Clickthrough rate (CTR) ia the ratio of how many times an advertisement was clicked on, versus how many times it was shown which can help you understand the effectiveness of your ad.
Also known to be The number of clicks received divided by the number of impressions received expressed as a percentage.
For example if you have 5 clicks and 1000 impressions, then your CTR is 0.5%.This can also be thought of as the average likelihood that a user will click on your ad or listing after seeing it. It can be helpful in determining the quality of a listing or ad.
This ratio can be useful when determining whether the messaging matches what the consumer is searching for, and if it resonates with them. A higher click-through-rate means more engagement, which generally leads to more quality conversions.
On social media, the clickthrough rate is the percentage of people that see your post who click on it. What counts as a click and what counts as ‘seeing your post’ vary by social network. On Facebook, CTR is equal to (link clicks / post impressions) x 100%.