SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

SSL/TLS Certificate for openai-php.com

Valid
Issued by (CA)
Let's Encrypt
Subject
openai-php.com
Valid from
Nov 7, 2026
Valid until
Feb 5, 2027 (83 days remaining)
Public key
RSA 2048-bit
Serial
05FE24D5CA57CA07CCA1BE0F9272C0082753
SHA-256 fingerprint
EE:F2:C8:69:9D:4D:DE:BD:F5:D4:BA:C0:A1:1A:26:2B:8E:7D:DA:DF:81:88:B6:42:CF:CA:C8:EC:39:7F:1B:F7
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (3)
mail.openai-php.com, openai-php.com, www.openai-php.com

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 Nov 1, 2026.

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