SSL/TLS Certificate Lookup

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

heizma.at

SSL/TLS Certificate

WhoisRDAPDNS RecordsCertificateUptimeDiagnosticsHistoryHide Contact Info

SSL/TLS Certificate for heizma.at

Valid
Issued by (CA)
Let's Encrypt
Subject
heizma.at
Valid from
May 31, 2026
Valid until
Aug 29, 2026 (39 days remaining)
Public key
EC 256-bit
Serial
0640AD7F030F85F5CDB65294993D81DCF85B
SHA-256 fingerprint
95:DE:3B:9A:C6:C4:A1:D8:8A:7C:3B:AF:16:37:6B:A7:3D:EB:C8:42:70:54:4C:E2:A4:33:18:61:10:AB:AD:9E
Chain
YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (1)
heizma.at

Certificate Authority Authorization (CAA)

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