What Is Click-Through Rate (CTR)?
Short answer
Click-through rate (CTR) is the percentage of people who click your result after seeing it: clicks divided by impressions. It measures how compelling your listing is in its context, and in the zero-click era it must be read alongside where and how often you appear at all.
Click-Through Rate (CTR) explained
CTR isolates one step of the visibility funnel: given an appearance, did it earn the click? In search, the levers are the listing itself, title tags that promise something specific, meta descriptions that hook, URLs that reassure, rich results that add real estate, relative to position and the features around it. Expected CTR falls steeply by position and is reshaped by the page's furniture: ads, packs, snippets, and AI Overviews all change what any position is worth.
Interpretation requires context more than ever. Pew Research Center's session tracking found clicks on traditional results dropping from 15% to 8% when an AI summary is present, which means CTR declines often reflect the results page changing, not the listing failing. The diagnostic split matters: falling CTR at stable position and stable features suggests a listing problem worth fixing; falling CTR alongside new answer features suggests the impression is doing its work upstream of any click, and the presence metrics need to sit beside the click metrics.
Used well, CTR is an optimization loop: Search Console exposes query-level impressions and clicks, low-CTR pages with high impressions are rewrite candidates, and title and description tests are among the cheapest wins in SEO. Used naively, it becomes a panic metric in an era structurally reducing clicks.
In practice
CTR work is one of my favorite quick wins: pull the high-impression, low-click queries from Search Console, rewrite the titles and descriptions to actually promise the answer, and watch pages gain traffic with no ranking change. The modern half of my counsel is diagnostic honesty: before treating a CTR drop as failure, check what the results page now looks like for the query. If an AI Overview moved in, the fix isn't a better meta description; it's becoming a source the Overview cites.
Common misconception
People often read every CTR decline as a listing problem to optimize. Results-page composition drives much of CTR now, and a drop that coincides with new answer features calls for a presence strategy on top of better titles.
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