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 55 other categories.
Optimatic is leading in Games, Internet & Telecom, Online, Marketing & Advertising and 18 other categories.
Optimatic is leading in most countries, including Algeria, Ukraine, Venezuela, Peru and 22 other countries.
Six Apart Advertising is leading in United States, United Kingdom, India, Germany and 7 other countries.