SEO Checker

Audit any page's on-page and technical SEO in seconds: titles, descriptions, headings, indexability, canonical, robots.txt, sitemap, mobile readiness, structured data and social tags.

Try: wikipedia.org, bbc.com/news, github.com
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SEO report

https://github.com/

Score 89/100 · Scanned 13 Oct 2026, 03:57 UTC · by WhatsMyIPNumber

Search result preview

https://github.com/
GitHub · Change is constant. GitHub keeps you ahead. · GitHub…
Join the world's most widely adopted, AI-powered developer platform where millions of developers, businesses, and the largest open source community build softw…
Passed18
Warnings5
Errors0

Content

Title is 70 characters
GitHub · Change is constant. GitHub keeps you ahead. · GitHub · GitHub
Aim for 30–60 characters so it is not truncated in search results.
Meta description is 186 characters
Join the world's most widely adopted, AI-powered developer platform where millions of developers, businesses, and the largest open source community build software that advances humanity.
Aim for 70–160 characters.
One H1 heading
The future of building happens together
Heading structure is logical
26 headings: H2, H1, H2, H2, H2, H3, H3, H3, H3, H3, H2, H3, H2, H3, H3
1,124 words of text
Enough text for search engines to understand the topic.
24 of 24 images have alt text
All images are described.

Indexing

Page is indexable
No noindex directive in meta robots or X-Robots-Tag.
Canonical URL set
https://github.com
robots.txt found
# If you would like to crawl GitHub contact us via https://support.github.com?tags=dotcom-robots # We also provide an extensive API: https://docs.github.com User-agent: GPTBot User-agent: OAI-SearchBot User-agent: ClaudeBot User-agent: anthropic-ai User-agent: PerplexityBot Crawl-delay: 1 Allow: /$
No XML sitemap found
Sitemaps help search engines discover all your pages.
Publish /sitemap.xml and reference it in robots.txt.
0 redirects before the page
https://github.com/

Technical

Served over HTTPS
https://github.com/
Mobile viewport set
width=device-width
Language declared (en)
Helps search engines and screen readers.
Server responded in 240 ms
Time to first byte from our server, including connection setup.
HTML size 559 KB
Uncompressed HTML document size.
Reduce inline scripts/styles and markup.
Compression: gzip
gzip, brotli or zstd shrink HTML by 70–90%.
Favicon declared
Shown next to your result in mobile search.

Social

Open Graph tags: 4 of 4
og:title, og:description, og:image, og:url
Twitter card: summary_large_image
No structured data (JSON-LD)
Schema.org markup can enable rich results.
Add JSON-LD for your Organization, Article, Product, etc.

Links

121 internal links
Internal links pass authority and help crawling.
14 external links (0 nofollow)
Linking to relevant authoritative sources is fine.

Heading outline

H2 Navigation Menu
H1 The future of building happens together
H2 GitHub features
H2 GitHub customers
H2 Accelerate your entire workflow
H3 Your AI partner everywhere. Copilot is ready to work with you at each step of the software development lifecycle.
H3 Automate your path to production
H3 Code instantly from anywhere
H3 Keep momentum on the go
H3 Shape your toolchain
H2 Built-in application security where found means fixed
H3 Apply fixes in seconds. Spend less time debugging and more time building features with Copilot Autofix.
H2 Work together, achieve more
H3 Plan with clarity. Organize everything from high-level roadmaps to everyday tasks.
H3 Keep track of your tasks
H3 Share ideas and ask questions
H3 Review code changes together
H3 Fund open source projects
H2 From startups to enterprises, GitHub scales with teams of any size in any industry.
H2 Millions of developers and businesses call GitHub home
H2 Site-wide Links
H3 The developer newsletter
H3 Platform
H3 Ecosystem
H3 Support
H3 Company

What the SEO checker analyses

The checker downloads the page exactly as a search engine crawler would, follows any redirects, and tests more than 20 on-page and technical factors that influence how the page is crawled, indexed and displayed in search results:

  • Content: title tag and meta description length, a single descriptive H1, logical heading order, amount of text, image alt attributes.
  • Indexing: noindex directives, canonical URL, robots.txt rules, XML sitemap, redirect chains and status code.
  • Technical: HTTPS, mobile viewport, language declaration, server response time, HTML size, compression and favicon.
  • Social & structured data: Open Graph and Twitter tags for link previews, and schema.org JSON-LD types.
  • Links: internal and external links, including nofollow.

How to use the results

  1. Fix errors first. A noindex tag, a robots.txt block or a missing title can keep a page out of search entirely.
  2. Improve the search snippet. The preview shows how your title and description may appear. Write them for people: a clear promise, the main keyword and a reason to click.
  3. Strengthen the content. Search engines rank pages that fully answer the searcher's question. Use headings to structure that answer.
  4. Check speed and security. Run the website speed test and the security scanner; HTTPS and page experience are ranking signals.
Note: no tool can see everything that affects rankings: backlinks, content quality, search intent and competition matter most. Use this audit to remove technical obstacles, then focus on making the best page for the topic. Google Search Console shows how your pages actually perform.

Related: redirect checker, HTTP headers checker and HTTP status codes explained.

Frequently asked questions

Does the checker execute JavaScript?

No. It analyses the HTML returned by the server. If your site renders content with JavaScript, make sure important text and links are in the server response, or use server-side rendering, so all search engines can see them.

How long should a title tag be?

Roughly 30–60 characters. Google truncates by pixel width (around 600 px), so very long titles are cut off.

Is a meta description a ranking factor?

Not directly, but a compelling description improves click-through rate from search results.

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