GSI Media is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Six Apart Advertising has better usage coverage in more websites categories. Including Arts & Entertainment, People & Society, News & Media, Computer & Electronics and 60 other categories.
GSI Media is leading in Children, Sports, Adult and Home & Garden.
Six Apart Advertising is leading in most countries, including United States, Germany, India, Japan and 13 other countries.
GSI Media is leading in Israel.