InternetBrands is leading in Top 100K Sites and Top 1M Sites.
InternetBrands has better usage coverage in more websites categories. Including Health, Shopping, Business & Industry, Autos & Vehicles and 67 other categories.
ReferLocal is leading in News & Media and Newspapers.
InternetBrands is leading in most countries, including United States, United Kingdom, Canada, France and 17 other countries.
ReferLocal is leading in Australia.