InsightExpress is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
InsightExpress has better usage coverage in more websites categories. Including People & Society, Arts & Entertainment, News & Media, Business & Industry and 83 other categories.
Observer is leading in Computer & Electronics, Software, Web Design, Photography and 6 other categories.
InsightExpress is leading in most countries, including United States, China, United Kingdom, Canada and 44 other countries.
Observer is leading in Norway and Sweden.