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 gc-mc.de
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- —
- Valid from
- Sep 28, 2026
- Valid until
- Oct 5, 2026 (expired 12 days ago)
- Public key
- EC 384-bit
- Serial
- 05F3069D68C178588DB5D97889776462B48C
- SHA-256 fingerprint
- 52:3B:EA:F7:9E:45:17:76:60:BF:E2:99:48:01:74:94:3C:BF:58:2C:76:CB:99:34:25:CE:30:EF:AE:A1:6C:8D
- Chain
- YE2 → 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).
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TLS certificate
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