YouTube is rolling out thumbnail A/B testing to all channels, letting you optimize videos for higher watch time. YouTube is rolling out thumbnail A/B testing to all channels. It lets you test up to ...

A / B testing for thumbnails is rolling out more widely. A / B testing for thumbnails is rolling out more widely. is a senior reporter covering technology, gaming, and more. He joined The Verge in ...

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What Makes You Click? YouTube Rolls Out Thumbnail Testing to Nearly All Creators You're not seeing things. The thumbnails on YouTube videos could be changing more frequently as the site's Thumbnail ...