SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
zendi-construction.cz
SSL/TLS Certificate
SSL/TLS Certificate for zendi-construction.cz
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- zendi-construction.cz
- Valid from
- Jun 5, 2026
- Valid until
- Sep 3, 2026 (30 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 06BFC6E86772ECEDF2D543D24B641E3FD748
- SHA-256 fingerprint
- 24:68:8E:55:50:FD:75:D6:5E:C5:CA:C6:5E:AA:80:36:41:93:E0:68:B9:E9:57:36:EE:39:A9:15:2A:CF:63:CD
- Chain
- YR1 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by zendi-construction.cz's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch zendi-construction.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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