SSL/TLS Certificate Lookup

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

mikroelektronika.cz

SSL/TLS Certificate

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SSL/TLS Certificate for mikroelektronika.cz

Valid
Issued by (CA)
Let's Encrypt
Subject
www.mikroelektronika.cz
Valid from
Jun 30, 2026
Valid until
Sep 28, 2026 (69 days remaining)
Public key
RSA 2048-bit
Serial
05DEF46F9DB653504BEBF22521A7B68AF344
SHA-256 fingerprint
F3:D3:0A:E4:6A:47:ED:7A:03:56:9D:5E:74:21:6C:ED:2E:CF:48:4F:28:6B:85:4D:E7:D0:9A:CB:7E:3B:A7:8C
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (2)
mikroelektronika.cz, www.mikroelektronika.cz

Certificate Authority Authorization (CAA)

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