Inspect a website's SSL/TLS certificate: issuer, subject, valid dates, days remaining, the TLS protocol and whether the chain is trusted. A quick way to catch certificates before they expire. Runs server-side; nothing is stored.
SSL Certificate Checker performs a fast, secure server-side lookup and presents the results in a clear, readable format.
It indicates the certificate chain validates against standard certificate authorities.
Reading another site's TLS certificate requires a direct TLS connection browsers don't allow.
No.
This tool runs a lookup on our server, because a browser can't query DNS/WHOIS/TLS or read other sites' headers directly. Queries aren't stored.