SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ec2-52-63-222-42.ap-southeast-2.compute.amazonaws.com
SSL/TLS Certificate
SSL/TLS Certificate for ec2-52-63-222-42.ap-southeast-2.compute.amazonaws.com
Hostname mismatch- Issued by (CA)
- Amazon
- Subject
- gem.deakin.edu.au
- Valid from
- Oct 29, 2026
- Valid until
- May 14, 2027 (187 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 03ACD0EB3F8B176D0BF8EEE9EE88DB52
- SHA-256 fingerprint
- 15:C0:68:56:E2:D1:15:DD:1F:33:AA:1A:7F:CF:B4:DB:77:37:14:3F:36:E6:62:B2:5B:45:93:02:4B:67:6E:65
- Chain
- Amazon RSA 2048 M04 → 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 ec2-52-63-222-42.ap-southeast-2.compute.amazonaws.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ec2-52-63-222-42.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.