SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
optex-tech.com
SSL/TLS Certificate
SSL/TLS Certificate for optex-tech.com
Hostname mismatch- Issued by (CA)
- GoDaddy.com
- Subject
- www.altimages.com
- Valid from
- Sep 21, 2026
- Valid until
- Apr 7, 2027 (194 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 65F1739F508DBB5D
- SHA-256 fingerprint
- 3E:B5:49:3B:FC:4E:BA:8D:61:C9:92:3D:40:43:70:B6:62:1A:30:45:AA:51:5F:85:CB:20:A3:18:58:A8:A4:A9
- Chain
- GoDaddy TLS Intermediate CA DV - R1v1 → GoDaddy TLS Root CA - R1 → Go Daddy Root Certificate Authority - G2
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 Sep 23, 2026.
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Uptime
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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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