SSL/TLS Certificate Lookup

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

zchen.com.tw

SSL/TLS Certificate

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SSL/TLS Certificate for zchen.com.tw

Expired
Issued by (CA)
Let's Encrypt
Subject
sms2.aea2e.com
Valid from
May 18, 2025
Valid until
Aug 16, 2025 (expired 339 days ago)
Public key
RSA 2048-bit
Serial
06E451EFB4D3DAC6483967760371B34478B5
SHA-256 fingerprint
D4:8D:91:50:C3:C8:34:18:8A:91:47:9E:F0:8A:C5:B6:16:7D:2C:34:43:E6:71:A3:8E:E7:31:32:E9:80:09:A7
Chain
R10 → ISRG Root X1
Subject Alternative Names (1)
sms2.aea2e.com

Certificate Authority Authorization (CAA)

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