IPGIPGrid-ai

SSL/TLS Certificate Check

Inspect the TLS certificate of a public host.

Connects to a host over TLS and reads the certificate: issuer, validity period, SANs, and signature algorithm. Alerts on expired or mismatched certificates.

Reads the publicly presented TLS certificate.

Privacy: Only the certificate presented publicly is inspected; no private keys are involved.

Related tools

HTTP Header Security CheckFetch and review the security headers of any public website.DNS LookupQuery any DNS record type (A, AAAA, MX, TXT, NS, CNAME, SOA and more).

Frequently asked questions

How long do TLS certificates last?

Publicly trusted certificates are typically valid for 90 days to one year, and are auto-renewed by providers like Let's Encrypt.