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 56 other categories.
Optimatic is leading in Games, Business & Industry, Internet & Telecom, Marketing & Advertising and 19 other categories.
Six Apart Advertising is leading in most countries, including United States, India, Canada, United Kingdom and 29 other countries.
Optimatic is leading in Israel, Venezuela, Denmark, Tuvalu and 12 other countries.