SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
st-aposteln.de
SSL/TLS Certificate
SSL/TLS Certificate for st-aposteln.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- www.sankt-aposteln.koeln
- Valid from
- Aug 12, 2026
- Valid until
- Nov 10, 2026 (38 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06E25B969668ED74B9395FC0A8D67D3999D7
- SHA-256 fingerprint
- BB:0B:C9:9C:F9:9D:30:D5:F5:A2:C4:66:47:D4:AE:13:22:86:12:F9:86:95:6A:20:38:B7:68:F2:ED:FC:AC:B0
- Chain
- YR1 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Sep 29, 2026.
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Uptime
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DNS changes
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TLS certificate
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