Sophos Firewall: How to block advertisement on web via web filtering

Disclaimer: This information is provided as-is for the benefit of the Community. Please contact Sophos Professional Services if you require assistance with your specific environment.

This Recommended Read is a guide on blocking advertisements on websites, not the advertisements played while streaming videos on YouTube or any other platform like YouTube.

Create a Web Policy

[Path: Protect > web > Policies > Add policy > Add rule]
Under the activities > Category > Add > Advertisements and Auctions & Classified Ads
with action HTTP as block and HTTPS as block and turn on the status of the rule:

Firewall rule settings

Go to Protect > Rules and Policies
In the rule where you want to use the policy you just created.
Note: I haven’t applied HTTP and HTTPS scanning in my scenario. However, I am using the " web proxy instead of DPI" option, as shown in the following snapshot.

Impacts of HTTPS Decrypt and Scan


Sample Screenshots:

  • Policy Is "Not" Applied

  • Policy is "Applied"

Using log viewer to confirm traffic is being blocked

I hope this Recommended Reads has helped you achieve your requirements and clarified your doubts.

Revamped RR Corrected Font Size and Grammar Added Horizontal Lines ^EO Added bottom Horizontal Line
[edited by: emmosophos at 11:34 PM (GMT -8) on 23 Nov 2023]