Complete website health checker

What this combines

Ten checks this site already runs individually - DNS availability, DNSSEC, the SSL certificate, HTTPS reachability, the HTTP-to-HTTPS redirect, security headers, cookies, robots.txt, the sitemap, and an email-security summary - reused exactly as their own dedicated tool pages run them, assembled into one report rather than ten separate visits.

Run concurrently, with a shared time budget

All ten checks start at once rather than one after another, so the whole report typically returns in well under the time any single slow check might take on its own. A generous overall time budget covers the whole run; a check that has not finished within it is reported as unable to check rather than left to hang indefinitely.

A slow or failing check never loses the rest of the report

Each check runs independently - if one subsystem times out or an external service is briefly unreachable, that single row is marked "unable to check" and every other check's result is still reported in full. Partial results are the normal case here, not a degraded fallback.

The score, and what it deliberately does not count

"Checks passed" divides only by checks that actually completed - "unable to check" rows are excluded from both sides of that fraction entirely, so a domain is never penalized for this tool failing to reach something. Warnings and critical failures are counted and shown separately, so the difference between "needs attention" and "actively broken" stays visible rather than collapsed into one number.

What this is, and is not

A broad first pass pulling together checks this site already performs one at a time - not a replacement for a dedicated security audit, and not a guarantee that a domain passing every check here has no other issues outside what these ten checks look at.