Free 404 Error Page Checker
Enter any website URL and get a plain-English 404-page score — 12 automated checks for a real 404 status, a custom design, helpful copy, kept navigation, a search box, useful links, brand identity, no auto-redirect, a contact path, a footer or sitemap link, a human touch, and placeholder copy that decide whether your 404 page recovers lost visitors or bounces them. Heuristics are stated as heuristics throughout.
Privacy: we fetch the URL you enter plus one guaranteed-missing page on the same site to run the checks, but we never store either. The only thing recorded is an anonymous "grader run" for our own stats. Public websites only.
What the checker checks
Is it a real 404?
A real 404 HTTP status with no redirect to home, a custom design instead of a server default, and no instant auto-redirect.
Can visitors recover?
Helpful copy, kept navigation, a search box, useful links beyond the nav, and brand identity carried over from the homepage.
Does it keep trust?
A contact or support path, a footer or sitemap link, a human touch, and no placeholder copy.