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 45 other categories.
Bidtellect is leading in Business & Industry, Sports, Career & Education, Internet & Telecom and 29 other categories.
Bidtellect is leading in most countries, including United States, United Kingdom, India, Germany and 15 other countries.
Six Apart Advertising is leading in Japan, Portugal, Switzerland, Brazil and 4 other countries.