I have an ad blocker installed on chrome and it works pretty much 100% effectively on youtube, but on reddit I always have ads on the side of my screen. Why would it work for some sites and not others? How does it even work in the first place?
In: Technology
Adblockers have a list of websites and HTML elements within those websites that contain ads. When you load a page, it checks its reference list, and then deletes the elements that contain the ads. If there’s an ad in an element that isn’t listed, it won’t get deleted.
Most adblockers have a function where you can add to the list by right clicking on an ad and telling it to block it. This just adds it to the list.
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