This tool is accessible when Netskope client is enabled.
From within tenant policies dashboard the tool also gives you other details of significant importance such as which policies or steering exceptions or custom categories the url applies to.
Here is a recommend sequence of configuration tasks when creating a custom URL list.
1. Verify if the URL is part of an existing Netskope category, policy or steering using URL Lookup tab 2. Create a URL list by going to URL Lists tab 3. From custom categories tab attach the custom list to a new or existing custom category as "include" or "exclude" list. 4. Apply the category to a Real-time protection policy