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 merz.cc
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- merz.cc
- Valid from
- Jul 19, 2026
- Valid until
- Oct 17, 2026 (88 days remaining)
- Public key
- EC 256-bit
- Serial
- 05B47FBF6A3ED8543E70C4549424108C3B7F
- SHA-256 fingerprint
- 94:4A:CD:15:86:1D:F4:A5:93:B5:13:09:6C:4A:A3:91:69:77:D2:56:BF:7C:F5:57:BC:E9:BE:F0:78:B8:6A:5F
- 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).