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 80 other categories.
Six Apart Advertising is leading in People & Society, Arts & Entertainment, News & Media, Humor and 27 other categories.
Microsoft adCenter Conversion is leading in most countries, including United States, United Kingdom, France, Canada and 27 other countries.
Six Apart Advertising is leading in Indonesia, Denmark, China, Sweden and one other country.