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, Computer & Electronics and 56 other categories.
Optimatic is leading in Games, Online, Internet & Telecom, Video Games and 15 other categories.
Optimatic is leading in most countries, including Algeria, India, Peru, Israel and 21 other countries.
Six Apart Advertising is leading in United States, Russia, Australia, Netherlands and 8 other countries.