Optimatic is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Optimatic has better usage coverage in more websites categories. Including Games, News & Media, Arts & Entertainment, Business & Industry and 35 other categories.
ReferLocal is leading in Tourism, Travel, Transportation & Logistics, Newspapers and one other category.
Optimatic is leading in most countries, including United States, Peru, India, Canada and 33 other countries.
ReferLocal hasn't got a lead over Optimatic in any country.