YouTube is sending a clear message to those using third-party apps to bypass advertisements: the party might be over.

The video giant has announced it will be ramping up enforcement of its Terms of Service against apps that specifically target ad-blocking.

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“We’re strengthening our enforcement on third-party apps that violate YouTube’s Terms of Service, specifically ad-blocking apps… Viewers using these third-party apps may experience buffering issues or see the error ‘The following content is not available on this app’ when trying to watch a video. We want to emphasize that our terms don’t allow third-party apps to turn off ads because that prevents the creator from being rewarded for viewership, and Ads on YouTube help support creators and let billions of people around the world use the streaming service.”

YouTube also reiterated its paid membership, YouTube Premium, as the legitimate way to experience the platform ad-free.

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