InternetBrands is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
InternetBrands has better usage coverage in more websites categories. Including Law & Government, Law, Business & Industry, Health and 70 other categories.
ReferLocal is leading in News & Media and Newspapers.
InternetBrands is leading in most countries, including United States, United Kingdom, Canada, Spain and 22 other countries.
ReferLocal is leading in Austria.