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Add a video about ad blocking
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sonya-orlova committed Sep 11, 2023
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Expand Up @@ -11,6 +11,8 @@ We don't cover DNS filtering here. It's a different way of blocking ads, with it

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<iframe width="560" height="315" class="youtube-video" src="https://www.youtube-nocookie.com/embed/Xq_CUdh0T_w" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>

## General principle

Filter lists, also called filters, lie at the core of any ad blocker. Filters are literally lists of rules written in a special syntax. Ad blockers can understand this complex syntax. They interpret filtering rules and perform actions on web traffic based on what the rules tell them to do: block specific elements, alter web pages in certain ways, etc.
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