WebTracker is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
WhosOn has better usage coverage in more websites categories. Including Business & Industry, Shopping, Computer & Electronics, Internet & Telecom and 127 other categories.
WebTracker is leading in Adult, TV & Video, Video Games, Movies and 4 other categories.
WhosOn is leading in most countries, including United Kingdom, United States, Canada, Germany and 69 other countries.
WebTracker is leading in Japan, Taiwan and Myanmar.