InsightExpress is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
InsightExpress has better usage coverage in more websites categories. Including Arts & Entertainment, Business & Industry, News & Media, People & Society and 62 other categories.
Observer is leading in Computer & Electronics, Software, Running, Visual Arts & Design and 2 other categories.
InsightExpress is leading in most countries, including United States, Australia, China, United Kingdom and 35 other countries.
Observer is leading in Lithuania.