Chapter 15 Security Profiles : Web filter : FortiGuard Web Filtering Service : FortiGuard Web Filter and your FortiGate unit : FortiGuard Web Filter Actions
  
FortiGuard Web Filter Actions
The Possible Actions are:
Allow permits access to the sites within the category.
Monitor permits and logs access to sites in the category. You may also enable user quotas when enabling the monitor action.
Warning presents the user with a message, allowing them to continue if they choose.
Authenticate requires a user authenticate with the FortiGate unit before being allowed access to the category or category group.
Block prevents access to sites within the category. Users attempting to access a blocked site will receive a replacement message explaining that access to the site is blocked.
The choices of actions available will depend on the mode of inspection.
Proxy - Allow, Block, Monitor, Warning, Authenticate & Disable.
Flow-based - Allow, Block & Monitor.
DNS - Allow, Block & Monitor.
Figure 225: Webfiltering flowchart