Optimatic is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Six Apart Advertising has better usage coverage in more websites categories. Including Arts & Entertainment, People & Society, News & Media, Humor and 47 other categories.
Optimatic is leading in Games, Video Games, TV & Video, Marketing & Advertising and 12 other categories.
Optimatic is leading in most countries, including United States, Canada, Israel, Algeria and 8 other countries.
Six Apart Advertising is leading in India, United Kingdom, Turkey, Thailand and 7 other countries.