SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
r-sport.cz
SSL/TLS Certificate
SSL/TLS Certificate for r-sport.cz
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- r-sport.cz
- Valid from
- Jun 28, 2026
- Valid until
- Sep 26, 2026 (61 days remaining)
- Public key
- EC 256-bit
- Serial
- 0587D98B7D92AF149E6E2CED64264BBA6ED8
- SHA-256 fingerprint
- 78:E9:C4:19:31:F3:85:40:60:27:22:87:99:C0:1D:4F:34:D8:DF:76:8C:96:5E:91:0C:1F:AC:24:CF:DC:9A:60
- 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 Jul 26, 2026.
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Uptime
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DNS changes
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TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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