Click-through rate (CTR) on YouTube is the percentage of people who clicked on a video after seeing its thumbnail. It is an important metric for content creators to focus on because it can send positive or negative signals to YouTubes video recommendation system. A high CTR rate prompts more reach, while a low CTR means that people wont see your videos in their suggestions. CTR is shown in your analytics in the form of a percentage, and you can see an overall number for your whole channel or you can narrow it down to a percentage per video. To understand whether these numbers are good or bad, you first need to talk about impressions. Impressions are the amount of times your video is recommended or shown by YouTube to potential viewers. Half of all channels and videos on YouTube have an impressions CTR that can range between 2% and 10% .