Click-through rate (CTR)
Why it matters
Click-through rate is the bridge between being seen and being visited. Plenty of impressions with few clicks means the headline, image, subject line or offer is not pulling. A healthy rate with weak sign-ups means the problem sits further down, on the landing page or in the offer itself. That makes it one of the quickest ways to tell whether a problem belongs to the message or to the page behind it.
How to apply it
- Calculate it per channel and per campaign, never as one blended figure.
- Judge the trend over a week or more, not a single day.
- Change one thing at a time: headline first, then image, then the call to action.
- Compare like with like. A rate for search ads says little about a newsletter link.
- In email, treat opens with care. Apple Mail Privacy Protection can register opens that no person made, so clicks are the sturdier signal.
- Write link text that says what the reader gets, and place the main link near the top.
What it is
Click-through rate measures how often a view turns into a click. For ads, search results and social posts it is clicks divided by impressions, multiplied by 100. For email it is clicks divided by emails delivered. If an ad is shown 5,000 times and 100 people click, the rate is 2 per cent.
The denominator changes the meaning, so always check which one a report uses. Some email tools also show a click-to-open rate, which divides clicks by opens instead of by delivered emails. It tells you how good the content was for those who opened, but it is a different number and should not be compared with plain click-through rate.
Common mistakes
- Chasing clicks with a misleading headline. Clicks that bounce straight away cost money and teach the ad platform the wrong audience.
- Reading a high rate from a tiny number of impressions as proof of anything.
