C3 Metrics is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
C3 Metrics has better usage coverage in more websites categories. Including Health, Arts & Entertainment, Business & Industry, Travel and 83 other categories.
ReferLocal hasn't got a lead over C3 Metrics in any websites category.
C3 Metrics is leading in most countries, including United States, Russia, Norway, France and 50 other countries.
ReferLocal hasn't got a lead over C3 Metrics in any country.