MetriWeb is leading in Top 100K Sites and Top 1M Sites.
WordStream has better usage coverage in more websites categories. Including Business & Industry, People & Society, Relationships & Dating, Autos & Vehicles and 52 other categories.
MetriWeb is leading in Arts & Entertainment, Career & Education, Jobs & Employment, Food & Drink and 13 other categories.
WordStream is leading in most countries, including United States, United Kingdom, Mexico, India and 11 other countries.
MetriWeb is leading in Belgium, Luxembourg, France, Netherlands and 4 other countries.