SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
aat-test.org.uk
SSL/TLS Certificate
SSL/TLS Certificate for aat-test.org.uk
Hostname mismatch- Issued by (CA)
- Amazon
- Subject
- actuateui.eu
- Valid from
- Sep 16, 2026
- Valid until
- Apr 1, 2027 (142 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 07C672A1D9BDD67F35B04E44D96EE303
- SHA-256 fingerprint
- 68:E1:70:B4:58:12:CE:D9:BB:F0:3E:01:E8:58:4E:FD:F8:EE:18:06:B0:03:B0:B0:15:19:92:80:48:D6:1E:F6
- 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.
This certificate has been served since Oct 18, 2026.
Never get surprised by aat-test.org.uk's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch aat-test.org.uk 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.