SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ec2-54-75-166-140.eu-west-1.compute.amazonaws.com
SSL/TLS Certificate
SSL/TLS Certificate for ec2-54-75-166-140.eu-west-1.compute.amazonaws.com
Hostname mismatch- Issued by (CA)
- Amazon
- Subject
- stage-zakat-api.unhcr.org
- Valid from
- Jun 22, 2026
- Valid until
- Jan 5, 2027 (51 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05B135D77B744C60A0CD72462F1EBD7C
- SHA-256 fingerprint
- CB:09:0C:E6:10:B7:2B:D4:76:4E:FA:CC:50:C8:1D:33:2A:F8:39:55:7F:EA:BD:19:B4:45:3A:80:07:3A:D2:9E
- Chain
- Amazon RSA 2048 M01 → 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 5, 2026.
Never get surprised by ec2-54-75-166-140.eu-west-1.compute.amazonaws.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ec2-54-75-166-140.eu-west-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.