SSL/TLS Certificate Lookup

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

perseusacademic.com

SSL/TLS Certificate

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SSL/TLS Certificate for perseusacademic.com

Valid
Issued by (CA)
Let's Encrypt
Subject
perseusacademic.com
Valid from
Jul 4, 2026
Valid until
Oct 2, 2026 (73 days remaining)
Public key
EC 256-bit
Serial
051A9A2EF8121FEFBC00EC8F3AAFDEA07B22
SHA-256 fingerprint
B4:C1:71:6C:98:08:D1:CC:7B:C5:87:1E:46:BC:DC:62:AF:F0:A4:52:CD:5D:AB:6D:E5:16:33:5E:4C:F9:9B:F7
Chain
YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (2)
perseusacademic.com, www.perseusacademic.com

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.