SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sykora-cz.com
SSL/TLS Certificate
SSL/TLS Certificate for sykora-cz.com
Expiring soon- Issued by (CA)
- GoDaddy.com, Inc.
- Subject
- sykora-cz.com
- Valid from
- Jan 27, 2026
- Valid until
- Aug 13, 2026 (17 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 57AFA93E6C813C43
- SHA-256 fingerprint
- 21:C6:C2:F1:91:54:C4:9E:E5:3E:49:EA:CE:49:D7:F1:AD:56:D2:BD:6E:9A:90:6C:4F:B2:35:72:BA:AD:0D:0B
- Chain
- Go Daddy Secure Certificate Authority - G2 → Go Daddy Root Certificate Authority - G2
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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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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