About.readthedocs.com - SEO Checker

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Overview of the SEO Check
Meta information
75% 
Page quality
81% 
Page structure
100% 
Link structure
86% 
Server
100% 
External factors
100% 
SEO Score
Response time
0.28 s
File size
35.20 kB
Words
630
Media files
11
Number of links
27 internal / 31 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Full featured documentation deployment platform - Read the Docs
The page title should be shorter than 580 pixels. It is 589 pixels long. Optimize title
There are no duplicate words in the title
Meta description
(Critically important)
Read the Docs is a documentation building and hosting platform aimed at helping developers creating documentation from code with versioned documentation, integrated search, pull request previews and more.
The meta description is too long: 1293 pixels from max. 1000 pixels. Optimize description
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
No canonical link is specified.
Language
(Somewhat important)
Language detected in text: en
Language defined in HTML: en
Server location: Canada
The following language is defined by HTML: en
Alternate/Hreflang Links
(Somewhat important)
There are no alternate links specified on this page.
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)
This page is hosted on a subdomain. Use a top level domain for better SEO results.
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
generatorPelican
viewportwidth=device-width, initial-scale=1
descriptionRead the Docs is a documentation building and hosting platform aimed at helping developers creating documentation from code with versioned documentation, integrated search, pull request previews and more.
authorRead the Docs, Inc
readthedocs-project-slugreadthedocs-about
readthedocs-version-sluglatest
readthedocs-resolver-filename/
readthedocs-http-status200
langen
twitter:titleFull featured documentation deployment platform
twitter:descriptionRead the Docs is a documentation building and hosting platform aimed at helping developers creating documentation from code with versioned documentation, integrated search, pull request previews and more.
twitter:image/images/logo-opengraph.png
og:site_nameRead the Docs
og:typearticle
og:titleFull featured documentation deployment platform
og:descriptionRead the Docs is a documentation building and hosting platform aimed at helping developers creating documentation from code with versioned documentation, integrated search, pull request previews and more.
og:image/images/logo-opengraph.png
charsetutf-8

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Page quality

Content
(Critically important)
Some words from the page title are not used within the pages content
This page contains 630 words. That's ok.
27.1% of the text are stop words.
Words from the H1 heading are used in the page content.
11 paragraphs were found on this page.
No placeholders texts or images were found.
There are no duplicates on the site.
The average number of words per sentence of 13 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
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 13 tags for this page.
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)
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
/theme/img/logo-wordmark-dark.svgRead the Docs logo
/images/homepage.pngA terminal executing Git commands to build multiple versions of documentation
/images/amd-logo.svgAMD logo
/images/canonical-logo.svgCanonical logo
/images/anaconda-logo.svgAnaconda logo
/images/acquia-logo.svgAcquia logo
/images/flask-logo.pngFlask logo
/images/jupyter-logo.pngJupyter logo
/images/godot-logo.pngGodot Engine logo
https://github.com/Zeitsperre.pngTrevor James Smith, Developer, Ouranos
https://github.com/astrojuanlu.pngJuan Luis Cano Rodríguez, Developer Advocate, Kedro

Page structure

H1 heading
(Critically important)
Docs as Code for everyone
The H1 heading is perfect.
Headings
(Important)
The heading structure is perfect.

Heading structure

Heading levelContent
H1 Docs as Code for everyone
H2 Automatic deploy previews
H2 Ideal developer experience
H2 Work privately or publicly
H2 Upgrade your documentation with Read the Docs
H3 Trusted by businesses worldwide since 2010
H3 Features
H3 Supports any doc tool
H3 Integrated search
H3 Pull request previews
H3 Versioned docs
H3 Private repository support Paid plan feature
H3 Single-Sign On Paid plan feature
H3 Join thousands of happy users
H4 Stay updated
H4 Learn more
H4 Product
H4 Company
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 (31) on this page.

Found links on this page

LinkAttributesAnchor text
https://about.readthedocs.com/Subdomain IMG-ALT Read the Docs logo
https://app.readthedocs.org/da...External Subdomain URL anchor text
Read the Docs Community https://readthedocs.org
https://app.readthedocs.com/da...External Subdomain URL anchor text
Read the Docs Business https://readthedocs.com
/choosing-a-platform/Choosing a platform
/features/Subdomain Product
/pricing/Subdomain Anchor Business plans
/pricing/Subdomain Anchor Community plans
/pricing/enterprise/Subdomain Enterprise plans
/blog/Subdomain Blog
http://status.readthedocs.com/New window External Subdomain Status
https://docs.readthedocs.io/pa...New window External Subdomain Support
https://docs.readthedocs.io/New window External Subdomain Documentation
https://docs.readthedocs.io/pa...New window External Subdomain Tutorial
/features/Subdomain Text duplicate Product
/pricing/Subdomain Anchor Text duplicate Business plans
/pricing/Subdomain Anchor Text duplicate Community plans
/pricing/enterprise/Subdomain Text duplicate Enterprise plans
/blog/Subdomain Text duplicate Blog
http://status.readthedocs.com/New window External Subdomain Text duplicate Status
https://docs.readthedocs.io/pa...New window External Subdomain Text duplicate Support
https://docs.readthedocs.io/New window External Subdomain Text duplicate Documentation
https://docs.readthedocs.io/pa...New window External Subdomain Text duplicate Tutorial
https://app.readthedocs.org/da...External Subdomain Text duplicate URL anchor text
Read the Docs Community https://readthedocs.org
https://app.readthedocs.com/da...External Subdomain Text duplicate URL anchor text
Read the Docs Business https://readthedocs.com
/choosing-a-platform/Text duplicate Choosing a platform
https://app.readthedocs.org/ac...External Subdomain Sign up
https://app.readthedocs.com/ac...External Subdomain Text duplicate Sign up
/choosing-a-platform/Text duplicate Choosing a platform
/features/Explore all the features
/features/Explore features
/tools/sphinx/Sphinx
/tools/mkdocs/MkDocs
/tools/jupyter-book/Jupyter Book
/features/Discover all our features
https://flask.palletsprojects....External Subdomain Flask Web Framework Flask is a Python web framework built with a small core and easy-to-extend philosophy.
IMG-ALT Flask logo
https://docs.jupyter.org/External Subdomain Jupyter Data Science Environment Jupyter Notebook is a web-based interactive computational environment for creating notebook documents.
IMG-ALT Jupyter logo
https://docs.godotengine.org/External Subdomain Godot Engine Game Engine Godot Engine is a free and open source community-driven 2D and 3D game engine.
IMG-ALT Godot Engine logo
https://github.com/hydrologie/...New window External Anchor Trevor James Smith Developer, Ouranos
IMG-ALT Trevor James Smith, Developer, Ouranos
https://fosstodon.org/@kedro@s...New window External Juan Luis Cano Rodríguez Developer Advocate, Kedro
IMG-ALT Juan Luis Cano Rodríguez, Developer Advocate, Kedro
https://about.readthedocs.org/...External Subdomain Text duplicate Blog
https://landing.mailerlite.com...External Subdomain Newsletter
https://status.readthedocs.com/External Subdomain Text duplicate Status
https://github.com/readthedocs/External No Text
https://twitter.com/readthedocsExternal No Text
https://fosstodon.org/@readthe...External No Text
https://docs.readthedocs.io/External Subdomain Text duplicate Documentation
https://docs.readthedocs.io/pa...External Subdomain Text duplicate Tutorial
https://docs.readthedocs.io/pa...External Subdomain Configure your project
/tools/Popular documentation tools
/comparisons/Compare to other platforms
/features/Features
/pricing/Pricing
/privacy-policyPrivacy Policy
/terms-of-service/Terms of Service
/company/About us
https://docs.readthedocs.com/p...External Subdomain Text duplicate Support
https://www.ethicalads.io/adve...External Subdomain Advertise with Us
https://dev.readthedocs.io/pag...External Subdomain Contribute

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://about.readthedocs.com/"
HTTP header
(Important)
No X-Powered HTTP header is sent.
The web server transmits the web page (HTML) in compressed form.
Performance
(Somewhat important)
The page response time is excellent with 0.28 seconds.
The file size of the HTML document is fine (35 kB).

HTTP Response Header

NameValue
dateWed, 06 Aug 2025 11:09:23 GMT
content-typetext/html; charset=utf-8
cf-ray96ae14ebeba40340-CDG
cf-cache-statusHIT
access-control-allow-origin*
age6197
cache-controlmax-age=1200
content-encodinggzip
etagW/"88a7fa47b322fe8acecaf4408b3a1dbf"
last-modifiedThu, 26 Jun 2025 05:56:21 GMT
varyAccept-Encoding
access-control-allow-methodsHEAD, OPTIONS, GET
cdn-cache-controlpublic
referrer-policyno-referrer-when-downgrade
x-amz-id-2dpBU3RN3UCMSMkdEEA7dWt0dudHgwmllHUBrqtDxdXVkHxVoTC4IiCyXM4rj9Jp3SceZswYYw94=
x-amz-meta-mtime1750917375.403517008
x-amz-request-idK8D2TEYZKJ8W1KRB
x-amz-server-side-encryptionAES256
x-backendweb-i-0bc5b7ec0bbcb1a6b
x-content-type-optionsnosniff
x-rtd-domainabout.readthedocs.com
x-rtd-force-addonstrue
x-rtd-path/proxito/html/readthedocs-about/latest/index.html
x-rtd-projectreadthedocs-about
x-rtd-project-methodcustom_domain
x-rtd-resolver-filename/
x-rtd-versionlatest
x-rtd-version-methodpath
x-servedNginx-Proxito-Sendfile
set-cookie155 Characters
servercloudflare
alt-svch3=":443"; ma=86400
statuscode200
http_versionHTTP/2

External factors

This website has excellent links from other websites.
This page has backlinks from 150 referring domains.
This page has 374 backlinks.
This page has backlinks from 131 different ip addresses.

Links from Wikipedia

No links from Wikipedia were found.

Robots.txt

# This robots.txt file is autogenerated by Read the Docs.
# It controls the crawling and indexing of your documentation by search engines.
#
# You can learn more about robots.txt, including how to customize it, in our documentation:
#
# * Our documentation on Robots.txt: https://docs.readthedocs.com/platform/stable/reference/robots.html
# * Our guide about SEO techniques: https://docs.readthedocs.com/platform/stable/guides/technical-docs-seo-guide.html

User-agent: *

Disallow: # Allow everything

Sitemap: https://about.readthedocs.com/sitemap.xml

Similar sites

Search preview

about.readthedocs.com
Full featured documentation deployment platform - Read the Docs
Read the Docs is a documentation building and hosting platform aimed at helping developers creating documentation from code with versioned documentation, integrated search, pull request previews and more.

Most important keywords

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

KeywordResultRecheck
Docs96%Check
Read the Docs85%Check
Docs as78%Check
Read76%Check
Code66%Check
GitHub or64%Check
Documentation63%Check
versioned documentation57%Check
platform56%Check
previews54%Check
Show more keywords and terms

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