Microsoft adCenter Conversion is leading in Top 1M Sites.
Microsoft adCenter Conversion has better usage coverage in more websites categories. Including Business & Industry, Shopping, Health, Computer & Electronics and 87 other categories.
Six Apart Advertising is leading in Arts & Entertainment, People & Society, News & Media, Humor and 26 other categories.
Microsoft adCenter Conversion is leading in most countries, including United States, United Kingdom, Canada, France and 25 other countries.
Six Apart Advertising is leading in Zambia, Uruguay, Viet Nam, Saudi Arabia and one other country.