In terms of market share, ReferLocal is clearly lagging behind, losing to Testnet in all segments.
Testnet has better usage coverage in more websites categories. Including Autos & Vehicles, Internet & Telecom, Shopping, Sports and 8 other categories.
ReferLocal is leading in Business & Industry, News & Media, Tourism, Newspapers and 6 other categories.
ReferLocal is leading in most countries, including United States, Austria and China.
Testnet is leading in Belgium and Netherlands.