SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
yes-es.com.tw
SSL/TLS Certificate
SSL/TLS Certificate for yes-es.com.tw
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- www.igate.tw
- Valid from
- Mar 23, 2026
- Valid until
- Jun 21, 2026 (expired 108 days ago)
- Public key
- RSA 4096-bit
- Serial
- 0664A9AAFCACFB3F5D546681C833BF8E1482
- SHA-256 fingerprint
- BB:C8:5E:B5:D6:73:7B:7E:7E:26:B0:D7:11:6D:85:3B:6F:43:44:52:47:94:96:46:E1:0F:BB:58:C8:A7:12:EE
- Chain
- R13 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Oct 6, 2026.
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TLS certificate
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