Web filtering

When the users of your network submit requests for web access, Web Gateway filters these requests, according to the web security policy that is implemented.

The filtering process also covers responses that are sent back from the web as well as embedded objects sent with requests and responses.

Default filtering

Web filtering includes several fields of web security.

  • Anti-malware filtering — Protects your network against viruses and other malware.

    Filtering is performed based on the results achieved by scanning web objects, for example, files sent from a web server in response to a request.

  • URL filtering — Controls access to web objects based on evaluating their URLs.

    URLs are categorized and can be allowed or blocked according when categories are considered to convey inappropriate content.

  • Media type filtering — Controls access to web objects based on recognizing the media types that they belong to., for example, to exclude downloads consuming overmuch bandwidth

Extended filtering

Several fields of web security belong to web filtering, for example, anti-malware filtering, URL filtering, and media type filtering. Some of them are covered by default rule sets.

  • Global whitelisting — Excludes objects from web filtering
  • HTTPS filtering — Filtering to exclude downloads consuming overmuch bandwidth

By importing more rule sets from the built-in or the online library, you can enlarge coverage of these fields and also extend it to other fields, which are not covered by default.

  • Application filtering — Excludes objects from web filtering
  • Streaming media filtering — Filtering to exclude downloads consuming overmuch bandwidth
  • Data loss prevention — Filtering to exclude downloads consuming overmuch bandwidth