SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
opta-tech.com
SSL/TLS Certificate
SSL/TLS Certificate for opta-tech.com
Valid- Issued by (CA)
- home.pl S.A.
- Subject
- *.opta-tech.com
- Valid from
- Dec 15, 2025
- Valid until
- Jan 14, 2027 (106 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 7A4918123E77A3AF6EFBC55A74A3D758
- SHA-256 fingerprint
- 8B:40:AB:6E:16:DA:90:66:FF:31:AF:D8:D7:D5:59:D9:15:C7:10:18:AD:D6:8F:51:B8:F9:08:73:4D:C8:FF:F4
- Chain
- home pl DV TLS G2 R35 CA → Certum Trusted Root CA → Certum Trusted Network CA
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 6, 2026.
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Uptime
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DNS changes
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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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