- SEO Checker

Overview of the SEO Check
Meta information
Page quality
Page structure
Link structure
External factors
SEO Score
Response time
0.21 s
File size
30.50 kB
Media files
Number of links
79 internal / 35 external

Task list of SEO Improvements

Meta specifications

(Critically important)
The GNU Operating System and the Free Software Movement
The length of the page title is perfect. (559 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
The meta description is missing.
(Critically important)
There are no problems in accessing the website.
Canonical URL
No canonical link is specified.
(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)
The alternate link to the page itself is missing.
An alternate link incorrectly contains an URL with a relative path.
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.
(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 character encoding is not specified in the HTTP header.
The charset encoding (UTF-8) is set correctly.
(Nice to have)
The doctype HTML 5 is set correctly.
The doctype is placed at first in the HTML code.
(Nice to have)
The favicon is linked correctly.

Meta tags

viewportwidth=device-width, initial-scale=1
content-typetext/html; charset=utf-8
KeywordsGNU, FSF, Free Software Foundation, Linux, Emacs, GCC, Unix, Free Software, Libre Software, Operating System, GNU Kernel, GNU Hurd
DescriptionSince 1983, developing the free Unix style operating system GNU, so that computer users can have the freedom to share and improve the software they use.

Test up to 1.000 webpages of with our free plan!

Sign Up Free
No trial. It's just free!

Page quality

(Critically important)
This page contains 1056 words. That's ok.
37.2% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
The page contains a listing, which indicates a good text layout.
24 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 15.35 words is good.
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
No Apple touch icon is specified.
A viewport "width=device-width, initial-scale=1" is provided.
This page does not require any JavaScript files.
Bold and strong tags
(Somewhat important)
Empty bold or strong tags were found on this page.
Some tags are too long. With 112 characters this one is longer than 70 characters:
"free software means the users have the freedom to run, copy, distribute, study, change and improve the..."
Image SEO
(Somewhat important)
Alt text (alternative text) is correctly used on all found images.
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)
This page uses Google authorship information without an image.
(Somewhat important)
The HTTPS protocol for secure data transmission is not used.

Media list

URLAlt attributeTitle
/graphics/heckert_gnu.transp.small.png [A GNU head] 
/graphics/icons/search.png [Search] 
/graphics/icons/translations.png [Languages] 
/distros/screenshots/trisquel10-mate.jpg [Screenshot of Trisquel 10 with MATE desktop] 
/distros/screenshots/dragora-ice-thumb.jpg [Screenshot of Dragora 3.0-beta1 with IceWM window manager] 
...tros/screenshots/guixSD-gnome3-thumb.jpg [Screenshot of Guix 0.15 with GNOME 3 desktop] 
/distros/screenshots/hyperbola-i3-thumb.jpg [Screenshot of Hyperbola 0.3 with i3 window manager] 
.../screenshots/parabola2020-lxde-thumb.jpg [Screenshot of Parabola 2020 with LXDE desktop] 
/distros/screenshots/gnome3-thumb.jpg [Screenshot of PureOS 8 with GNOME 3 desktop] 
...os/screenshots/trisquel10-mate-thumb.jpg [Screenshot of Trisquel 10 with MATE desktop] Feed
/graphics/fsf-logo-notext-small.png [FSF logo] 
Video URLWidthHeight

Page structure

H1 heading
(Critically important)
There is no H1 heading specified.
The structure of headings is missing one or more levels. Do not skip heading levels.

Heading structure

Heading levelContent
H2 What is GNU?
H2 What is the Free Software Movement?
H2 What is Free Software?
H2 More about GNU
H3 Planet GNU RSS Feed
H3 Take Action
H4 GNU Source Release Collection
Some internal links have dynamic parameters. All internal URLs, which are not marked as nofollow, should not contain dynamic parameters.
The number of internal links is ok.
Every linktext is unique.
None of the anchor texts is too long.
There are too many external links (35) on this page.
LinkAttributesAnchor text Skip to main text Free Software Supporter JOIN THE FSF Operating System
IMG-ALT [A GNU head] Free Software Foundation
/cgi-bin/estseek.cgiIMG-ALT [Search] IMG-ALT [Languages] Site navigation
A-TITLE More... Skip GNU
/proprietary/proprietary.htmlMALWARE GNU
/graphics/graphics.htmlGNU ART
/server/sitemap.htmlSITEMAP Fight to Repair: A video from the FSF
/philosophy/free-sw.htmlfree software
/distros/free-distros.htmlinstallable versions of GNU More about GNU below
/distros/free-distros.htmlTry GNU/Linux Subdomain IMG-ALT [Screenshot of Trisquel 10 with MATE desktop] Subdomain Trisquel 10 MATE LibreOffice
/home.html?distro=dragoraIMG-ALT [Screenshot of Dragora 3.0-beta1 with IceWM window manager]
/home.html?distro=guixIMG-ALT [Screenshot of Guix 0.15 with GNOME 3 desktop]
/home.html?distro=hyperbolaIMG-ALT [Screenshot of Hyperbola 0.3 with i3 window manager]
/home.html?distro=parabolaIMG-ALT [Screenshot of Parabola 2020 with LXDE desktop]
/home.html?distro=pureosIMG-ALT [Screenshot of PureOS 8 with GNOME 3 desktop]
/home.html?distro=trisquelText duplicate IMG-ALT [Screenshot of Trisquel 10 with MATE desktop] Try parts of GNU the video explanation
/philosophy/free-sw.htmlfour essential freedoms
/philosophy/free-software-even...even more important now the Free Software Foundation's web site you can help packages
/pronunciation/pronunciation.html“GNU” is pronounced g'noo
/gnu/linux-and-gnu.htmlGNU/Linux operating system
/gnu/gnu-linux-faq.htmlcall it “Linux” by mistake
/software/hurd/hurd.htmlGNU Hurd information Audio recording
/philosophy/kind-communication...GNU Kind Communications Guidelines announcement update Planet GNU IMG-ALT RSS Feed The History of GNU Hackers getting married libiconv 1.17 released Support current FSF campaigns Sign the petition for freedom in the classroom Join the Copilot Watch Group
/server/takeaction.htmlMore action items
/help/priority-projects.htmlGNU high priority enhancement projects
/help/music-subtraction.htmlFree program to subtract background music long-term high priority projects
/server/takeaction.htmlmaintain a GNU package
/software/recent-releases.htmlRecent GNU releases
/manual/blurbs.htmlShort descriptions for all GNU packages Source Release Collection
/manual/manual.htmldoc BACK TO TOP
/server/select-language.html?c...Nofollow Set languageñolفارسیçais日本語
/home.zh-tw.html繁體中文 BACK TO TOP ▲ IMG-ALT [FSF logo] JOIN DONATE SHOP FSF Europe Latin America India ways to contact
/server/standards/README.trans...Translations README Text duplicate Free Software Foundation Creative Commons Attribution-NoDerivatives 4.0 International License Copyright Infringement Notification

Server configuration

HTTP redirects
(Critically important)
The checked page does not redirect to another URL.
HTTP header
The web server version is sent within the HTTP header.
No X-Powered HTTP header is sent.
This page uses GZip for compressed data transmission.
(Somewhat important)
The page response time is excellent with 0.21 seconds.
This page only loads 3 CSS files. That's ok.
This page does not require any JavaScript files.
The file size of the HTML document is fine (31 kB).

HTTP Response Header

dateSun, 22 May 2022 13:25:58 GMT
strict-transport-securitymax-age=63072000; includeSubDomains; preload
expiresSun, 22 May 2022 13:25:58 GMT

External factors

(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 275,707 referring domains.
This page has 541,985,721 backlinks.
This page has backlinks from 157,547 different ip addresses.
Facebook popularity
(Somewhat important)
The page has 4796 shares, comments and likes on Facebook.
Listed on Webwiki
(Nice to have)
This website is listed on Webwiki.


# robots.txt for

User-agent: *
Crawl-delay: 2
Disallow: /private/
Disallow: /savannah-checkouts/
Disallow: /server/trans-map.html

# RT #1298215.
User-agent: *
Crawl-delay: 4
Disallow: /server/trans-map.html

# RT #1298215.
User-agent: *
Crawl-delay: 4
Disallow: /server/select-language.html

# RT #1638325.
User-agent: *
Crawl-delay: 4
Disallow: */CVS/
Disallow: */po/
Disallow: /prep/gnumaint/
Disallow: /prep/wrappers-and-scripts/
Disallow: /proprietary/workshop/
Disallow: /server/banners/
Disallow: /server/gnun/
Disallow: /server/source/
Disallow: /server/staging/
Disallow: /server/body-include*
Disallow: /server/bottom-notes*
Disallow: /server/footer*
Disallow: /server/fs-gang*
Disallow: /server/generic*
Disallow: /server/header*
Disallow: /server/head-include*
Disallow: /server/html5-header*
Disallow: /server/html5-head-include*
Disallow: /server/include-file-list*
Disallow: /server/outdated*
Disallow: /server/top-addendum*
Disallow: /software/gnun/linc/
Disallow: /software/gnun/proofread/
Disallow: /software/gnun/reports/
Disallow: /software/gnun/test/


Most important keywords

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

Free Software59%Check
Free Software Movement59%Check
GNU Operating System56%Check
GNU packages54%Check
GNU Linux54%Check
Free Software Foundation54%Check

Test up to 1.000 webpages of with our free plan!

Sign Up Free
No trial. It's just free!

Cookie Policy

We use cookies to make our site work and also for analytics and advertising purposes. You can enable or disable optional cookies as desired. See the following links for more information.

We need these so the site can function properly

So we can better understand how visitors use our website

So we can serve you tailored ads and promotions