CTR which stands for click through rate is the ratio between clicks and impressions. It is a commonly used term in online advertising and email campaigns as a way to measure effectiveness.

Dan placed a small banner ad on his website that received 5 clicks in 100 page views for a CTR of 5%. After making the banner ad full screen his CTR increased to 100% but nobody returned to the site.

Added by zazpowered zazpowered almost 9 years ago