org should consider minifying JS files.
Reduce unused CSS
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Mozilla.org should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
Efficiently encode images
Unoptimized images can consume more cellular data than what is necessary.
Enable text compression
Text-based resources should be served with compression, such as gzip, deflate or brotli.
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Initial server response time was short — Root document took 40 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
https://www.mozilla.org/en-US/
44.001
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Mozilla.org should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers — Potential savings of 9 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.
URL Potential Savings (Bytes)
https://www.mozilla.org/media/js/lib.212d7e62f37e.js
9671
Preload Largest Contentful Paint image
It is recommended to preload images used by LCP elements, to improve LCP time.
URL Potential Savings (Ms)
https://www.mozilla.org/media/img/home/2022/mr-hero-custom.ca72ac666bbb.svg
0
Avoids enormous network payloads — Total size was 1,054 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://images.ctfassets.net/w5er3c7zdgmd/62J3owKrB5Ilf72tPnKgam/54bb1f62f4b5228ae79adf937c7bfbbb/Firefox_Asset_2.png?w=800
195361
https://www.mozilla.org/media/protocol/fonts/Inter-Bold.0564381b22b2.woff2
96472
https://images.ctfassets.net/w5er3c7zdgmd/4fs0FfxfFZTQipzluL9VDV/ee71e84f7fa80398872f0efe7ccdf232/vpn-laptop.png?w=800
95513
https://www.mozilla.org/media/protocol/fonts/Inter-Regular.d55e957612a3.woff2
89457
https://images.ctfassets.net/w5er3c7zdgmd/3vukypoPTTpRYctNjWoUkc/03dfba34b9aab288f7c25d257a621cf0/billboard-more-power-high-res.5e9e07e1024c.png?w=800
83828
https://www.googletagmanager.com/gtag/js?id=G-MQ7767QQQW&l=dataLayer&cx=c
79868
https://www.googletagmanager.com/gtm.js?id=GTM-MW3R8V&l=dataLayer
70490
https://www.mozilla.org/media/protocol/fonts/ZillaSlab-Bold.8d7f01331d2b.woff2
68804
https://www.mozilla.org/media/img/home/2018/newsletter-graphic-high-res.dfdd8a0a8b68.png
62493
https://images.ctfassets.net/w5er3c7zdgmd/2ySD0uwR3K2TtYItTDFFm8/655364580fc7a7f0789d7299710d58d3/pocket-rainbow.jpg?w=800
52481
Uses efficient cache policy on static assets — 2 resources found
Mozilla.org can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://www.google-analytics.com/plugins/ua/linkid.js
3600000
1680
https://www.google-analytics.com/analytics.js
7200000
20664
Avoid chaining critical requests — 22 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Mozilla.org should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
JavaScript execution time — 0.6 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://www.mozilla.org/en-US/
731.972
16.22
4.652
Unattributable
422.136
12.088
0
https://www.googletagmanager.com/gtag/js?id=G-MQ7767QQQW&l=dataLayer&cx=c
286.956
270.868
14.148
https://www.googletagmanager.com/gtm.js?id=GTM-MW3R8V&l=dataLayer
147.7
114.064
31.728
https://www.mozilla.org/media/js/sentry.939e6a6ef56d.js
124.484
96.764
3.948
https://www.google-analytics.com/analytics.js
65.224
59.804
4.552
Minimizes main-thread work — 1.9 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
678.84
Style & Layout
583.036
Other
456.464
Rendering
71.912
Script Parsing & Compilation
67.272
Parse HTML & CSS
62.68
Garbage Collection
7.108
All text remains visible during webfont loads
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
Keep request counts low and transfer sizes small — 59 requests • 1,054 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
59
1079715
Image
25
542373
Font
4
272005
Script
15
215194
Stylesheet
9
24412
Document
1
21926
Other
5
3805
Media
0
0
Third-party
10
600498
Minimize third-party usage — Third-party code blocked the main thread for 240 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
150358
230.2
22957
8.292
Lazy load third-party resources with facades
Consider replacing third-party embeds with a facade until they are required (use lazy loading).
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
Largest Contentful Paint image was not lazily loaded
Above-the-fold images that are lazily loaded render later in the page lifecycle, which can delay the largest contentful paint.
Element
Avoid large layout shifts — 4 elements found
Below is a list of all DOM elements that contribute to the CLS of the page.
Element CLS Contribution
0.20942988835328
0.13205172413793
0.034159213362069
0.01772099055297
Uses passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Avoid long main-thread tasks — 7 long tasks found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
URL Start Time (Ms) Duration (Ms)
https://www.googletagmanager.com/gtag/js?id=G-MQ7767QQQW&l=dataLayer&cx=c
10192
277
https://www.mozilla.org/en-US/
2283
226
https://www.googletagmanager.com/gtm.js?id=GTM-MW3R8V&l=dataLayer
9219
73
https://www.googletagmanager.com/gtm.js?id=GTM-MW3R8V&l=dataLayer
9150
69
https://www.google-analytics.com/analytics.js
11302
65
https://www.mozilla.org/en-US/
2220
58
https://www.mozilla.org/media/js/lib.212d7e62f37e.js
10469
58
Avoid non-composited animations
It is recommended to avoid non-composited animations which are often janky and increase CLS.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of mozilla.org on mobile screens.
Avoids `unload` event listeners
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Audits

Network Requests
Below is a list of network requests that were made during page load.
URL Protocol Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://mozilla.org/
http/1.1
0
161.95500036702
312
0
301
text/html
https://mozilla.org/
http/1.1
162.31300029904
393.41100025922
419
0
301
text/html
https://www.mozilla.org/
http/1.1
393.82300013676
428.20600001141
2461
0
302
text/html
https://www.mozilla.org/en-US/
h2
428.74600039795
471.75300028175
21926
106593
200
text/html
Document
https://www.mozilla.org/media/js/site.d8d3c66f72e1.js
h2
483.35800040513
515.12900041416
2850
6616
200
application/javascript
Script
https://www.mozilla.org/media/css/protocol-mozilla.fbded7532a56.css
h2
483.50100032985
520.23600041866
10354
68725
200
text/css
Stylesheet
https://www.mozilla.org/media/css/mozilla-c-section-heading.cf226ab9b86e.css
h2
483.71000029147
515.48200007528
985
445
200
text/css
Stylesheet
https://www.mozilla.org/media/css/mozilla-c-split.3fb315e85a15.css
h2
483.90000034124
517.18000043184
1981
8489
200
text/css
Stylesheet
https://www.mozilla.org/media/css/c-logo.3c98dc340d92.css
h2
484.11600012332
515.92600019649
2588
29365
200
text/css
Stylesheet
https://www.mozilla.org/media/css/protocol-call-out.cab1cbd86f18.css
h2
484.29900035262
518.73700041324
1720
6748
200
text/css
Stylesheet
https://www.mozilla.org/media/css/protocol-newsletter.eaf159128d01.css
h2
484.47100026533
516.17499999702
1165
2348
200
text/css
Stylesheet
https://www.mozilla.org/media/css/home-contentful.d6c2eccdf2d2.css
h2
484.83800003305
517.47900014743
2652
8937
200
text/css
Stylesheet
https://www.mozilla.org/media/css/firefox-app-store-banner.a0d7cb4cc953.css
h2
484.9880002439
516.72700000927
1500
2997
200
text/css
Stylesheet
https://www.mozilla.org/media/css/home-firefox-mr106-promo.e1b71999b5e5.css
h2
485.27700034901
518.52300018072
1467
4539
200
text/css
Stylesheet
https://www.mozilla.org/media/js/gtm-snippet.9f9cf2026c5f.js
h2
485.43500015512
516.49900013581
1067
514
200
application/javascript
Script
https://www.mozilla.org/media/protocol/img/logos/mozilla/logo-word-hor.e20791bb4dd4.svg
h2
532.45000028983
566.92800018936
1397
1799
200
image/svg+xml
Image
https://www.mozilla.org/media/img/home/2022/mr-hero-custom.ca72ac666bbb.svg
h2
532.58400037885
581.17100037634
3626
9350
200
image/svg+xml
Image
https://www.mozilla.org/media/img/home/2022/mr-hero-sync.56d661c20694.svg
h2
532.69900009036
566.48700032383
2901
6730
200
image/svg+xml
Image
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XHR
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
476.578
14.4
525.949
7.131
542.486
113.049
709.091
6.17
719.885
5.675
725.586
21.283
748.838
8.797
770.666
28.832
799.739
11.767
811.711
17.352
833.736
18.331
906.538
69.256
1233.056
9.595
1258.836
16.364
1276.578
6.419
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data
Script Treemap Data
Provide as required, for treemap app.

Metrics

Speed Index — 5.3 s
The time taken for the page contents to be visibly populated.

Other

Reduce unused JavaScript — Potential savings of 29 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.googletagmanager.com/gtag/js?id=G-MQ7767QQQW&l=dataLayer&cx=c
79868
29366
Avoid an excessive DOM size — 897 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
897
Maximum DOM Depth
19
Maximum Child Elements
272

Metrics

First Contentful Paint — 5.3 s
The time taken for the first image or text on the page to be rendered.
Time to Interactive — 9.1 s
The time taken for the page to become fully interactive.
Largest Contentful Paint — 6.8 s
The timing of the largest text or image that is painted.
Cumulative Layout Shift — 0.393
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Audits

Max Potential First Input Delay — 280 ms
Users could experience a delay when interacting with the page.
First Meaningful Paint — 5.3 s
The time taken for the primary content of the page to be rendered.

Other

Eliminate render-blocking resources — Potential savings of 3,690 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Mozilla.org should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
https://www.mozilla.org/media/css/protocol-mozilla.fbded7532a56.css
10354
480
https://www.mozilla.org/media/css/mozilla-c-section-heading.cf226ab9b86e.css
985
480
https://www.mozilla.org/media/css/mozilla-c-split.3fb315e85a15.css
1981
480
https://www.mozilla.org/media/css/c-logo.3c98dc340d92.css
2588
480
https://www.mozilla.org/media/css/protocol-call-out.cab1cbd86f18.css
1720
480
https://www.mozilla.org/media/css/protocol-newsletter.eaf159128d01.css
1165
480
https://www.mozilla.org/media/css/home-contentful.d6c2eccdf2d2.css
2652
180
https://www.mozilla.org/media/css/firefox-app-store-banner.a0d7cb4cc953.css
1500
180
https://www.mozilla.org/media/css/home-firefox-mr106-promo.e1b71999b5e5.css
1467
180
https://www.mozilla.org/media/js/site.d8d3c66f72e1.js
2850
180
https://www.mozilla.org/media/js/gtm-snippet.9f9cf2026c5f.js
1067
180
Serve images in next-gen formats — Potential savings of 284 KiB
Consider JPEG 2000, JPEG XR or WebP image formats which provide better compression than PNG and JPEG.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://images.ctfassets.net/w5er3c7zdgmd/62J3owKrB5Ilf72tPnKgam/54bb1f62f4b5228ae79adf937c7bfbbb/Firefox_Asset_2.png?w=800
194846
178906.9
https://images.ctfassets.net/w5er3c7zdgmd/4fs0FfxfFZTQipzluL9VDV/ee71e84f7fa80398872f0efe7ccdf232/vpn-laptop.png?w=800
94999
56182.05
https://www.mozilla.org/media/img/home/2018/newsletter-graphic-high-res.dfdd8a0a8b68.png
61950
20034.65
https://images.ctfassets.net/w5er3c7zdgmd/2ySD0uwR3K2TtYItTDFFm8/655364580fc7a7f0789d7299710d58d3/pocket-rainbow.jpg?w=800
51966
19830.25
https://images.ctfassets.net/w5er3c7zdgmd/3vukypoPTTpRYctNjWoUkc/03dfba34b9aab288f7c25d257a621cf0/billboard-more-power-high-res.5e9e07e1024c.png?w=800
83314
16052.9
Avoid multiple page redirects — Potential savings of 1,890 ms
Redirects can cause additional delays before the page can begin loading. Mozilla.org should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://mozilla.org/
630
https://mozilla.org/
480
https://www.mozilla.org/
780
https://www.mozilla.org/en-US/
0
Image elements do not have explicit `width` and `height`
Reduce layout shifts and improve CLS by setting explicit width and height properties on image elements.
URL
https://images.ctfassets.net/w5er3c7zdgmd/4fs0FfxfFZTQipzluL9VDV/ee71e84f7fa80398872f0efe7ccdf232/vpn-laptop.png?w=800
https://images.ctfassets.net/w5er3c7zdgmd/3vukypoPTTpRYctNjWoUkc/03dfba34b9aab288f7c25d257a621cf0/billboard-more-power-high-res.5e9e07e1024c.png?w=800
https://images.ctfassets.net/w5er3c7zdgmd/2ySD0uwR3K2TtYItTDFFm8/655364580fc7a7f0789d7299710d58d3/pocket-rainbow.jpg?w=800
https://images.ctfassets.net/w5er3c7zdgmd/62J3owKrB5Ilf72tPnKgam/54bb1f62f4b5228ae79adf937c7bfbbb/Firefox_Asset_2.png?w=800
https://www.mozilla.org/media/img/home/2018/newsletter-graphic-high-res.dfdd8a0a8b68.png
https://www.mozilla.org/media/img/home/2022/mr-hero-custom.ca72ac666bbb.svg
First Contentful Paint (3G) — 10725 ms
The time taken for the first image or text on the page to be rendered while on a 3G network.
90

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of mozilla.org. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
`[id]` attributes on active, focusable elements are unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`[aria-*]` attributes match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
`button`, `link`, and `menuitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
ARIA `meter` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `progressbar` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
ARIA `tooltip` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `treeitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
Links have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.
`<object>` elements have alternate text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Mozilla.org may provide assistance to deaf or hearing-impaired users with captions on videos.

Contrast

Background and foreground colors do not have a sufficient contrast ratio.
Many (if not most) users find low-contrast text difficult or impossible to read.
Failing Elements

Navigation

Heading elements are not in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
Failing Elements

Names and labels

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
92

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that mozilla.org should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids front-end JavaScript libraries with known security vulnerabilities
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Ensure CSP is effective against XSS attacks
Significantly reduce the risk of cross-site scripting attacks (XSS) by ensuring you have a strong Content Security Policy (CSP).
Description Directive Severity
Host allowlists can frequently be bypassed. Consider using CSP nonces or hashes instead, along with 'strict-dynamic' if necessary.
script-src
High
'unsafe-inline' allows the execution of unsafe in-page scripts and event handlers. Consider using CSP nonces or hashes to allow scripts individually.
script-src
High

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
Serves images with appropriate resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.
Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
No browser errors logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
Page has valid source maps
Consider deploying source maps for added benefits such as the ability to debug while in production.
No issues in the `Issues` panel in Chrome Devtools
There may be unresolved issues logged to Chrome Devtools.

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL Request Resolution
http://mozilla.org/
Allowed
85

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for mozilla.org. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of mozilla.org on mobile screens.
Document uses legible font sizes — 100% legible text
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Source Selector % of Page Text Font Size
100.00%
≥ 12px

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Links are crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Mobile Friendly

Tap targets are not sized appropriately — 97% appropriately sized tap targets
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.
Tap Target Size Overlapping Target
66x21

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
40

PWA

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of mozilla.org. This includes details about web app manifests.

PWA Optimized

Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of mozilla.org on mobile screens.
Provides a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.

Installable

Web app manifest or service worker do not meet the installability requirements — 1 reason
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
Failure reason
No manifest was fetched

PWA Optimized

Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Hosting

Server Location

Server IP Address: 44.235.246.155
Continent: North America
Country: United States
United States Flag
Region:
City:
Longitude: -97.822
Latitude: 37.751
Currencies: USD
USN
USS
Languages: English

Web Hosting Provider

Name IP Address
Amazon.com, Inc.
Registration

Domain Registrant

Private Registration: Yes
Name: REDACTED FOR PRIVACY
Organization: Mozilla Corporation
Country: US
City: REDACTED FOR PRIVACY
State: CA
Post Code: REDACTED FOR PRIVACY
Email:
Phone: REDACTED FOR PRIVACY
Note: Registration information is derived from various sources and may be inaccurate.

Domain Registrar

Name IP Address
MarkMonitor, Inc. 104.18.39.152
Security

Visitor Safety

Mature Content: Not Likely
McAfee WebAdvisor Rating: Safe
WOT Rating:
WOT Trustworthiness: 94/100
WOT Child Safety: 94/100
Note: Safety information is not guaranteed.

SSL/TLS Certificate

Issued To: www.mozorg.moz.works
Issued By: Amazon
Valid From: 22nd September, 2022
Valid To: 21st October, 2023
Subject: CN = www.mozorg.moz.works
Hash: 4089a10e
Issuer: CN = Amazon
OU = Server CA 1B
O = Amazon
S = US
Version: 2
Serial Number: 4203305106980388642640235789312125225
Serial Number (Hex): 032986F125534EB1BBE6D9A6C1B8E929
Valid From: 22nd September, 2024
Valid To: 21st October, 2024
Signature Algorithm (Short Name): RSA-SHA256
Signature Algorithm (Long Name): sha256WithRSAEncryption
Authority Key Identifier: keyid:59:A4:66:06:52:A0:7B:95:92:3C:A3:94:07:27:96:74:5B:F9:3D:D0
Extended Key Usage: TLS Web Server Authentication, TLS Web Client Authentication
CRL Distribution Points:
Full Name:
URI:http://crl.sca1b.amazontrust.com/sca1b-1.crl

Certificate Policies: Policy: 2.23.140.1.2.1

Authority Information Access: OCSP - URI:http://ocsp.sca1b.amazontrust.com
CA Issuers - URI:http://crt.sca1b.amazontrust.com/sca1b.crt

SCT List: Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : E8:3E:D0:DA:3E:F5:06:35:32:E7:57:28:BC:89:6B:C9:
03:D3:CB:D1:11:6B:EC:EB:69:E1:77:7D:6D:06:BD:6E
Timestamp : Sep 22 06:24:43.656 2022 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:45:02:20:63:2A:4E:59:BF:67:8E:85:52:83:F9:D8:
11:04:8F:82:7A:F0:0C:CC:A5:4D:B2:D9:BC:C5:14:0A:
F3:FB:BF:E6:02:21:00:D4:F1:D8:2F:6A:EF:34:44:B0:
72:C4:CD:74:D5:97:6C:7F:D8:5C:BE:3F:60:C9:8B:93:
8A:1C:0C:EE:27:5E:60
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : 35:CF:19:1B:BF:B1:6C:57:BF:0F:AD:4C:6D:42:CB:BB:
B6:27:20:26:51:EA:3F:E1:2A:EF:A8:03:C3:3B:D6:4C
Timestamp : Sep 22 06:24:43.614 2022 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:45:02:20:22:AB:7B:1E:77:89:11:F8:7A:B9:EF:A0:
59:0F:37:B2:AE:DA:81:60:39:67:2E:CB:F8:7F:E2:3F:
68:0D:7D:00:02:21:00:EF:FF:CA:A0:6F:E5:66:18:0E:
0D:B1:17:6B:5D:E9:0C:F6:1A:E2:2F:36:64:B4:8F:A9:
B5:DD:E9:5E:F1:5C:F6
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : B3:73:77:07:E1:84:50:F8:63:86:D6:05:A9:DC:11:09:
4A:79:2D:B1:67:0C:0B:87:DC:F0:03:0E:79:36:A5:9A
Timestamp : Sep 22 06:24:43.730 2022 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:45:02:20:03:FC:0F:22:1E:FC:A2:A5:AC:9A:9F:B5:
E6:81:26:5E:00:FD:D7:02:FC:6A:4B:06:26:14:2A:39:
1C:55:B4:70:02:21:00:99:1A:6A:4E:B2:D6:80:ED:AA:
13:E2:5A:E2:68:DB:8A:38:2F:CB:49:91:74:1B:8D:B6:
4F:AE:1D:A4:52:D6:66
Key Usage: Digital Signature, Key Encipherment
Basic Constraints: CA:FALSE
Subject Alternative Name: DNS:mozilla.org
DNS:www.mozilla.org
DNS:www.mozorg.moz.works
Technical

DNS Lookup

A Records

Host IP Address Class TTL
mozilla.org. 44.236.72.93 IN 3600
mozilla.org. 44.236.48.31 IN 3600
mozilla.org. 44.235.246.155 IN 3600

NS Records

Host Nameserver Class TTL
mozilla.org. ns7-66.akam.net. IN 3600
mozilla.org. ns5-65.akam.net. IN 3600
mozilla.org. ns1-240.akam.net. IN 3600
mozilla.org. ns4-64.akam.net. IN 3600

CAA Records

Domain Flags Tag Class TTL
mailto:foxsec+caaiodef@mozilla.com 0 iodef IN 3600
comodoca.com 0 issue IN 3600
sectigo.com 0 issue IN 3600
awstrust.com 0 issue IN 3600
pki.goog 0 issue IN 3600
amazonaws.com 0 issue IN 3600
letsencrypt.org 0 issue IN 3600
amazontrust.com 0 issue IN 3600
amazon.com 0 issue IN 3600
digicert.com 0 issue IN 3600

MX Records

Priority Host Server Class TTL
1 mozilla.org. aspmx.l.google.com. IN 60
5 mozilla.org. alt1.aspmx.l.google.com. IN 60
10 mozilla.org. aspmx3.googlemail.com. IN 60
5 mozilla.org. alt2.aspmx.l.google.com. IN 60

SOA Records

Domain Name Primary NS Responsible Email TTL
mozilla.org. infoblox1.private.mdc1.mozilla.com. sysadmins.mozilla.org. 3600

TXT Records

Host Value Class TTL
mozilla.org. google-site-verification=Brpe3hQpo9FlGIHMtK4ViKL60L0G8VM16nXopwVDoEU IN 60
mozilla.org. bl651d1c6hd3yhl05k0613978qyp2h83 IN 60
mozilla.org. google-site-verification=E1vBHtOW-D9IlAj-pbRM-8PrOSiPDT48lrwRlW82ysw IN 60
mozilla.org. google-site-verification=Lo_B34AJAe70BQVNF1Fo1zGGJudPmw9bLTnP2C8lV-s IN 60
mozilla.org. google-site-verification=mU3ta-ZJga-aCNg7IlaRaGYK9sDOMagHRNGVW1FSJGE IN 60
mozilla.org. yandex-verification IN 60
mozilla.org. v=spf1 IN 60
mozilla.org. bzbkzkxj2ws8gvtw6hpssfy7lv9kym88 IN 60
mozilla.org. rz8t7zvjv5frpfbjs3y5n6g5tkw7gt2q IN 60

HTTP Response Headers

HTTP-Code: HTTP/1.1 200 OK
Content-Type: text/html; charset=utf-8
Server: meinheld/1.0.2
Date: 4th January, 2023
Cache-Control: max-age=600
Expires: 4th January, 2023
Content-Length: 53635
Connection: keep-alive
X-Frame-Options: DENY
Content-Security-Policy: child-src 'self' *.mozilla.net *.mozilla.org *.mozilla.com www.googletagmanager.com www.google-analytics.com www.youtube-nocookie.com trackertest.org www.surveygizmo.com accounts.firefox.com accounts.firefox.com.cn www.youtube.com; style-src 'self' *.mozilla.net *.mozilla.org *.mozilla.com 'unsafe-inline' app.convert.com; script-src 'self' *.mozilla.net *.mozilla.org *.mozilla.com 'unsafe-inline' 'unsafe-eval' www.googletagmanager.com www.google-analytics.com tagmanager.google.com www.youtube.com s.ytimg.com cdn-3.convertexperiments.com app.convert.com data.track.convertexperiments.com 1003350.track.convertexperiments.com 1003343.track.convertexperiments.com; default-src 'self' *.mozilla.net *.mozilla.org *.mozilla.com; font-src 'self'; frame-src 'self' *.mozilla.net *.mozilla.org *.mozilla.com www.googletagmanager.com www.google-analytics.com www.youtube-nocookie.com trackertest.org www.surveygizmo.com accounts.firefox.com accounts.firefox.com.cn www.youtube.com; img-src 'self' *.mozilla.net *.mozilla.org *.mozilla.com data
X-Clacks-Overhead: GNU Terry Pratchett
X-Backend-Server: bedrock-prod-web-bf9f57887-kfnbn.iowa-a
Strict-Transport-Security: max-age=31536000
X-Content-Type-Options: nosniff
X-XSS-Protection: 1; mode=block
Referrer-Policy: strict-origin-when-cross-origin
Via: 1.1 google, 1.1 0ac640943c2918c03a0350f4e8b083a8.cloudfront.net (CloudFront)
ETag: "f00055325ce2df1ab7399a576ea06d6d"
Vary: Accept-Encoding
X-Cache: Hit from cloudfront
X-Amz-Cf-Pop: JFK50-P5
X-Amz-Cf-Id: aMC2urXbu3yWuTpiN8wEK4pmfOtsxx8GwDGiYY4lXdNpbSQXLE-Hsg==
Age: 295

Whois Lookup

Created: 24th January, 1998
Changed: 27th December, 2022
Expires: 23rd January, 2025
Registrar: MarkMonitor Inc.
Status: clientDeleteProhibited
clientTransferProhibited
clientUpdateProhibited
Nameservers: ns1-240.akam.net
ns4-64.akam.net
ns5-65.akam.net
ns7-66.akam.net
Owner Name: REDACTED FOR PRIVACY
Owner Organization: Mozilla Corporation
Owner Street: REDACTED FOR PRIVACY
Owner Post Code: REDACTED FOR PRIVACY
Owner City: REDACTED FOR PRIVACY
Owner State: CA
Owner Country: US
Owner Phone: REDACTED FOR PRIVACY
Owner Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin Post Code: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech Post Code: REDACTED FOR PRIVACY
Tech City: REDACTED FOR PRIVACY
Tech State: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Full Whois: Domain Name: mozilla.org
Registry Domain ID: 0f25052393d846e9a2b99ccfea673d75-LROR
Registrar WHOIS Server: http://whois.markmonitor.com
Registrar URL: http://www.markmonitor.com
Updated Date: 2022-12-27T09:28:30Z
Creation Date: 1998-01-24T05:00:00Z
Registry Expiry Date: 2025-01-23T05:00:00Z
Registrar: MarkMonitor Inc.
Registrar IANA ID: 292
Registrar Abuse Contact Email: abusecomplaints@markmonitor.com
Registrar Abuse Contact Phone: +1.2083895740
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: Mozilla Corporation
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: CA
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: US
Registrant Phone: REDACTED FOR PRIVACY
Registrant Phone Ext: REDACTED FOR PRIVACY
Registrant Fax: REDACTED FOR PRIVACY
Registrant Fax Ext: REDACTED FOR PRIVACY
Registrant Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Admin ID: REDACTED FOR PRIVACY
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State/Province: REDACTED FOR PRIVACY
Admin Postal Code: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Phone Ext: REDACTED FOR PRIVACY
Admin Fax: REDACTED FOR PRIVACY
Admin Fax Ext: REDACTED FOR PRIVACY
Admin Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Tech ID: REDACTED FOR PRIVACY
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech City: REDACTED FOR PRIVACY
Tech State/Province: REDACTED FOR PRIVACY
Tech Postal Code: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Phone Ext: REDACTED FOR PRIVACY
Tech Fax: REDACTED FOR PRIVACY
Tech Fax Ext: REDACTED FOR PRIVACY
Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Name Server: ns1-240.akam.net
Name Server: ns4-64.akam.net
Name Server: ns5-65.akam.net
Name Server: ns7-66.akam.net
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2023-01-04T19:02:27Z <<<

For more information on Whois status codes, please visit https://icann.org/epp

Terms of Use: Access to Public Interest Registry WHOIS information is provided to assist persons in determining the contents of a domain name registration record in the Public Interest Registry registry database. The data in this record is provided by Public Interest Registry for informational purposes only, and Public Interest Registry does not guarantee its accuracy. This service is intended only for query-based access. You agree that you will use this data only for lawful purposes and that, under no circumstances will you use this data to (a) allow, enable, or otherwise support the transmission by e-mail, telephone, or facsimile of mass unsolicited, commercial advertising or solicitations to entities other than the data recipient's own existing customers; or (b) enable high volume, automated, electronic processes that send queries or data to the systems of Registry Operator, a Registrar, or Identity Digital except as reasonably necessary to register domain names or modify existing registrations. All rights reserved. Public Interest Registry reserves the right to modify these terms at any time. By submitting this query, you agree to abide by this policy. The Registrar of Record identified in this output may have an RDDS service that can be queried for additional information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.

Nameservers

Name IP Address
ns1-240.akam.net 193.108.91.240
ns4-64.akam.net 84.53.139.64
ns5-65.akam.net 184.85.248.65
ns7-66.akam.net 96.7.49.66
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