When you are steering web traffic, the PAC file includes a set of domains to be excluded from the proxy so that users can access domains that do not work with the proxy, such as cert-pinned apps. Lookout provides a default domain and IP exclusion list for the known domains.

To add more exclusions, create a custom category in the Management Console for those domains or URLs and add them to the proxy exclusion list as a custom domain list. For more information about custom categories, see the section Category Management.