SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ec2-52-74-16-12.ap-southeast-1.compute.amazonaws.com
SSL/TLS Certificate
SSL/TLS Certificate for ec2-52-74-16-12.ap-southeast-1.compute.amazonaws.com
Untrusted chain- Issued by (CA)
- CloudFlare, Inc.
- Subject
- CloudFlare Origin Certificate
- Valid from
- May 10, 2024
- Valid until
- May 7, 2039 (4557 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 302022A3A2E4B2C0C2D518F5A4A30C323459C4A7
- SHA-256 fingerprint
- 09:AD:14:14:26:C0:CC:AE:69:76:0C:2C:9B:BD:71:CA:F9:12:B3:2C:EE:85:D3:4A:E7:20:8E:D2:98:38:8D:54
- Chain
- —
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 30, 2026.
Never get surprised by ec2-52-74-16-12.ap-southeast-1.compute.amazonaws.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ec2-52-74-16-12.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.