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 91 other categories.
Testnet is leading in Cooking & Recipes and Automotive Industry.
Microsoft adCenter Conversion is leading in most countries, including United States, United Kingdom, France, Canada and 26 other countries.
Testnet is leading in Belgium.