SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
modry-konik.cz
SSL/TLS Certificate
SSL/TLS Certificate for modry-konik.cz
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- modry-konik.cz
- Valid from
- Jun 22, 2026
- Valid until
- Sep 20, 2026 (43 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05E2BCA1C65E5E25DF379355BCE8D8A0720D
- SHA-256 fingerprint
- D1:A7:66:36:A9:34:D8:6D:84:F9:F9:51:15:D2:E5:5A:97:A7:FF:E9:4B:30:50:86:D6:12:41:09:B2:63:4B:EB
- Chain
- YR2 → Root YR → 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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Uptime
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DNS changes
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TLS certificate
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