About Blocking URLs
Blocking URLs ensures that users who work with cloud services cannot access web objects that are considered a risk for web security or are not allowed because they contain inappropriate subject matter or still for other reasons.
Currently, the databases that we are retrieving blocking information from include more than 400 million entries, which correspond to billions of categorized URLs.
The URL filtering process uses this category information, together with reputation scores and blocking lists to block or allow web access.
For more information about how to configure the rules of the URL filtering process, see Block URLs for Inappropriate Websites.