is a common billing model for online advertising, for example in search or display ads. Costs do not arise from showing the ad, but only when a user clicks.

Key characteristics are:

  • the price per click (cost-per-click, CPC) often depends on competition and ad quality,
  • budgets can be controlled per day and per campaign,
  • success is easy to measure, since clicks and follow-up actions are tracked.

PPC is a core part of advertising within . Unlike , PPC takes effect immediately but incurs ongoing costs: once the budget ends, so does the ad visibility. A clear and a suitable landing page are crucial so that clicks are not wasted.