SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ta-fa.com.tw
SSL/TLS Certificate
SSL/TLS Certificate for ta-fa.com.tw
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- ta-fa.com.tw
- Valid from
- Jul 3, 2026
- Valid until
- Jan 17, 2027 (77 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 9F2D471FF502E85F9578E6DE2216AE80
- SHA-256 fingerprint
- 9E:70:58:A4:88:CA:CD:26:56:3E:1E:FB:F6:6A:0B:A9:86:98:17:48:ED:84:A3:87:2F:11:D4:3F:AD:52:D9:FE
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Certificate Authority Authorization (CAA)
The serving CA (Sectigo Limited) is authorized by this domain's CAA records (letsencrypt.org, pki.goog, sectigo.com, ssl.com).
Never get surprised by ta-fa.com.tw's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ta-fa.com.tw continuously, notifying you the moment anything moves across all three signals:
Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
DNS changes
We watch NS, MX, CAA, CNAME, TXT and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
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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