SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ec2-18-142-129-196.ap-southeast-1.compute.amazonaws.com
SSL/TLS Certificate
SSL/TLS Certificate for ec2-18-142-129-196.ap-southeast-1.compute.amazonaws.com
Hostname mismatch- Issued by (CA)
- Amazon
- Subject
- *.ap-southeast-1.es.amazonaws.com
- Valid from
- Dec 4, 2025
- Valid until
- Jan 1, 2027 (51 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0B263B0D7BF04D6806A7B02CB320D0E3
- SHA-256 fingerprint
- E7:C0:A4:A2:1A:BC:52:7A:00:4A:5F:FF:51:36:70:F1:12:59:F1:AB:4D:03:27:18:B6:24:6B:11:9D:A0:C7:9E
- Chain
- Amazon RSA 2048 M01 → Amazon Root CA 1 → Starfield Services 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 ec2-18-142-129-196.ap-southeast-1.compute.amazonaws.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ec2-18-142-129-196.ap-southeast-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.