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 nixnet.email

Valid
Issued by (CA)
Let's Encrypt
Subject
nixnet.email
Valid from
Jul 8, 2026
Valid until
Oct 6, 2026 (76 days remaining)
Public key
EC 256-bit
Serial
05866749F0A24D01B2A46CFB2EB368608A3B
SHA-256 fingerprint
C2:D7:AB:00:B8:52:44:74:44:2B:23:F9:DA:B9:23:C5:98:F0:42:03:BB:2F:44:32:46:3E:6B:D7:34:16:0B:DE
Chain
YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (1)
nixnet.email

Certificate Authority Authorization (CAA)

The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org).