SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
nakup-elektro.cz
SSL/TLS Certificate
SSL/TLS Certificate for nakup-elektro.cz
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- *.nakup-elektro.cz
- Valid from
- Sep 5, 2026
- Valid until
- Dec 4, 2026 (44 days remaining)
- Public key
- EC 256-bit
- Serial
- 06061144E6AEE3E0E6ABFDFA5D82C87798F2
- SHA-256 fingerprint
- 72:52:A5:13:D5:A6:74:13:B6:FD:E5:6A:84:D0:7F:FD:3A:D5:27:B5:91:8C:E3:E4:DC:1F:67:18:59:9E:8D:C3
- 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.
We've observed 1 previous certificate for this host. This certificate has been served since Oct 4, 2026.
Never get surprised by nakup-elektro.cz's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch nakup-elektro.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, 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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.