Six Apart Advertising is leading in Top 10K Sites and Top 100K Sites.
Six Apart Advertising has better usage coverage in more websites categories. Including Arts & Entertainment, People & Society, News & Media, Computer & Electronics and 57 other categories.
Vertical Acuity is leading in Rugby.
Six Apart Advertising is leading in most countries, including United States, Brazil, France, Germany and 11 other countries.
Vertical Acuity is leading in Canada, Hungary and Ukraine.