SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ec2-3-106-161-147.ap-southeast-2.compute.amazonaws.com
SSL/TLS Certificate
SSL/TLS Certificate for ec2-3-106-161-147.ap-southeast-2.compute.amazonaws.com
Untrusted chain- Issued by (CA)
- CloudFlare, Inc.
- Subject
- CloudFlare Origin Certificate
- Valid from
- Nov 8, 2026
- Valid until
- Nov 4, 2041 (5472 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 50672362052075D0831B95ADA1F0DEBF0F4FCD21
- SHA-256 fingerprint
- 79:9D:69:EC:2B:B6:90:AE:6B:CE:1D:59:6E:57:2B:36:E5:B8:7B:DB:4D:3F:0C:0A:AC:1F:25:70:36:22:34:57
- Chain
- —
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by ec2-3-106-161-147.ap-southeast-2.compute.amazonaws.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ec2-3-106-161-147.ap-southeast-2.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.