ClickDimensions is leading in Top 100K Sites and Top 1M Sites.
ClickDimensions has better usage coverage in more websites categories. Including Business & Industry, Computer & Electronics, Software, Internet & Telecom and 108 other categories.
Viacom Targeting is leading in Arts & Entertainment, TV & Video, Music & Audio, Movies and 15 other categories.
ClickDimensions is leading in most countries, including United States, United Kingdom, Australia, Canada and 64 other countries.
Viacom Targeting is leading in Brazil, Italy, Mexico, Argentina and 21 other countries.