SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
eletang.com.tw
SSL/TLS Certificate
SSL/TLS Certificate for eletang.com.tw
Valid- Issued by (CA)
- Google Trust Services
- Subject
- eletang.com.tw
- Valid from
- Oct 6, 2026
- Valid until
- Jan 4, 2027 (61 days remaining)
- Public key
- EC 256-bit
- Serial
- 084F38254E642C330EFD6D53B1CC7EEB
- SHA-256 fingerprint
- 5A:7E:9D:ED:F5:DE:A9:BD:3C:00:1F:C7:E4:8D:5F:A6:40:DF:69:95:E6:1C:6B:89:D3:59:B2:38:07:F6:D6:3B
- Chain
- WE1 → GTS Root R4
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 Sep 25, 2026.
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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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