SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
nis2-mainz.de
SSL/TLS Certificate
SSL/TLS Certificate for nis2-mainz.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- nis2-mainz.de
- Valid from
- Aug 8, 2026
- Valid until
- Nov 6, 2026 (46 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 066A2670E479E09A5619FDCAE994C69AE920
- SHA-256 fingerprint
- 00:7E:D0:D6:99:16:E7:43:84:31:36:8F:81:53:5E:F8:E1:E2:A4:77:91:11:F0:C9:D7:C2:23:B6:3A:6E:FB:2B
- 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 17, 2026.
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Uptime
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DNS changes
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TLS certificate
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