Bidtellect 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, Computer & Electronics, Humor and 44 other categories.
Bidtellect is leading in Business & Industry, Internet & Telecom, Career & Education, Adult and 28 other categories.
Bidtellect is leading in most countries, including United States, India, Poland, Japan and 18 other countries.
Six Apart Advertising is leading in United Kingdom, France, Netherlands, Russia and 7 other countries.