SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ec2-52-52-68-15.us-west-1.compute.amazonaws.com
SSL/TLS Certificate
SSL/TLS Certificate for ec2-52-52-68-15.us-west-1.compute.amazonaws.com
Hostname mismatch- Issued by (CA)
- Internet2
- Subject
- research.ceb.com
- Valid from
- Oct 19, 2026
- Valid until
- May 6, 2027 (177 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 5A68C2958D0006273281AA839E3CD5
- SHA-256 fingerprint
- C1:E4:4F:3B:B1:FB:D9:4B:46:15:5A:EB:A3:B5:2E:E7:E1:0B:D3:75:3E:71:52:38:99:AD:68:19:43:6C:17:C3
- Chain
- InCommon Intermediate CA - OVG2C → emSign Root TLS CA - G1 → emSign Root CA - G1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by ec2-52-52-68-15.us-west-1.compute.amazonaws.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ec2-52-52-68-15.us-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.