CDN Finder
Quickly and easily identify all the CDNs a website is using. Or lookup the CDN for a single URL or hostname!
CDN Performance Checker
Instantly check your CDN for timeouts, errors and caching issues from 10 locations around the globe.
EDNS Client Subnet Checker
Does your CDN support EDNS Client Subnet? Find out with a quick EDNS Client Subnet test.
Initcwnd Checker tool
Currently offlineQuickly measure the initial congestion window (initcwnd) of a CDN (or your web server).