SSL/TLS Certificate Lookup

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

prooof.de

SSL/TLS Certificate

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SSL/TLS Certificate for prooof.de

Valid
Issued by (CA)
Let's Encrypt
Subject
prooof.de
Valid from
Jul 2, 2026
Valid until
Sep 30, 2026 (71 days remaining)
Public key
EC 256-bit
Serial
0555F0F8BA9F9E9426B4505B88D1E6CB241F
SHA-256 fingerprint
CF:F7:F4:97:EC:DA:05:E5:B8:41:B6:F2:7F:B0:AF:3A:38:A2:CD:C0:D4:87:75:5B:49:97:7F:D4:81:A6:3F:6B
Chain
YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (1)
prooof.de

Certificate Authority Authorization (CAA)

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