Some YouTube users with ad blockers are seeing a new three-strikes popup menu while watching videos. “The popup menu in the screenshot suggests users will be barred from YouTube viewing after watching three videos with an ad blocker enabled,” reports Android Authority. From the report: “It looks like you may be using an ad blocker. Video playback will be blocked unless YouTube is allowlisted or the ad blocker is disabled,” reads an excerpt of the screenshot. The service presents users with two buttons, prompting them to either allow ads in their ad blocker or letting them buy YouTube Premium. YouTube confirmed to The Verge that it’s currently running “a small experiment globally that urges viewers with ad blockers enabled to allow ads on YouTube or try YouTube Premium.”