SharkDNS Live Query
SSL Certificate
Inspect the TLS certificate, chain, and negotiated security for a domain or IP.
No check yet
Enter a domain or IP to inspect its TLS certificate.
How This Query Works
SSL inspection connects to the target over TLS and summarizes the presented certificate and handshake.
The leaf certificate, issuer, validity window, and days remaining are shown first.
Trust is verified against the system root pool; broken or expired chains are reported with the reason.
TLS version, cipher suite, ALPN, and OCSP stapling describe the negotiated connection security.
SSLTLSCertificate ChainExpiry
Related Guides
Short articles explaining when and why to use this query.
SSL certificate lookup explained
4 min readCheck TLS certificates for any domain or IP and read issuer, validity, chain trust, and negotiated TLS security.
What is DNS lookup used for?
4 min readUse DNS lookup to inspect records, verify routing, troubleshoot mail, and compare public DNS visibility.
Reverse IP lookup explained
3 min readFind domains observed on the same IPv4 address and understand shared hosting or infrastructure relationships.