Comparing Search Volumes Between Google Search Console Vs Google Keyword Planner

There are two sources of keyword search volume data that come directly from Google: Google Search Console (GSC) and Google Keyword Planner (GKP). ahrefs decided to compare the numbers between the two and see how much they align.

They found that GKP almost always overestimates “true” search volume and dives into some of the reasons for this.