SSL/TLS Certificate Lookup

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

spreng.ch

SSL/TLS Certificate

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SSL/TLS Certificate for spreng.ch

Valid
Issued by (CA)
Let's Encrypt
Subject
spreng.ch
Valid from
May 24, 2026
Valid until
Aug 22, 2026 (31 days remaining)
Public key
RSA 2048-bit
Serial
0550D80BCC75B15112265F95873310345FF4
SHA-256 fingerprint
A4:60:23:FE:BD:4A:08:7A:CF:14:B4:69:9D:09:7C:04:52:BB:F4:A8:D9:30:0E:55:E3:50:BF:EB:AC:94:46:C4
Chain
R12 → ISRG Root X1
Subject Alternative Names (2)
spreng.ch, www.spreng.ch

Certificate Authority Authorization (CAA)

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