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, Humor and 54 other categories.
Testnet is leading in Soccer, Autos & Vehicles and Automotive Industry.
Six Apart Advertising is leading in most countries, including United States, India, United Kingdom, Turkey and 11 other countries.
Testnet is leading in Belgium.