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CDN Tools

Content delivery network tools like CDN Finder and Initcwnd Checker.

CDN Performance Checker tool

Instantly check your CDN's performance from 10 locations around the globe. Test from people's homes, not datacenters!
Try the CDN Performance Checker tool!

Initcwnd Checker tool

Quickly measure the initial congestion window (initcwnd) of a CDN.
Try the Initcwnd Checker tool!

CDN Finder tool

Quickly and easily lookup the names of all CDNs a website is using. Or do a single hostname lookup!
Try the CDN Finder tool!