SSL/TLS Certificate Lookup

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

optimix.nl

SSL/TLS Certificate

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SSL/TLS Certificate for optimix.nl

Valid
Issued by (CA)
Let's Encrypt
Subject
optimix.nl
Valid from
Jul 14, 2026
Valid until
Oct 12, 2026 (83 days remaining)
Public key
RSA 2048-bit
Serial
05930CE1FF39C5C5DC19EFBB7C63E84E3841
SHA-256 fingerprint
8F:5F:61:65:C7:F5:99:0F:1B:45:E4:39:C8:F2:05:72:12:C1:6B:F0:52:B6:10:80:3A:85:CB:93:AE:72:AF:5E
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (2)
optimix.nl, www.optimix.nl

Certificate Authority Authorization (CAA)

The serving CA (Let's Encrypt) is authorized by this domain's CAA records (digicert.com, globalsign.com, letsencrypt.org, thawte.com).