SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
tek-zo.com
SSL/TLS Certificate
SSL/TLS Certificate for tek-zo.com
Valid- Issued by (CA)
- Google Trust Services
- Subject
- tek-zo.com
- Valid from
- Aug 28, 2026
- Valid until
- Nov 26, 2026 (43 days remaining)
- Public key
- EC 256-bit
- Serial
- 27C9B9058695271C13B19328C5A386D2
- SHA-256 fingerprint
- 78:E4:9B:03:67:2A:C1:AF:77:B6:73:97:38:23:AC:75:53:A3:6F:42:B1:7E:0D:80:E1:46:FC:9F:61:8A:15:C5
- Chain
- WE1 → GTS Root R4
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 Aug 27, 2026.
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This is today's certificate. Turn on monitoring and we'll watch tek-zo.com 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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