what is impression click through rate

Impression click-through rate (CTR) is a metric that measures how often viewers watched a video after seeing a registered impression on YouTube. It is the percentage of impressions that resulted in a click. Impressions are the amount of times a video is recommended or shown by YouTube to potential viewers. A high impression CTR means that a high percentage of viewers who saw the video thumbnail and title clicked on it to watch the video. The average impression CTR on YouTube ranges between 2% and 10% . However, the impressions CTR will vary based on the type of content, audience, and where on YouTube the impression was shown. It is important to note that not all impressions are counted in this metric, such as those on external websites or end screens.