Quick answer
Click-through rate (CTR) is the share of people who saw an ad and clicked it: clicks divided by impressions. It measures how well a creative earns a click, and says nothing about who clicked or what they did next.
Click-through rate
DefinitionCTR is the quickest read on a creative. Two cards shown to the same audience with different rates tell you which headline or cover worked. Compared across channels it is nearly meaningless, because the audiences, the formats and the positions differ, and because a click from a curious scroller counts the same as one from a developer who needed the tool.
Also called: CTR.
What is CTR good for?
Comparing creatives on the same audience. Two cards shown to the same developers with different rates tell you which headline or cover earned the click; swap the loser and test again. It is also an early warning: a card whose rate is high and whose visitors leave in seconds is promising something the page does not deliver.
That is the whole list. CTR does not say who clicked, whether they were developers, or what they did next, and it cannot be compared across channels, formats or positions, because each has its own baseline.
Why do developers click less, and why does it not matter?
Developers read the card, remember the company, and visit later: through the docs, a search, a colleague, or by typing the address. The response to a good post shows up as follows on the company page, reads of the next post, and sign-ups days or weeks later, more than as immediate clicks. A developer campaign with a modest rate and strong follows and delayed sign-ups is working; one with a high rate and nothing after it is attracting the wrong people.
This is why the units that matter are downstream: reads, follows, and cost per activated developer with a weeks-long window.
Common mistakes
- Comparing CTR across channels with different formats and audiences.
- Optimising for CTR and rewarding clickbait.
- Declaring a creative winner on a handful of clicks.
- Judging a developer campaign on clicks when the response arrives as follows and later sign-ups.
How developers experience it
- They decide in a second whether the headline is for them.
- They remember the company more often than they click it.
- A headline that overpromises costs the company the next click too.
How should you run a creative test with CTR?
- Same audience, same week, three or four variants on the same message.
- Change one thing between variants: the headline, or the cover, not both.
- Wait for enough clicks that the difference is not noise.
- Check the exit rate of the winner, so a misleading card does not win.
- Promote the winner, write the next challenger from what it taught you.
On daily.dev the campaign manager runs this rotation as part of the plan and reports which card developers read.
What should the report show beside CTR?
Reads, so you know the card was read even when it was not clicked. Follows, so you see the audience was right. Clicks and the exit rate of the landing page. Sign-ups, activations and view-through conversions from the pixel, with their window. CTR then sits where it belongs: a creative signal in the middle of a chain that ends in activated developers.
On daily.dev
How it works on daily.dev
daily.dev reports clicks alongside reads, upvotes, follows and the conversions your conversion pixel records, so you see the whole response rather than the click alone. Our team tests In-Feed Ads variants with you to find the card developers respond to.
Explore my optionsCTR vs engagement rate vs conversion rate
| Capability | Click-through rate | Engagement rate | Conversion rate |
|---|---|---|---|
| Formula | Clicks ÷ impressions | Reads, upvotes, comments, follows ÷ reached | Sign-ups or activations ÷ visits or reached |
| Tells you | Which creative earns a click | Whether the audience paid attention | Whether the right people arrived and the page worked |
| Comparable across channels? | No | Within a platform | Yes, with the same window |
| Gamed by | Clickbait | Controversy | Hard to game |
| Use it to | Test creatives | Judge relevance | Judge the channel |