SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ec2-54-254-72-219.ap-southeast-1.compute.amazonaws.com
SSL/TLS Certificate
SSL/TLS Certificate for ec2-54-254-72-219.ap-southeast-1.compute.amazonaws.com
Hostname mismatch- Issued by (CA)
- Let's Encrypt
- Subject
- agtgenetics.com
- Valid from
- Jun 27, 2026
- Valid until
- Sep 25, 2026 (57 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05D0DD555AA4D85F43D272F80D8DE676FBC2
- SHA-256 fingerprint
- 79:A5:1A:62:A9:47:50:F3:F7:F6:F4:6C:16:39:9B:8E:E0:9E:4E:78:7F:BF:16:1E:68:4C:CC:A8:F6:48:CC:66
- Chain
- YR1 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by ec2-54-254-72-219.ap-southeast-1.compute.amazonaws.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ec2-54-254-72-219.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, DNSSEC, CNAME 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.