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 phrenology.com

Valid
Issued by (CA)
Let's Encrypt
Subject
phrenology.com
Valid from
Jun 2, 2026
Valid until
Aug 31, 2026 (40 days remaining)
Public key
EC 256-bit
Serial
0600FBAC0707F79C66CCAB12716A37E15F79
SHA-256 fingerprint
CC:A7:3F:01:F5:1F:F3:13:77:94:75:46:E3:D5:F5:DC:91:F1:DD:33:10:33:ED:6B:5C:37:12:15:AD:8B:61:F9
Chain
YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (2)
phrenology.com, www.phrenology.com

Certificate Authority Authorization (CAA)

The serving CA (Let's Encrypt) is authorized by this domain's CAA records (comodoca.com, digicert.com, letsencrypt.org, pki.goog, ssl.com).