SSL/TLS Certificate Lookup

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

SSL/TLS Certificate for yu-da.com.tw

Valid
Issued by (CA)
Sectigo Limited
Subject
yu-da.com.tw
Valid from
Jan 29, 2026
Valid until
Mar 1, 2027 (200 days remaining)
Public key
RSA 2048-bit
Serial
05F2D66B1033B659D5BA6B2BDCF1627C
SHA-256 fingerprint
EE:C6:F5:5D:FC:F9:06:B3:11:1C:AD:E7:90:CB:3F:43:14:06:E4:75:B0:89:46:5F:3C:9A:E2:C2:1F:FE:98:EB
Chain
Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Subject Alternative Names (3)
en.yu-da.com.tw, www.yu-da.com.tw, yu-da.com.tw

Certificate Authority Authorization (CAA)

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

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Uptime

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DNS changes

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TLS certificate

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