Free online check

Check any URL for AI readiness

Paste a web address to run the same 17 checks as the free AI Visibility Checker extension. You get a score out of 100, what stops ChatGPT, Claude, Perplexity and Gemini from reading the page, and a fix for each problem. No account needed.

Checks one page at a time. Ten checks per network every ten minutes.

What it checks

17 checks in four groups, on one page

The checker fetches the page, then the site's robots.txt, sitemap.xml and llms.txt. The rules and weights are the ones the Chrome extension uses, and the same engine works out the score, so the two never disagree about what a rule means.

Crawlability

Whether robots.txt lets the AI crawlers of OpenAI, Anthropic, Perplexity, Google, Bing, Common Crawl and Apple in, and whether sitemap.xml and llms.txt exist and are served as the right type.

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Structured data

Whether the JSON-LD parses and uses the types the page needs: Organization, Service or Product, and FAQPage where there are questions.

Meta tags

Title and description length, canonical URL, language, viewport and charset, and a complete Open Graph set for link previews.

Content structure

One H1, headings in order, an opening paragraph that says what the page is in under 60 words, a Q&A block, and enough text to answer a question.

Two ways to check

Online check or Chrome extension

Both run the same rules. They differ in what they read, and each one sees something the other can't.

Online check

Reads the HTML your server sends, before any JavaScript runs. Most AI crawlers read pages this way, so it is the stricter view. Works from any device, for any public page.

Chrome extension

Reads the page after it renders in your browser, including content added by JavaScript, and works on pages that turn automated requests away. About the extension →

Have me fix it

Every problem in the report has its own button. It opens a request with the result filled in, and I reply within one business day with a free audit and a quote. See the fix service →

FAQ

Questions about the online check

Is the online check free?

Yes, with no account. Each network can run ten checks every ten minutes, which keeps the checker fast for everyone.

Why can the result differ from the Chrome extension?

The online check reads the HTML your server sends, before any JavaScript runs, which is how most AI crawlers read a page. The extension reads the page after it has rendered in your browser. On sites that build their content with JavaScript, headings, text and structured data can differ between the two.

What happens to the address I check?

Our server fetches that page and the site's robots.txt, sitemap.xml and llms.txt, builds the report, and keeps it in memory for ten minutes so a repeat check is instant. Nothing is saved to a database. Server logs keep the site's hostname and a one-way hash of your IP address, not the full address.

Why did the site refuse the checker?

Some firewalls turn away automated requests. The checker says who it is instead of pretending to be a browser, so those sites answer with an error. Run the Chrome extension on the page instead: it checks from your own browser.

Which pages can't be checked?

Addresses on private networks such as localhost, pages behind a login, and files that are not web pages, such as PDFs. The check reads one page per request and does not crawl the rest of the site.