Home › Google Adwords Question Frequency capping gives advertisers the ability to specify a limit to the number of: By · Tuesday, November 18, 2014 Frequency capping gives advertisers the ability to specify a limit to the number of: Answer - Impressions for a unique user Google Adwords Question GA Gaurav Arora, Digital Media Lead. 10+ years running paid media and tracking for brands in the USA, UK and Canada.