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 wobi.cz
Self-signed- Issued by (CA)
- whxxx
- Subject
- whxxx
- Valid from
- Nov 2, 2022
- Valid until
- Oct 30, 2032 (2273 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 5F7A49C8453C29936436662B1B90B3CF39432236
- SHA-256 fingerprint
- 33:AA:25:C9:B2:2E:C3:52:FF:5F:2F:1A:32:71:A3:C3:71:9E:7E:98:BB:07:D5:D5:96:D6:A5:7D:E4:8A:88:C6
- Chain
- whxxx
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 Aug 5, 2026.
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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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