AdTotal is leading in Top 1M Sites.
AdTotal has better usage coverage in more websites categories. Including Business & Industry, Sports, Arts & Entertainment, Soccer and 26 other categories.
ReferLocal is leading in News & Media, Tourism, Travel, Newspapers and one other category.
AdTotal is leading in most countries, including Poland, Viet Nam, Algeria, Belarus and 4 other countries.
ReferLocal is leading in United States, Bolivia and Australia.