InternetBrands is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
InternetBrands has better usage coverage in more websites categories. Including Health, Business & Industry, Shopping, Autos & Vehicles and 73 other categories.
ReferLocal is leading in Marketing & Advertising and Newspapers.
InternetBrands is leading in most countries, including United States, United Kingdom, Russia, France and 21 other countries.
ReferLocal is leading in China.