Docker.com - SEO Checker

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Overview of the SEO Check
Meta information
97% 
Page quality
98% 
Page structure
55% 
Link structure
91% 
Server
100% 
External factors
100% 
SEO Score
Response time
0.09 s
File size
303.60 kB
Words
1419
Media files
48
Number of links
105 internal / 26 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Docker: Accelerated Container Application Development
The length of the page title is perfect. (500 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
Docker is a platform designed to help developers build, share, and run container applications. We handle the tedious setup, so you can focus on the code.
The length of the meta description is perfect. (944 pixels out of 1000 max pixel length)
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://www.docker.com/
There is a valid canonical link specified.
Language
(Somewhat important)
Language detected in text: en
Language defined in HTML: en-us
Server location: United States of America
The following language is defined by HTML: en-us
Alternate/Hreflang Links
(Somewhat important)
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
descriptionDocker is a platform designed to help developers build, share, and run container applications. We handle the tedious setup, so you can focus on the code.
robotsfollow, index, max-snippet:-1, max-video-preview:-1, max-image-preview:large
google-site-verificationYfGPdVbVSIyT3DPbKeX-y26z0JJr3lT05fLYNLLmGYM
msvalidate.01951B8D4C51CC195CD8EDE20FA9B2B986
generatorWordPress 6.7.1
msapplication-TileImagehttps://www.docker.com/app/uploads/2024/02/cropped-docker-logo-favicon-270x270.png
article:published_time2025-04-09T11:34:04-07:00
article:modified_time2025-07-10T10:44:03-07:00
langen-us
twitter:cardsummary_large_image
twitter:titleDocker: Accelerated Container Application Development
twitter:descriptionDocker is a platform designed to help developers build, share, and run container applications. We handle the tedious setup, so you can focus on the code.
twitter:site@Docker
twitter:creator@Docker
twitter:imagehttps://www.docker.com/app/uploads/2023/06/meta-image-homepage-1110x580.png
twitter:label1Written by
twitter:data1Simeon Ratliff
twitter:label2Time to read
twitter:data2Less than a minute
og:localeen_US
og:typewebsite
og:titleDocker: Accelerated Container Application Development
og:descriptionDocker is a platform designed to help developers build, share, and run container applications. We handle the tedious setup, so you can focus on the code.
og:urlhttps://www.docker.com/
og:site_nameDocker
og:updated_time2025-07-10T10:44:03-07:00
og:imagehttps://www.docker.com/app/uploads/2023/06/meta-image-homepage-1110x580.png
og:image:secure_urlhttps://www.docker.com/app/uploads/2023/06/meta-image-homepage-1110x580.png
og:image:width1110
og:image:height580
og:image:altdocker
og:image:typeimage/png
charsetUTF-8

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Page quality

Content
(Critically important)
This page contains 1419 words. That's ok.
26.5% 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.
25 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 15.74 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 28 tags for this page.
Image SEO
(Somewhat important)
4 images have no alt attribute. The content of alt attributes is used by search engines.
Social Networks
(Nice to have)
This page is optimized perfectly for social networks.
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
/app/uploads/2025/03/image-1024x1024.pngFeatured image
...25/07/Docker-Desktop_Promo-Box_v4-43.pngNo alt attribute provided
/app/uploads/2025/04/nav-promo-blog-DMR.pngNo alt attribute provided
...24/12/Promo-box-image_White-paper_FA.svgNo alt attribute provided
...station-and-iso-270010-certification.svgNo alt attribute provided
...loads/2025/07/Docker-home-JUL25_rev1.pngDocker home JUL25 rev1- Docker home JUL25 rev1
/app/uploads/2024/09/home-tab-build.pnghome tab build- home tab build
/app/uploads/2024/09/home-tab-share.pnghome tab share- home tab share
/app/uploads/2024/09/home-tab-run.pnghome tab run- home tab run
/app/uploads/2024/09/home-tab-verify.pnghome tab verify- home tab verify
/app/uploads/2024/09/home-tab-test.pnghome tab test- home tab test
...al/logos/logo-dark-blue-bastion-zero.pnglogo dark blue bastion zero- logo dark blue bastion zero
...xternal/logos/logo-dark-blue-spotify.pnglogo dark blue spotify- logo dark blue spotify
...ds/external/logos/logo-dark-blue-adp.svglogo dark blue adp- logo dark blue adp
...ternal/logos/logo-dark-blue-ataccama.svglogo dark blue ataccama- logo dark blue ataccama
...ernal/logos/logo-dark-blue-confluent.svglogo dark blue confluent- logo dark blue confluent
...external/logos/logo-dark-blue-cariad.svglogo dark blue cariad- logo dark blue cariad
.../logos/logo-dark-blue-cox-automotive.svglogo dark blue cox automotive- logo dark blue cox automotive
...xternal/logos/logo-dark-blue-expedia.svglogo dark blue- logo dark blue
...xternal/logos/logo-dark-blue-infosys.svglogo dark blue infosys- logo dark blue infosys
...ds/external/logos/logo-dark-blue-ing.svglogo dark blue ing- logo dark blue ing
...ernal/logos/logo-dark-blue-jw-player.svglogo dark blue jw player- logo dark blue jw player
...gos/logo-dark-blue-nytimes-rectangle.svglogo dark blue nytimes rectangle- logo dark blue nytimes rectangle
...ogos/logo-dark-blue-onemain-vertical.svglogo dark blue onemain vertical- logo dark blue onemain vertical
...logos/logo-dark-blue-pinterest-badge.svglogo dark blue pinterest badge- logo dark blue pinterest badge
...xternal/logos/logo-dark-blue-rakuten.svglogo dark blue rakuten- logo dark blue rakuten
...l/logos/logo-dark-blue-salt-security.svglogo dark blue salt security- logo dark blue salt security
...xternal/logos/logo-dark-blue-tabcorp.svglogo dark blue tabcorp- logo dark blue tabcorp
...s/logo-dark-blue-the-warehouse-group.svglogo dark blue the warehouse group- logo dark blue the warehouse group
.../logos/logo-dark-blue-trade-republic.svglogo dark blue trade republic- logo dark blue trade republic
.../external/logos/logo-dark-blue-zeiss.svglogo dark blue zeiss- logo dark blue zeiss
/app/uploads/2023/10/home-6-hero-2.svghome 6 hero 2- home 6 hero 2
/app/uploads/2023/10/logo-aws-amazon.svglogo aws amazon- logo aws amazon
/app/uploads/2023/10/logo-azure-1.svglogo azure 1- logo azure 1
...uploads/2023/10/logo-Jfrog_Green_RGB.svglogo Jfrog Green RGB- logo Jfrog Green RGB
...ads/external/logos/logo-white-gitlab.svglogo white gitlab- logo white gitlab
...ds/external/logos/logo-white-mongodb.svglogo white mongodb- logo white mongodb
...s/external/logos/logo-white-circleci.svglogo white circleci- logo white circleci
...ads/external/logos/logo-white-github.svglogo white github- logo white github
...oads/external/logos/logo-white-redis.svglogo white redis- logo white redis
...oads/external/logos/logo-white-nginx.svglogo white- logo white
...oads/external/logos/logo-white-jfrog.svglogo white jfrog- logo white jfrog
...external/logos/logo-white-kubernetes.svglogo white kubernetes- logo white kubernetes
...ds/external/logos/logo-white-elastic.svglogo white elastic- logo white elastic
.../external/logos/logo-white-bitbucket.svglogo white bitbucket- logo white bitbucket
/app/uploads/2024/01/icon-docker-square.svgicon docker square- icon docker square
/app/uploads/2024/01/icon-container.svgicon container- icon container
/app/uploads/2024/01/icon-upload-cloud.svgicon upload cloud- icon upload cloud

Page structure

H1 heading
(Critically important)
Develop faster
The H1 heading is too short (14 characters). It should be at least 20 Characters long.
Headings
(Important)
The structure of headings is missing one or more levels. Do not skip heading levels.
There are 43 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 Develop faster
H2 Accelerate how you build, share, and run applications
H2 Build
H2 Share
H2 Run
H2 Verify
H2 Test
H2 Trusted by developers. Chosen by Fortune 100 companies.
H2 20M+
H2 7M+
H2 20B+
H2 New to containers?
H2 Meet the community
H2 Develop from code to cloud with partners that you trust
H2 Integrate with your favorite tools and images
H2 Your path to accelerated application development starts here.
H2 Choose a subscription that’s right for you
H2 Products
H2 Features
H2 Developers
H2 Pricing
H2 Company
H2 Languages
H4 Spin up new environments quickly
H4 Integrate with your existing tools
H4 Containerize applications for consistency
H4 Discover and manage container images with Docker Hub
H4 Collaborate with your team seamlessly
H4 Ensure security and trust with Docker Hub
H4 Develop secure, modern applications with Docker Desktop
H4 Flexible and integrated development environment
H4 Streamline your development workflow
H4 Enhance security with Docker Scout
H4 Increase transparency and visibility
H4 Proactively address security concerns
H4 Test dependencies as code
H4 Unit tests with real dependencies
H4 Integrate and automate with ease
H4 Join our open source program
H4 Connect with Docker experts
H4 Download Docker
H4 Containerize your first app
H4 Publish your image on Docker Hub
Some internal link anchor texts are too long.
Some anchor texts are used more than once.
1 links don't have an anchor text.
The number of internal links is ok.
All internal links are not using dynamic parameters.
There are too many external links (26) on this page.

Found links on this page

LinkAttributesAnchor text
https://docs.docker.com/External Subdomain Docs
https://www.docker.com/support/Get Support
/pricing/contact-sales/Contact Sales
https://www.docker.com/No Text
/solutions/docker-ai/Docker for AI Simplifying Agent Development
/products/docker-offload/Docker Offload Break free of local constraints
/products/mcp-catalog-and-tool...Docker MCP Catalog and Toolkit Connect and manage MCP tools
/products/model-runner/Docker Model Runner Local-first LLM inference made easy
/blog/build-ai-agents-with-doc...Docker Brings Compose to the Agent Era: Building AI Agents is Now Easy Docker Accelerates Agent Development Read more
IMG-ALT Featured image
https://www.docker.com/products/Products
/products/docker-desktop/Docker Desktop Containerize your applications
/products/docker-hub/Docker Hub Discover and share container images
/products/docker-scout/Docker Scout Simplify the software supply chain
/products/build-cloud/Docker Build Cloud Speed up your image builds
https://testcontainers.com/des...External Testcontainers Desktop Local testing with real dependencies
https://testcontainers.com/cloud/External Testcontainers Cloud Test without limits in the cloud
/products/mcp-catalog-and-tool...Text duplicate Docker MCP Catalog and Toolkit Connect and manage MCP tools
/products/hardened-images/Docker Hardened Images Ship with secure, enterprise-ready images
/blog/docker-desktop-4-43/Docker Desktop v4.43 Find out what’s new to Docker Desktop in the latest release Read more
https://docs.docker.com/External Subdomain Documentation Find guides for Docker products
/get-started/Getting Started Learn the Docker basics
https://www.docker.com/resources/Resources Search a library of helpful materials
/resources/trainings/Training Skill up your Docker knowledge
/developers/sdk/Extensions SDK Create and share your own extensions
https://www.docker.com/community/Community Connect with other Docker developers
/community/open-source/Open Source Explore open source projects
/community/get-involved/develo...Preview Program Help shape the future of Docker
/customer-stories/Customer Stories Get inspired with customer stories
/newsletter-subscription/Get the latest Docker news
/blog/introducing-docker-model...Introducing Docker Model Runner A faster, simpler way to run and test AI models locally Read more
/resources/reducing-every-day-...Deliver Quickly. Build Securely. Stay Competitive. Meet growing demands for speed and security with integrated, efficient solutions Read more
https://www.docker.com/pricing/Pricing
https://www.docker.com/support/Support
https://www.docker.com/blog/Blog
https://www.docker.com/company/Company
https://www.docker.com/company/About Us Let us introduce ourselves
/resources/what-container/What is a Container? Learn about containerization
/why-docker/Why Docker Discover what makes us different
https://www.docker.com/trust/Trust Find our customer trust resources
https://www.docker.com/partners/Partners Become a Docker partner
/customer-success/Customer Success Learn how you can succeed with Docker
https://www.docker.com/events/Events Attend live and virtual meet ups
https://stores.kotisdesign.com...External Subdomain Docker Store Gear up with exclusive SWAG
https://www.docker.com/careers/Careers Apply to join our team
/company/contact/Contact Us We’d love to hear from you
/blog/docker-announces-soc-2-t...Docker Announces SOC 2 Type 2 Attestation & ISO 27001 Certification Learn what this means for Docker security and compliance Read more
https://app.docker.com/loginExternal Subdomain Sign In
/get-started/Get Started
https://desktop.docker.com/mac...New window Nofollow External Subdomain Download for Mac – Apple Silicon
https://desktop.docker.com/mac...New window Nofollow External Subdomain Download for Mac – Intel Chip
https://desktop.docker.com/win...New window Nofollow External Subdomain Download for Windows – AMD64
https://desktop.docker.com/win...New window Nofollow External Subdomain Download for Windows – ARM64
https://docs.docker.com/deskto...New window Nofollow External Subdomain Download for Linux
/solutions/docker-ai/Learn about Docker for AI
https://www.docker.com/buildBuild
https://www.docker.com/shareShare
https://www.docker.com/runRun
https://www.docker.com/verifyVerify
https://www.docker.com/testTest
/products/build-cloudOptimize builds with Docker Build Cloud
/products/docker-hub/Discover Docker Hub
/products/docker-desktop/Start with Docker Desktop
/products/docker-scout/Explore Docker Scout
https://testcontainers.com/New window Nofollow External Check out Testcontainers
https://www.docker.com/products/Explore all
https://www.docker.com/pricingChoose plan
/customer-stories/Read more customer stories
https://docs.docker.com/get-st...New window Nofollow External Subdomain Read the container guide
https://www.docker.com/community/Connect with us
/community/open-source/applica...Apply today
/community/captains/Find your Captain
https://www.docker.com/partnersOur trusted partners
https://docs.docker.com/get-do...New window Nofollow External Subdomain Get started
https://docs.docker.com/get-st...New window Nofollow External Subdomain Learn Docker
https://hub.docker.com/New window Nofollow External Subdomain Sign up for free
https://www.docker.com/pricingFind pricing
https://www.docker.com/products/Products Overview
/products/docker-desktop/Docker Desktop
/products/docker-hub/Docker Hub
/products/docker-scout/Docker Scout
/products/build-cloud/Docker Build Cloud
https://testcontainers.com/des...External Testcontainers Desktop
https://testcontainers.com/cloud/External Testcontainers Cloud
/products/mcp-catalog-and-tool...Docker MCP Catalog and Toolkit
/products/hardened-images/Docker Hardened Images
/products/cli/Command Line Interface
/products/ide/IDE Extensions
/products/container-runtime/Container Runtime
/products/extensions/Docker Extensions
/products/trusted-content/open...Trusted Open Source Content
/solutions/security/Secure Software Supply Chain
https://docs.docker.com/External Subdomain Documentation
/get-started/Getting Started
/resources/trainingsTrainings
/developers/sdk/Extensions SDK
https://www.docker.com/community/Community
/community/open-source/Open Source
/community/get-involved/develo...Preview Program
/newsletter-subscription/Newsletter
/products/personal/Personal
/products/pro/Pro
/products/team/Team
/products/business/Business
/pricing/faq/Pricing FAQ
/pricing/contact-sales/Text duplicate Contact Sales
https://www.docker.com/company/About Us
/resources/what-container/What is a Container
https://www.docker.com/blog/Text duplicate Blog
/why-docker/Why Docker
https://www.docker.com/trust/Trust
/customer-success/Customer Success
https://www.docker.com/partners/Partners
https://www.docker.com/events/Events
http://dockerstatus.com/External Docker System Status
/company/newsroom/Newsroom
https://stores.kotisdesign.com...External Subdomain Swag Store
/company/newsroom/media-resour...Brand Guidelines
/legal/trademark-guidelines/Trademark Guidelines
https://www.docker.com/careers/Careers
/company/contact/Contact Us
https://www.docker.com/English
https://www.docker.com/ja-jp/日本語
http://twitter.com/dockerNew window External No Text
https://www.linkedin.com/compa...New window External Subdomain No Text
https://www.instagram.com/dock...New window External Subdomain No Text
http://www.youtube.com/user/do...New window External Subdomain No Text
https://www.facebook.com/docke...New window External Subdomain No Text
https://www.docker.com/blog/feedNew window No Text
/legal/docker-terms-serviceTerms of Service
/legal/privacyPrivacy
https://www.docker.com/legal/Legal

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.docker.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 0.09 seconds.
The file size of the HTML document is fine (304 kB).

HTTP Response Header

NameValue
cache-controlpublic, max-age=604800
content-encodinggzip
content-typetext/html; charset=UTF-8
link<https://www.docker.com/wp-json/>; rel="https://api.w.org/"
servernginx
strict-transport-securitymax-age=31622400
x-pantheon-styx-hostnamestyx-fe4-b-96c86c7bc-pnrcx
x-styx-req-id7c58c5de-5e86-11f0-8f81-5ea6705a7ee5
age212358
accept-rangesbytes
via1.1 varnish, 1.1 varnish, 1.1 varnish, 1.1 varnish
x-content-type-optionsnosniff
referrer-policystrict-origin-when-cross-origin
permissions-policygeolocation=(), microphone=(), camera=(), fullscreen=(self), payment=()
x-frame-optionsSAMEORIGIN
x-xss-protection1; mode=block
dateMon, 14 Jul 2025 05:39:33 GMT
x-served-bycache-chi-kigq8000107-CHI, cache-fra-etou8220148-FRA, cache-fra-eddf8230048-FRA, cache-fra-eddf8230048-FRA
x-cacheHIT, HIT, MISS, MISS
x-cache-hits15, 487827, 0, 0
x-timerS1752471574.868628,VS0,VE5
varyAccept-Encoding, X-Language-Locale, Cookie, Cookie
content-length74891
statuscode200
http_versionHTTP/2

External factors

This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 26,837 referring domains.
This page has 1,322,242 backlinks.
This page has backlinks from 16,527 different ip addresses.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

User-agent: *
Allow: /wp-admin/admin-ajax.php
Disallow: /wp-admin/
Disallow: /pricing/contact-sales/bss-cc-thankyou/
Disallow: /pricing/contact-sales/bss-thankyou/
Disallow: /company/contact-thank-you/
Disallow: /thank-you-subscribing-docker-weekly/
Disallow: /pricing/contact-sales2/
Disallow: /cdn-cgi/
Disallow: /static/
Disallow: /c/
Disallow: /p/
Disallow: /products/telepresence-for-docker/thank-you/
Disallow: /style-guide/
Disallow: /search/

Allow: /ja-jp/wp-admin/admin-ajax.php
Disallow: /ja-jp/wp-admin/
Disallow: /ja-jp/pricing/contact-sales/bss-cc-thankyou/
Disallow: /ja-jp/pricing/contact-sales/bss-thankyou/
Disallow: /ja-jp/company/contact-thank-you/
Disallow: /ja-jp/thank-you-subscribing-docker-weekly/
Disallow: /ja-jp/pricing/contact-sales2/
Disallow: /ja-jp/cdn-cgi/
Disallow: /ja-jp/static/
Disallow: /ja-jp/c/
Disallow: /ja-jp/products/telepresence-for-docker/thank-you/
Disallow: /ja-jp/style-guide/


Sitemap: https://www.docker.com/sitemap_index.xml
Sitemap: https://www.docker.com/ja-jp/sitemap_index.xml

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www.docker.com
Docker: Accelerated Container Application Development
Docker is a platform designed to help developers build, share, and run container applications. We handle the tedious setup, so you can focus on the code.

Most important keywords

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

KeywordResultRecheck
Docker83%Check
Docker AI77%Check
container72%Check
Docker Hub66%Check
application65%Check
Docker Build Cloud64%Check
Docker Desktop63%Check
Docker images63%Check
container applications63%Check
Develop62%Check
Show more keywords and terms

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