SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
franmar.de
SSL/TLS Certificate
SSL/TLS Certificate for franmar.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- franmar.de
- Valid from
- Aug 6, 2026
- Valid until
- Nov 4, 2026 (80 days remaining)
- Public key
- EC 384-bit
- Serial
- 05B0E0FD694B5BFC340EC8296475A6F38A26
- SHA-256 fingerprint
- 9C:7E:72:EC:0D:6F:6F:BB:17:60:1F:BF:F9:30:8E:F0:12:0B:C9:40:9E:34:BE:41:6B:FD:8A:09:E4:BF:14:D2
- Chain
- YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org, sectigo.com).
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Uptime
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DNS changes
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TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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