The share of people who saw an ad or a search result and clicked it.
In plain words
CTR is clicks divided by impressions. A higher rate usually means the message matches what people want, but it says nothing about what happens after the click.
Questions to ask a company that offers this
How do you test ads to improve this?
How does CTR relate to sales for my business?
A good company will answer these plainly and in writing. Vague or evasive answers are worth noting.
Explanation last read through on 25 October 2026. It is general guidance in plain language, not advice for your particular project. Tell us if something is wrong or unclear.