github.com/redundancy/cdntest (go): CDN Test is a program intended to be distributed to the users of a service, in order to help debug connection issues to a CDN (which frequently seem to involve ISPs with congested routes)  It is currently based mainly around the debugging of CloudFront requests, which helpfully already provide a source of helpful information: http://d7uri8nf7uskq.cloudfront.net/CustomerTesting.html  Rather than require a user to be quite technically competent and install or use multiple tools, cdntest aims to reduce the work required by the end user to downloading a single tool, and running it with an endpoint file to download, then producing output in a file (and on the console) that the user can attach to a report.
Keywords: aws-cloudfront|cdn|certificate|dns|http|https