SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
elektroeckert.cz
SSL/TLS Certificate
SSL/TLS Certificate for elektroeckert.cz
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- www.elektroeckert.cz
- Valid from
- Apr 15, 2026
- Valid until
- Jul 14, 2026 (expired 79 days ago)
- Public key
- RSA 4096-bit
- Serial
- 058914F1503596628110D8DB3866EE0C14BB
- SHA-256 fingerprint
- 19:A9:C6:E6:57:9F:03:F1:38:9D:73:06:BF:3E:9C:FD:91:D5:41:8D:86:DE:C7:9A:D4:10:25:DD:E7:A9:3B:F8
- Chain
- R12 → ISRG Root X1
Certificate Authority Authorization (CAA)
The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org).
This certificate has been served since Sep 22, 2026.
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DNS changes
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TLS certificate
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