Reported about 1 year ago
According to reports, YouTube is testing new anti-ad blocking technology to prevent ad blockers, by loading ads directly onto the server-side rendering ad blockers useless. The official indirectly confirmed the existence of this new technology. Some video creators worry this technology may affect the timeline feature, disrupting the viewing experience. YouTube's ongoing efforts to combat ad blockers have led to user backlash, but their Premium subscriptions surpassed 100 million users, indicating some success in combating ad blockers.
Source: YAHOO