SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ec2-54-74-18-12.eu-west-1.compute.amazonaws.com
SSL/TLS Certificate
SSL/TLS Certificate for ec2-54-74-18-12.eu-west-1.compute.amazonaws.com
Hostname mismatch- Issued by (CA)
- Amazon
- Subject
- *.resova.co.uk
- Valid from
- Oct 26, 2025
- Valid until
- Nov 24, 2026 (98 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 04C6DAF4443404E8F8397F7D0FDD4656
- SHA-256 fingerprint
- E0:8F:9C:7D:2A:B6:4C:B2:D7:22:6D:E6:68:71:FD:F7:4D:A2:44:20:A6:C0:CC:15:78:73:70:34:FC:60:B4:ED
- 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.
Never get surprised by ec2-54-74-18-12.eu-west-1.compute.amazonaws.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ec2-54-74-18-12.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, 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.