4 ms·

Really? How does content in <div> tags not get filtered out as well, or does it?

• ivank 11y ago
  The filter list will block the div by id, class, or by its position among some other containing element.
  • knd775 11y ago
    But how does it know that it is an ad? Some advanced heuristics?
    • jordigh 11y ago
      Filter lists are curated by humans. It's an arms race between two smart groups.
    • ivank 11y ago
      It's all manual. Someone sees it and submits the item into the EasyList blocklist: https://easylist.adblockplus.org/ https://easylist.adblockplus.org/ - it looks like http://forums.lanik.us/ http://forums.lanik.us/ is used for reporting items to block or unblock.
  • zeeshanm 11y ago
    Probably adblockers keep a dictionary of filters for blocking native ads.