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
B
SEO report

https://www.wikipedia.org/

Score 88/100 · Scanned 13 Oct 2026, 21:08 UTC · by ToolsForAnyone

Search result preview

https://www.wikipedia.org/
Wikipedia
Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation.
Passed18
Warnings5
Errors0

Content

Title is 9 characters
Wikipedia
Aim for 30–60 characters so it is not truncated in search results.
Meta description length is good (130 characters)
Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation.
One H1 heading
Wikipedia The Free Encyclopedia
Heading structure is logical
8 headings: H1, H2, H2, H2, H2, H2, H3, H3
1,291 words of text
Enough text for search engines to understand the topic.
7 of 7 images have alt text
All images are described.

Indexing

Page is indexable
No noindex directive in meta robots or X-Robots-Tag.
No canonical URL
Duplicate URLs (with parameters, www/non-www) can split ranking signals.
Add <link rel="canonical" href="…">.
robots.txt found
# robots.txt for http://www.wikipedia.org/ and friends # # Please note: There are a lot of pages on this site, and there are # some misbehaved spiders out there that go _way_ too fast. If you're # irresponsible, your access to the site may be blocked. # # Observed spamming large amounts of https:/
XML sitemap found
Sitemaps help search engines discover all your pages.
1 redirect before the page
https://wikipedia.org/ → https://www.wikipedia.org/

Technical

Served over HTTPS
https://www.wikipedia.org/
Viewport does not set width=device-width
initial-scale=1,user-scalable=yes
Use width=device-width, initial-scale=1.
Language declared (en)
Helps search engines and screen readers.
Server responded in 654 ms
Time to first byte from our server, including connection setup.
HTML size 119 KB
Uncompressed HTML document size.
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: 3 of 4
og:title, og:description, og:image
No Twitter card
<meta name="twitter:card" content="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

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

Heading outline

H1 Wikipedia The Free Encyclopedia
H2 1,000,000+ articles
H2 100,000+ articles
H2 10,000+ articles
H2 1,000+ articles
H2 100+ articles
H3 The internet we were promised
H3 We want to be transparent with you.

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 SSL checker; 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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