Struggling with low click-through rates? Find out why your YouTube thumbnails are failing and how to fix them fast in this post. We dive deep into a YouTube thumbnail test and compare which YouTube thumbnails get more clicks. Whether you design thumbnails in Canva, Photoshop, or use AI, this tutorial covers everything from the right YouTube thumbnail size to advanced design tips. Learn how to improve your thumbnail design, use templates, and optimize your videos for more views and engagement!