SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ak-konecna.cz
SSL/TLS Certificate
SSL/TLS Certificate for ak-konecna.cz
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- ak-konecna.cz
- Valid from
- Oct 14, 2026
- Valid until
- Jan 12, 2027 (69 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 059152AE580A0F30473CA9CEABC1598A4339
- SHA-256 fingerprint
- DB:E3:4C:3B:AC:0C:7D:2E:9B:F9:82:EF:23:31:39:AA:A3:22:A5:5D:84:BD:36:A4:1F:90:15:90:2C:D0:27:1A
- 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.
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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, CNAME, TXT 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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