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, News & Media, Computer & Electronics and 46 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, Canada, Sweden, Poland and 11 other countries.
Six Apart Advertising is leading in Germany, India, Hong Kong, Italy and 5 other countries.