AuditXFree · No signup · Real TLS handshake, not a cache
Is this site's certificate about to expire?
Paste any domain. AuditX's server does a real TLS handshake with it right now and reports the actual certificate expiry and issuer, plus the live HTTP status code and response time — the same checks a sysadmin runs manually.
Enter a domain and click Check.
How this works
This isn't a lookup against a third-party database — AuditX's server opens a real TCP connection to the domain on port 443, completes an actual TLS handshake, and reads the certificate it's presented right now. It also makes one real HTTP request and reports the exact status code and timing, without following redirects blindly (a redirect target is reported, not silently chased).
For your own safety this can only check public internet domains — it refuses hostnames that resolve to private or internal addresses.