SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ec2-54-65-124-182.ap-northeast-1.compute.amazonaws.com
SSL/TLS Certificate
SSL/TLS Certificate for ec2-54-65-124-182.ap-northeast-1.compute.amazonaws.com
Hostname mismatch- Issued by (CA)
- GoDaddy.com, Inc.
- Subject
- *.throughtek.com.tw
- Valid from
- Feb 26, 2026
- Valid until
- Mar 30, 2027 (134 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 65BE66FD1994740C
- SHA-256 fingerprint
- 77:29:53:B2:68:9E:50:45:B8:7B:48:F1:91:FC:90:19:A2:0B:05:07:4B:F3:33:6D:AC:E3:1E:B5:11:4E:D1:DD
- Chain
- Go Daddy Secure Certificate Authority - G2 → Go Daddy Root Certificate Authority - G2
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by ec2-54-65-124-182.ap-northeast-1.compute.amazonaws.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ec2-54-65-124-182.ap-northeast-1.compute.amazonaws.com 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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.