SSL/TLS Certificate Lookup

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

duffner-blockbau.de

SSL/TLS Certificate

WhoisRDAPDNS RecordsCertificateUptimeDiagnosticsHistoryHide Contact Info

SSL/TLS Certificate for duffner-blockbau.de

Valid
Issued by (CA)
Sectigo Limited
Subject
duffner-blockbau.de
Valid from
Jan 13, 2026
Valid until
Jan 27, 2027 (190 days remaining)
Public key
RSA 2048-bit
Serial
3320979F57B96CF622D6EBC8FB7E2BDA
SHA-256 fingerprint
02:75:43:D6:5E:4B:66:33:CD:CC:DA:BA:F0:F9:61:3D:08:6A:FC:A0:DE:67:94:FF:9B:2F:FB:35:DB:21:3F:DA
Chain
Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Subject Alternative Names (2)
duffner-blockbau.de, www.duffner-blockbau.de

Certificate Authority Authorization (CAA)

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