Mozilla.org - SEO Checker

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Overview of the SEO Check
Meta information
90% 
Page quality
75% 
Page structure
58% 
Link structure
85% 
Server
68% 
External factors
100% 
SEO Score
Response time
0.20 s
File size
102.20 kB
Words
794
Media files
23
Number of links
53 internal / 34 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Internet for people, not profit — Mozilla
The length of the page title is perfect. (348 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
Mozilla is the not-for-profit behind the lightning fast Firefox browser. We put people over profit to give everyone more power online.
The length of the meta description is perfect. (802 pixels out of 1000 max pixel length)
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://www.mozilla.org/en-US/
There is a valid canonical link specified.
Language
(Somewhat important)
Language detected in text: en
Language defined in HTML: en
Server location: United States of America
The following language is defined by HTML: en
Alternate/Hreflang Links
(Somewhat important)
An URL is specified multiple times in alternate links.
Language for link pointing to page itself inaccurate
Other meta tags
(Somewhat important)
There is no rel next meta tag on this page.
There is no rel prev meta tag on this page.
Domain
(Somewhat important)
The domain is no subdomain.
The domain length is good.
The domain does not contain non-latin characters.
Page URL
(Somewhat important)
No parameters were found in the URL.
No session ID was found in the URL.
The URL does not have too many subdirectories.
Charset encoding
(Somewhat important)
The charset encoding (UTF-8) is set correctly.
Doctype
(Nice to have)
The doctype HTML 5 is set correctly.
The doctype is placed at first in the HTML code.
Favicon
(Nice to have)
The favicon is linked correctly.

Meta tags

NameValue
viewportwidth=device-width, initial-scale=1
msvalidate.01B7B177115A634927D608514DA17B2574
google-site-verificationU9a6gH32vLIykvntaDToj-ytYhlZ1AfAgVEKstixQIE
descriptionMozilla is the not-for-profit behind the lightning fast Firefox browser. We put people over profit to give everyone more power online.
langen
twitter:cardsummary
twitter:site@mozilla
twitter:domainmozilla.org
twitter:app:name:googleplayFirefox
twitter:app:id:googleplayorg.mozilla.firefox
twitter:app:name:iphoneFirefox
twitter:app:id:iphone989804926
twitter:app:name:ipadFirefox
twitter:app:id:ipad989804926
fb:page_id262134952380
og:typewebsite
og:site_nameMozilla
og:localeen_US
og:urlhttps://www.mozilla.org/en-US/
og:imagehttps://www.mozilla.org/media/img/mozorg/mozilla-256.4720741d4108.jpg
og:titleInternet for people, not profit
og:descriptionMozilla is the not-for-profit behind the lightning fast Firefox browser. We put people over profit to give everyone more power online.
charsetutf-8

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Page quality

Content
(Critically important)
This page contains 794 words. That's ok.
29.7% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
Words from the H1 heading are used in the page content.
The page contains a listing, which indicates a good text layout.
7 paragraphs were found on this page.
The text content is perfect.
No placeholders texts or images were found.
There are no duplicates on the site.
The average number of words per sentence of 14.08 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
This page loads 11 JavaScript files. This may affect the load time negatively.
A viewport "width=device-width, initial-scale=1" is provided.
At least one Apple touch icon is specified.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 16 tags for this page.
Image SEO
(Somewhat important)
22 images have no alt attribute. The content of alt attributes is used by search engines.
Social Networks
(Nice to have)
There are only a few social sharing widgets on the page. Make your website popular in social networks with social sharing widgets.
Additional markup
(Nice to have)
No additional page markup was found.
HTTPS
(Somewhat important)
This website uses HTTPS to protect privacy and integrity of the exchanged data.
All included files are also transferred via HTTPS.

Media list

URLAlt attributeTitle
...s/mozilla/logo-word-hor.e20791bb4dd4.svgMozilla
...os/firefox/browser/logo.eb1324e44442.svgNo alt attribute provided
...os/firefox/browser/logo.eb1324e44442.svgNo alt attribute provided
...os/firefox/browser/logo.eb1324e44442.svgNo alt attribute provided
...efox/browser/focus/logo.aac3e33175cb.svgNo alt attribute provided
...ns/icon-privacy-promise.eee1662acb03.svgNo alt attribute provided
...os/firefox/monitor/logo.d97e5516f9e6.svgNo alt attribute provided
...l/img/logos/pocket/logo.17446bc33a5d.svgNo alt attribute provided
...ogos/firefox/relay/logo.683083c53b93.svgNo alt attribute provided
...nav/icons/icon-fpn-beta.9e7bc3a29f6e.svgNo alt attribute provided
...nav/icons/icon-mdn-plus.f1d87dae70d0.svgNo alt attribute provided
...icons/icon-mozilla-hubs.68cdfe62681b.svgNo alt attribute provided
.../browser/developer/logo.41d42822c8fb.svgNo alt attribute provided
...icons/icon-common-voice.127fa3f5dcb0.svgNo alt attribute provided
.../2023/vpn-beautiful-700.8c42a21f7fa1.jpgNo alt attribute provided
...re-power-high-res.5e9e07e1024c.png?w=800No alt attribute provided
...398872f0efe7ccdf232/vpn-laptop.png?w=800No alt attribute provided
...9adf937c7bfbbb/Firefox_Asset_2.png?w=800No alt attribute provided
...89d7299710d58d3/pocket-rainbow.jpg?w=800No alt attribute provided
...83d56e9b9def1/Relay_-_Asset_1_.png?w=800No alt attribute provided
...internet-high-res.56fc2c64c968.png?w=800No alt attribute provided
...2018/newsletter-graphic.3debb24fbacc.pngNo alt attribute provided
...ers/mobile/app-icon-512.782bf4aa77fd.jpgNo alt attribute provided

Page structure

H1 heading
(Critically important)
Internet for people, not profit
The H1 heading is perfect.
Headings
(Important)
There are 46 headings on the page. The amount of headings should be in a more proper relation to the amount of text.

Heading structure

Heading levelContent
H1 Internet for people, not profit
H2 Your privacy is a beautiful thing
H2 More power to you.
H2 Featured Mozilla Products
H2 Protection for your whole device, on every device
H2 Firefox is for (internet) lovers
H2 Welcome to the web, sunny side up
H2 Un-spam your life with Firefox Relay
H2 Support a healthy internet.
H2 Privacy over profit
H2 A Firefox Account protects you rather than profits off you.
H2 Firefox: Private, Safe Browser
H3 Love the Web
H3 Thanks!
H4 Firefox for Desktop
H4 Firefox for Android
H4 Firefox for iOS
H4 Firefox Focus
H4 Privacy Promise
H4 Firefox Blog
H4 Release Notes
H4 Firefox Monitor
H4 Facebook Container
H4 Pocket
H4 Mozilla VPN
H4 Product Promise
H4 Firefox Relay
H4 Firefox Private Network (beta)
H4 MDN Plus
H4 Mozilla Manifesto
H4 Mozilla Foundation
H4 Get involved
H4 Stories
H4 Leadership
H4 Careers
H4 Mozilla Blog
H4 Mozilla Hubs
H4 Firefox Developer Edition
H4 MDN Web Docs
H4 Common Voice
H5 Company
H5 Resources
H5 Support
H5 Developers
H5 Follow @Mozilla
H5 Follow @Firefox
Some anchor texts are used more than once.
The number of internal links is ok.
None of the anchor texts is too long.
All internal links are not using dynamic parameters.
There are too many external links (34) on this page.

Found links on this page

LinkAttributesAnchor text
https://www.mozilla.org/en-US/IMG-ALT Mozilla
/firefox/download/thanks/Download Firefox
/en-US/privacy/firefox/Firefox Privacy Notice
/en-US/products/vpn/Get Mozilla VPN
/en-US/firefox/browsers/Firefox Browsers
/en-US/firefox/new/Firefox for Desktop Get the not-for-profit-backed browser on Windows, Mac or Linux.
/en-US/firefox/browsers/mobile...Firefox for Android Get the customizable mobile browser for Android smartphones.
/en-US/firefox/browsers/mobile...Firefox for iOS Get the mobile browser for your iPhone or iPad.
/en-US/firefox/browsers/mobile...Firefox Focus Simply private mobile browsing.
/en-US/firefox/privacy/Privacy Promise Learn how Firefox treats your data with respect.
https://blog.mozilla.org/firef...External Subdomain Firefox Blog Read about new Firefox features and ways to stay safe online.
/firefox/109.0.1/releasenotes/Release Notes Get the details on the latest Firefox updates.
/en-US/firefox/browsers/View all Firefox Browsers
/en-US/firefox/products/Products
https://monitor.firefox.com/?u...External Subdomain Firefox Monitor See if your email has appeared in a company’s data breach.
/en-US/firefox/facebookcontainer/Facebook Container Help prevent Facebook from collecting your data outside their site.
https://getpocket.com/firefox_...External Pocket Save and discover the best stories from across the web.
/en-US/products/vpn/Mozilla VPN Get protection beyond your browser, on all your devices.
/en-US/firefox/privacy/products/Product Promise Learn how each Firefox product protects and respects your data.
https://relay.firefox.com/?utm...External Subdomain Firefox Relay Sign up for new accounts without handing over your email address.
https://fpn.firefox.com/?utm_s...External Subdomain Firefox Private Network (beta) Protect your browser’s connection to the internet.
https://developer.mozilla.org/...External Subdomain MDN Plus New features and tools for a customized MDN experience
/en-US/firefox/products/View all Products
/en-US/about/Who We Are
/en-US/about/manifesto/Mozilla Manifesto Learn about the values and principles that guide our mission.
https://foundation.mozilla.org...External Subdomain Mozilla Foundation Meet the not-for-profit behind Firefox that stands for a better web.
/en-US/contribute/Get involved Join the fight for a healthy internet.
/en-US/stories/Stories Stories about how our people and products are changing the world for the better.
/en-US/about/leadership/Leadership Meet the team that’s building technology for a better internet.
/en-US/careers/Careers Work for a mission-driven organization that makes people-first products.
https://blog.mozilla.org/?utm_...External Subdomain Mozilla Blog Learn about Mozilla and the issues that matter to us.
/en-US/about/More About Mozilla
https://labs.mozilla.org/?utm_...External Subdomain Innovation
https://hubs.mozilla.com/?utm_...External Subdomain Mozilla Hubs Gather in this interactive, online, multi-dimensional social space.
/en-US/firefox/developer/Firefox Developer Edition Get the Firefox browser built just for developers.
https://developer.mozilla.org/...External Subdomain MDN Web Docs Check out the home for web developer resources.
https://commonvoice.mozilla.or...External Subdomain Common Voice Donate your voice so the future of the web can hear everyone.
/en-US/products/vpn/Text duplicate Get Mozilla VPN
/en-US/about/Learn more about us
/products/vpn/Text duplicate Get Mozilla VPN
/firefox/browsers/Explore Firefox
https://getpocket.com/?utm_sou...External Try Pocket
https://relay.firefox.com/?utm...External Subdomain Try Relay
https://foundation.mozilla.org...External Subdomain Visit the Mozilla Foundation
/en-US/privacy/websites/this Privacy Notice
/firefox/download/thanks/Text duplicate Download Firefox
/en-US/privacy/firefox/Text duplicate Firefox Privacy Notice
/en-US/firefox/accounts/Learn more
https://www.mozilla.org/en-US/Text duplicate Mozilla
/en-US/about/manifesto/Mozilla Manifesto
https://blog.mozilla.org/press...External Subdomain Press Center
https://blog.mozilla.org/?utm_...External Subdomain Corporate Blog
/en-US/careers/Careers
/en-US/contact/Contact
https://donate.mozilla.org/?pr...External Subdomain Donate
/en-US/privacy/Privacy Hub
/en-US/firefox/browsers/compare/Browser Comparison
https://mozilla.design/?utm_so...External Subdomain Brand Standards
https://support.mozilla.org/?u...External Subdomain Product Help
https://bugzilla.mozilla.org/?...External Subdomain File a Bug
/en-US/firefox/developer/Developer Edition
/en-US/firefox/channel/desktop/Beta
/en-US/firefox/channel/android/Beta for Android
/en-US/firefox/channel/desktop/Nightly
/en-US/firefox/channel/android/Nightly for Android
/en-US/firefox/enterprise/Enterprise
https://firefox-source-docs.mo...External Subdomain Tools
https://twitter.com/mozillaExternal Twitter (@mozilla)
https://mastodon.social/@MozillaExternal Subdomain Mastodon (@mozilla)
https://www.instagram.com/mozi...External Instagram (@mozilla)
https://www.linkedin.com/compa...External LinkedIn (@mozilla)
https://www.tiktok.com/@mozillaExternal TikTok (@mozilla)
https://open.spotify.com/show/...External Subdomain Spotify (@mozilla)
https://twitter.com/firefoxExternal Twitter (@firefox)
https://www.instagram.com/fire...External Instagram (@firefox)
https://www.youtube.com/user/f...External YouTube (@firefoxchannel)
/en-US/locales/Language
/en-US/privacy/websites/Website Privacy Notice
/en-US/privacy/websites/Cookies
/en-US/about/legal/Legal
/en-US/about/governance/polici...Community Participation Guidelines
/en-US/about/this-site/About this site
https://www.mozilla.org/en-US/Mozilla Corporation’s
https://foundation.mozilla.org...External Subdomain Mozilla Foundation
/en-US/foundation/licensing/we...Creative Commons license
https://app.adjust.com/2uo1qc?...External Subdomain View
https://app.adjust.com/2uo1qc?...External Subdomain Text duplicate View

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.mozilla.org/en-US/"
HTTP header
(Important)
No X-Powered HTTP header is sent.
This page uses GZip for compressed data transmission.
Performance
(Somewhat important)
This page loads 9 CSS files. This may affect the page load time negatively.
This page loads 11 JavaScript files. This may affect the load time negatively.
The page response time is excellent with 0.20 seconds.
The file size of the HTML document is fine (102 kB).

HTTP Response Header

NameValue
content-typetext/html; charset=utf-8
transfer-encodingchunked
connectionkeep-alive
dateThu, 02 Feb 2023 05:07:03 GMT
x-frame-optionsDENY
content-security-policyimg-src 'self' *.mozilla.net *.mozilla.org *.mozilla.com data: mozilla.org www.googletagmanager.com www.google-analytics.com adservice.google.com adservice.google.de adservice.google.dk creativecommons.org cdn-3.convertexperiments.com logs.convertexperiments.com images.ctfassets.net ad.doubleclick.net; 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; 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; 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; connect-src 'self' *.mozilla.net *.mozilla.org *.mozilla.com www.googletagmanager.com www.google-analytics.com region1.google-analytics.com logs.convertexperiments.com 1003350.metrics.convertexperiments.com 1003343.metrics.convertexperiments.com sentry.prod.mozaws.net o1069899.sentry.io o1069899.ingest.sentry.io https://accounts.firefox.com/ stage.cjms.nonprod.cloudops.mozgcp.net cjms.services.mozilla.com; font-src 'self'; default-src 'self' *.mozilla.net *.mozilla.org *.mozilla.com; style-src 'self' *.mozilla.net *.mozilla.org *.mozilla.com 'unsafe-inline' app.convert.com
cache-controlmax-age=600
expiresThu, 02 Feb 2023 05:17:03 GMT
x-clacks-overheadGNU Terry Pratchett
x-backend-serverbedrock-prod-web-595cc48898-bxzhj.mozmeao-fr
strict-transport-securitymax-age=15724800; includeSubDomains
x-content-type-optionsnosniff
x-xss-protection1; mode=block
referrer-policystrict-origin-when-cross-origin
content-encodinggzip
etagW/"78b8e3b0f54d3d74e2f99c2c5f82f7f9"
varyAccept-Encoding
x-cacheMiss from cloudfront
via1.1 2d1e1e8dc0f3eb7773ec9d89a7d50ce2.cloudfront.net (CloudFront)
x-amz-cf-popFRA53-C1
x-amz-cf-idvi0cXwxf4iyUBT7rrC-DBGztxrSW8t_H2Ijjh-5xwRspUnxO3bYA6g==
statuscode200
http_versionHTTP/1.1

External factors

Blacklists
(Nice to have)
This website is not classified "for adult only".
This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 5,018 referring domains.
This page has 375,287 backlinks.
This page has backlinks from 3,832 different ip addresses.
Facebook popularity
(Somewhat important)
The page has 0 shares, comments and likes on Facebook.
Listed on Webwiki
(Nice to have)
This website is listed on Webwiki.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

user-agent: *
disallow: /*/firstrun/
disallow: /*/newsletter/existing/
disallow: /*/whatsnew/
disallow: /*/etc/
Sitemap: https://www.mozilla.org/sitemap.xml

Similar sites

Search preview

www.mozilla.org › en-US
Internet for people, not profit — Mozilla
Mozilla is the not-for-profit behind the lightning fast Firefox browser. We put people over profit to give everyone more power online.

Most important keywords

Following keywords were found. You can check the keyword optimization of this page for each keyword.

KeywordResultRecheck
profit77%Check
profit Mozilla75%Check
Mozilla74%Check
people73%Check
internet68%Check
Mozilla Firefox64%Check
Mozilla VPN58%Check
Get Mozilla57%Check
Mozilla Foundation57%Check
Firefox56%Check
Show more keywords and terms

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