SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
atlas-as.cz
SSL/TLS Certificate
SSL/TLS Certificate for atlas-as.cz
Valid- Issued by (CA)
- Google Trust Services
- Subject
- atlas-as.cz
- Valid from
- Jul 30, 2026
- Valid until
- Oct 28, 2026 (77 days remaining)
- Public key
- EC 256-bit
- Serial
- 5E88FDD2A0071ABA0ECA9146B95A2C28
- SHA-256 fingerprint
- 2A:FD:7E:0A:23:53:DE:C0:FB:DE:77:2F:F4:18:ED:47:7A:95:A0:CD:43:37:E6:17:C5:0E:E6:98:D0:57:C1:D4
- Chain
- WE1 → GTS Root R4
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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Uptime
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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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