SSL/TLS Certificate Lookup

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

messtechnik.pl

SSL/TLS Certificate

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SSL/TLS Certificate for messtechnik.pl

Valid
Issued by (CA)
Let's Encrypt
Subject
messtechnik.pl
Valid from
Jun 11, 2026
Valid until
Sep 9, 2026 (49 days remaining)
Public key
RSA 2048-bit
Serial
0645B9AC3F7E6B5720FD5CCCEAEE9CD70037
SHA-256 fingerprint
83:C7:85:B1:DF:18:70:03:E5:BE:44:F9:49:21:38:31:95:F1:AE:50:D5:40:BF:B2:03:1B:CF:85:5D:72:68:1F
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (2)
messtechnik.pl, www.messtechnik.pl

Certificate Authority Authorization (CAA)

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