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 wanet.cz
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- wanet.cz
- Valid from
- Sep 9, 2026
- Valid until
- Dec 8, 2026 (65 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05FCDC80F9A32B50F7BC4A40AB80BF0877FB
- SHA-256 fingerprint
- F7:55:EB:77:1F:5F:57:24:FE:9A:03:7F:7E:39:B8:BA:4A:C9:F7:1D:56:BA:6F:FA:CA:55:38:98:48:BC:FE:67
- Chain
- YR2 → Root YR → ISRG Root X1
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 Sep 29, 2026.
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This is today's certificate. Turn on monitoring and we'll watch wanet.cz continuously, notifying you the moment anything moves across all three signals:
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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