SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
comz-i.com
SSL/TLS Certificate
SSL/TLS Certificate for comz-i.com
Hostname mismatch- Issued by (CA)
- Cybertrust Japan Co., Ltd.
- Subject
- *.es-ws.jp
- Valid from
- Jun 22, 2026
- Valid until
- Dec 31, 2026 (157 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 4FDDBA78932E34E670F7DBBDECE43C9419981A69
- SHA-256 fingerprint
- 1B:2A:34:37:A9:C2:DD:DE:65:01:18:84:BA:15:2A:94:5D:9C:4C:D5:C0:68:00:9A:8C:1D:51:C3:64:0B:D6:54
- Chain
- Cybertrust Japan SureServer CA G4
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by comz-i.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch comz-i.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.