SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

ec2-44-230-47-188.us-west-2.compute.amazonaws.com

SSL/TLS Certificate

SSL/TLS Certificate for ec2-44-230-47-188.us-west-2.compute.amazonaws.com

Hostname mismatch
Issued by (CA)
Amazon
Subject
*.a5.prod2.jazelc.com
Valid from
Oct 12, 2025
Valid until
Nov 9, 2026 (108 days remaining)
Public key
RSA 2048-bit
Serial
029EEE7E55D92E0835269495B2FD1B05
SHA-256 fingerprint
B2:68:67:C5:C6:CF:09:59:8D:5D:94:FE:40:5E:BE:82:08:54:C4:7D:E0:73:65:85:9C:93:59:10:8D:2F:6C:BD
Chain
Amazon RSA 2048 M04 → Amazon Root CA 1 → Starfield Services Root Certificate Authority - G2
Subject Alternative Names (1)
*.a5.prod2.jazelc.com

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

Never get surprised by ec2-44-230-47-188.us-west-2.compute.amazonaws.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch ec2-44-230-47-188.us-west-2.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.

Monitor this certificate free

Free for your first domain: uptime, DNS, and certificate together. No credit card.