SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

openiis.com

SSL/TLS Certificate

WhoisRDAPDNS RecordsCertificateUptimeDiagnosticsHistoryHide Contact Info

SSL/TLS Certificate for openiis.com

Valid
Issued by (CA)
Let's Encrypt
Subject
openiis.com
Valid from
Jul 1, 2026
Valid until
Sep 29, 2026 (70 days remaining)
Public key
EC 256-bit
Serial
0562F881617E68DBBBC38AB06F439ECAE197
SHA-256 fingerprint
FD:FB:B4:30:51:69:F9:CF:B6:4C:2F:7B:01:18:F9:00:2F:1B:32:40:EB:37:C3:82:79:63:7A:54:58:F2:32:B5
Chain
YE2 → Root YE → ISRG Root X2
Subject Alternative Names (2)
*.openiis.com, openiis.com

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.