AdTotal is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
AdTotal has better usage coverage in more websites categories. Including Sports, Arts & Entertainment, Internet & Telecom, Soccer and 20 other categories.
ReferLocal is leading in News & Media, Travel, Tourism, Marketing & Advertising and 2 other categories.
ReferLocal is leading in most countries, including United States, Japan and United Kingdom.
AdTotal is leading in Poland.