Ad Butler is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
AdSpeed has better usage coverage in more websites categories. Including Business & Industry, Finance, People & Society, Shopping and 101 other categories.
Ad Butler is leading in Arts & Entertainment, News & Media, Sports, Career & Education and 62 other categories.
Ad Butler is leading in most countries, including United States, United Kingdom, Canada, Belarus and 58 other countries.
AdSpeed is leading in Germany, Greece, Brazil, Belgium and 19 other countries.