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 Sports, Business & Industry, Beauty, Food & Drink and 6 other categories.
Simple AdServer is leading in Sports, Adult, Arts & Entertainment, Motorsports and 2 other categories.
Testnet is leading in most countries, including Belgium.
Testnet is leading in Belgium.