URL filtering ensures that the users of your network cannot access web objects that are considered a risk for web security or are not allowed because they contain inappropriate subject matter or for other reasons.
The filtering process uses blocking lists, category information, and reputation scores for the URLs of web objects and blocks or allows access accordingly.
A default process for URL filtering is implemented on Secure Web Gateway after the initial setup. Important configuration items used in this process include:
- URL Filtering rule set — Default rule set for URL filtering
- Dynamic Content Classification rule set — Default rule set supporting the URL filtering process
The rules in this rule set categorize web objects based on the analysis of the Dynamic Content Classifier component when other URL filtering methods yield no results.
- URL Filter settings — Default settings for the URL Filter module, which handles the retrieval of category information and reputation scores from intelligence systems.
These settings also include options for configuring the Dynamic Content Classifier.
The default process requires that you maintain the block lists used by the rules in the URL Filtering and
Dynamic Content Classification rule sets. You can further modify this process to meet the requirements of your organization.
You can also extend the process in several ways or set up a process of your own.