Provide Feedback as to if CDN can reach origin url.
Right now you need to wait 90 minutes or so (potentially) if you are getting 404 errors on content. It would be nice to have some kind of visual feedback on the endpoint configuration page if the origin url was reachable from Azure.
With Azure CDN from Verizon it takes up to 90 minutes for configuration for a new CDN endpoint to propagate to all worldwide CDN POPs. For a new endpoint you will get back 404 errors until the configuration has propagated to the CDN POP that you are making requests to. We are working with Verizon to reduce this propagation time and also working with them so that we can deterministically provide feedback via API and UI when this propagation has completed.
With Azure CDN from Akamai CDN endpoints are typically created in under a minute and the status of via API and UI accurately reflects when endpoint configuration has completed.