Free tool

Does your unhappy path exist?

AI generates the happy path and stops. A wrong route returns HTTP 200 with the home page, the 404 is blank, a stack trace leaks, content only exists with JavaScript on. This test knocks on the doors nobody tested and reports what happens.

Free, no signup. Deterministic checks: no AI grading you.

What this test checks

A real 404A real 404does a nonexistent route return status 404 with a useful page, or 200 with the home (soft 404)?

Stack tracesStack tracesruntime errors leaking file paths and internals to the public.

ViewportViewportmissing or locked meta viewport: people who need zoom cannot use the site.

Content without JavaScriptContent without JavaScriptAI crawlers do not run JS. If the served HTML is empty, to a machine your site says nothing.

The engine is the same as the full exam. Findings from the other fronts show up as a one-line summary with a link to the full report. Everything with clickable evidence, as the methodology demands.

Why does soft 404 matter?

Google indexes the error as if it were content and lost users get no signal. Correct status codes are indexing hygiene and UX at the same time.

Do you test forms?

Not yet: form validation needs a real browser and is in the verifier queue. Everything here today is 100% verifiable via HTTP and served DOM.

Is your site visible to search?Can AI read and cite your site?Every link on your site, checked one by one Does your price match your terms?Does your privacy policy match your site?Does your site contradict itself?