What is Post-Click Conversion Rate?
Post-Click Conversion Rate is the percentage of people who click an ad and then go on to complete a desired action on the destination page or site. It isolates the performance of the landing experience itself, separate from the ad's ability to generate a click in the first place.
TL;DR
Post-Click Conversion Rate measures how many people who clicked an ad actually completed the goal on the landing page, isolating the landing experience from how good the ad was at earning the click.
Formula
Post-Click Conversion Rate = (Conversions / Clicks) × 100
Why It Matters
Post-Click Conversion Rate matters because it answers a different question than click-through rate does, and confusing the two leads teams to fix the wrong part of a campaign. A campaign with a strong CTR but a weak post-click conversion rate doesn't have an ad problem, it has a landing page or offer problem, and no amount of better ad creative will fix that. Separating these two metrics is what lets a team correctly diagnose whether underperformance is happening before or after the click, which determines whether the fix belongs with the creative team or the landing page team.
Example
An ad generates 5,000 clicks to a landing page, and 150 of those visitors complete a signup. Post-click conversion rate is 150 divided by 5,000, times 100, which equals 3%. If the ad's click-through rate stays flat but a redesigned landing page raises post-click conversion rate to 4.5%, the improvement is attributable entirely to the destination experience, which is why post-click conversion rate is tracked separately from CTR when diagnosing whether a weak campaign needs better ad creative or a better landing page.
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