SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
option-explicit.net
SSL/TLS Certificate
SSL/TLS Certificate for option-explicit.net
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- *.opex.es
- Valid from
- Aug 16, 2026
- Valid until
- Nov 14, 2026 (77 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 062CEDBD9CB5263AC3EBA8A7400EC9A41B59
- SHA-256 fingerprint
- 14:16:81:D7:0F:70:85:90:40:CB:C0:3A:C1:DA:8B:D0:ED:0D:0D:9C:D2:77:B5:C8:C8:DE:69:0E:3A:2F:13:D6
- Chain
- YR2 → Root YR → ISRG Root X1
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 Aug 11, 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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