AnswerEvery time you create or edit a policy that should apply to Websites or Applications you have the option to set the Filter by Reputation option. By default the entire range of the index is set to be applied to every policy, but there are situations that you may need to change those values.
First off, the Filter by Reputation works with a range from 1 to 4, that matches the index reputation of a page from 100 to 0. Thus, 1 means a site with a very good or high reputation and 4 means a site with very bad or low reputation. In the logic of the policies, it works with an "AND" connector. So, the policy must apply to the user AND to the website AND be within the filter range.
All the policies have the full range of the index set to be applied in any policy by default, but it can be adjusted accordingly. Both arrows with the minimum and maximum values can be moved. A policy applies to sites or application that match the values set there. In the picture above you can see that all values are selected, so it means that no matter what the index is, the policy is applied.
Now, for example I can have a policy to allow certain categories, but you want to block the low index reputation. In this case you would set the minimum at 1 and maximum at 2. (See the picture below). In this case, the policy is set to allow, but it will only apply to sites that have a index withing the range set on the policy.
Another situation what would be useful to use the Filter by Reputation adjustment is when you have a policy to block malicious sites, but would like to make an exception for sites that have a good reputation. In this case, you would set the filter with minimum value of 3 and maximum of 4. (See picture below). In that case the sites that have a very good reputation are not blocked, because their index is not within the range set in the policy.