SSL/TLS Certificate Lookup

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

comenius.nl

SSL/TLS Certificate

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SSL/TLS Certificate for comenius.nl

Valid
Issued by (CA)
Let's Encrypt
Subject
comenius.nl
Valid from
Jul 3, 2026
Valid until
Oct 1, 2026 (72 days remaining)
Public key
EC 256-bit
Serial
05BE8D6F29B70BEFEF1634D83AA2CA07EE73
SHA-256 fingerprint
8B:BD:CB:74:D0:62:2C:59:57:0E:CC:82:0B:A2:DE:A8:E4:94:8B:69:25:A2:0E:54:B2:FC:CB:BC:DE:29:B0:41
Chain
YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (1)
comenius.nl

Certificate Authority Authorization (CAA)

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