SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
hs-tech.cz
SSL/TLS Certificate
SSL/TLS Certificate for hs-tech.cz
Valid- Issued by (CA)
- Google Trust Services
- Subject
- hs-tech.cz
- Valid from
- Sep 3, 2026
- Valid until
- Dec 2, 2026 (64 days remaining)
- Public key
- EC 256-bit
- Serial
- DC517952145FA00A0ED295E9B65E482E
- SHA-256 fingerprint
- 99:B4:D4:ED:38:1A:E2:F4:02:39:27:51:11:D3:3F:13:31:F3:58:D1:1E:60:C1:0F:35:0B:12:4E:1C:5A:52:2C
- Chain
- WE1 → GTS Root R4
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 Sep 4, 2026.
Never get surprised by hs-tech.cz's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch hs-tech.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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