SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
pod-klasterem.cz
SSL/TLS Certificate
SSL/TLS Certificate for pod-klasterem.cz
Valid- Issued by (CA)
- Google Trust Services
- Subject
- pod-klasterem.cz
- Valid from
- Jul 21, 2026
- Valid until
- Oct 19, 2026 (73 days remaining)
- Public key
- RSA 2048-bit
- Serial
- FD6CEA6DB6D6ADB710BC9CB2823DDAC3
- SHA-256 fingerprint
- 80:05:77:78:80:C8:0B:9F:4B:07:D4:B5:5B:A1:F1:65:55:AA:1B:0F:12:4F:FA:11:AF:79:37:95:25:42:6A:27
- Chain
- WR3 → GTS Root R1
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 27, 2026.
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Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
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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