SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for airwe.cz
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- airwe.cz
- Valid from
- Sep 7, 2026
- Valid until
- Dec 6, 2026 (87 days remaining)
- Public key
- EC 256-bit
- Serial
- 065492B0FD494FE949CD96BA0FC7B3903DE0
- SHA-256 fingerprint
- C2:AA:F1:60:E9:F9:E2:30:C9:E9:FE:4B:AA:93:56:D2:F6:F1:F4:7B:0C:BD:64:39:0D:2D:C3:4F:5B:F0:3F:A0
- Chain
- YE2 → 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.
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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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