Click-through rate (CTR)
Definition
The percentage of people who click your video after seeing its thumbnail and title — a measure of how compelling your packaging is.
Click-through rate (CTR) is the share of impressions that turn into clicks. It measures your packaging — the thumbnail and title — not the video itself.
High CTR with low watch time signals clickbait and hurts you; the two must work together. Improve CTR with one clear focal point, high contrast and curiosity. See thumbnail design for higher CTR.