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 dgpt-online.de

Valid
Issued by (CA)
Let's Encrypt
Subject
dgpt-online.de
Valid from
Oct 16, 2026
Valid until
Jan 14, 2027 (67 days remaining)
Public key
RSA 4096-bit
Serial
065D0878619319BD076FD8B2E49A294EE47F
SHA-256 fingerprint
DF:0B:AB:0F:27:AC:CC:54:66:9B:4B:33:8C:25:41:47:0D:BD:F5:B0:D6:4C:D7:19:B7:EE:5B:E5:0C:6C:B6:0B
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (5)
dgpt-online.de, dgpt-online.eu, webmail.dgpt-online.de, www.dgpt-online.de, www.dgpt-online.eu

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 6, 2026.

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TLS certificate

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