Carbon Ads is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Carbon Ads has better usage coverage in more websites categories. Including Computer & Electronics, Internet & Telecom, Business & Industry, Arts & Entertainment and 54 other categories.
ReferLocal is leading in Tourism, Travel, Newspapers and Transportation & Logistics.
Carbon Ads is leading in most countries, including United States, Japan, China, India and 45 other countries.
ReferLocal hasn't got a lead over Carbon Ads in any country.