What is the primary function of Keyword Planner in Google Ads?

The primary function of Keyword Planner in Google Ads is to find new keywords and forecast their performance. This tool allows advertisers to discover potential keywords that are relevant to their business and measure how these keywords may perform in terms of traffic and competition. By analyzing keywords, advertisers can identify search volume data, suggested bid estimates, and trends, which are essential for building an effective advertising strategy. The insights gained from Keyword Planner help in selecting the right keywords to target, thus improving ad performance and relevancy to user searches.

While other options refer to important aspects of advertising, they do not pertain specifically to the functionality of Keyword Planner, which focuses on keyword research and performance projection.