SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
teng-ta.com.tw
SSL/TLS Certificate
SSL/TLS Certificate for teng-ta.com.tw
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- www.teng-ta.com.tw
- Valid from
- Oct 5, 2026
- Valid until
- Jan 3, 2027 (61 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05580D66A92EB149EC6ABF721BBA99B08EEB
- SHA-256 fingerprint
- A4:A1:6C:DD:36:0E:34:45:90:97:32:B9:AC:83:04:57:D1:7C:C3:41:76:D7:7D:FF:15:90:C0:4C:C0:46:12:07
- Chain
- YR1 → Root YR → 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 9, 2026.
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Uptime
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DNS changes
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TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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