SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for zipfl.at
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- zipfl.at
- Valid from
- Jul 11, 2026
- Valid until
- Oct 9, 2026 (79 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 055659C504C95AC32356711BA5CAD3C80A27
- SHA-256 fingerprint
- AA:55:26:7C:AF:E7:41:AA:D1:A3:F0:93:5C:D2:33:A8:AD:8B:82:90:ED:3E:E5:E1:88:D8:8A:AE:7F:B5:AD:C8
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.