How to whitelist Edge Cluster IP Addresses

If you have a firewall or other traffic throttling system on your Origin Server, please whitelist our Edge Server IP’s. Please contact support for the IP’s of the CDN edge servers you are provisioned on.

The majority of Linux/Unix servers use software firewalls, such as IPTables and PF. Firewalls can be set up to throttle traffic coming to the web server. This could potentially block one or more of the CDN Network Subnets (edge servers), subsequently preventing the CDN from pulling your content from the origin and caching it. The error we most often see when an Origin is blocking our CDN edge servers, is a 502 Bad Gateway Error.