SSL/TLS Certificate Lookup

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

heisko.com

SSL/TLS Certificate

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SSL/TLS Certificate for heisko.com

Valid
Issued by (CA)
Let's Encrypt
Subject
heisko.com
Valid from
Jun 14, 2026
Valid until
Sep 12, 2026 (52 days remaining)
Public key
EC 256-bit
Serial
056ED10CD084BD08EBFB7702451B1B0D69B3
SHA-256 fingerprint
AF:A3:9F:CC:90:03:F8:37:D6:63:5B:98:59:2C:93:98:02:3A:32:47:DE:AC:B3:E4:97:32:39:4B:49:FB:62:D6
Chain
YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (2)
heisko.com, www.heisko.com

Certificate Authority Authorization (CAA)

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