The click-through rate () is the ratio of clicks to impressions in search. If a result gets 100 impressions and 5 clicks, the CTR is five percent.

CTR depends heavily on position: top spots usually receive far more clicks. But it is also influenced by:

  • the and ,
  • the match with ,
  • features such as or ,
  • the number of ads.

An important distinction: if the CTR drops while the position stays stable, the problem usually lies not in the ranking but in the or the SERP layout. Better titles and descriptions are then often a quick lever to win more clicks from existing rankings. CTR is measured most reliably over a longer period in Google Search Console.