In terms of market share, Simple AdServer is clearly lagging behind, losing to Testnet in all segments.
Testnet has better usage coverage in more websites categories. Including Business & Industry, Sports, Beauty, Food & Drink and 5 other categories.
Simple AdServer is leading in Motorsports, Computer & Electronics, Software, Sports and one other category.
Testnet is leading in most countries, including Belgium.
Testnet is leading in Belgium.