SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
profi-email.cz
SSL/TLS Certificate
SSL/TLS Certificate for profi-email.cz
Hostname mismatch- Issued by (CA)
- Let's Encrypt
- Subject
- firma.atenaz.cz
- Valid from
- Sep 28, 2026
- Valid until
- Dec 27, 2026 (88 days remaining)
- Public key
- EC 256-bit
- Serial
- 059A57A89C22561A0D239000CDA701395565
- SHA-256 fingerprint
- 7B:7F:9F:67:27:CC:B9:FA:02:36:95:0B:E8:5A:E5:51:0B:5B:CA:7A:4C:A1:33:2B:00:C1:A9:12:44:16:E6:64
- Chain
- YE1 → Root YE → ISRG Root X2 → 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 Aug 10, 2026.
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