InsightExpress is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Yahoo Search Marketing Analytics has better usage coverage in more websites categories. Including Business & Industry, Shopping, Internet & Telecom, Health and 64 other categories.
InsightExpress is leading in People & Society, Arts & Entertainment, News & Media, Fashion & Modeling and 51 other categories.
InsightExpress is leading in most countries, including United States, China, United Kingdom, Canada and 31 other countries.
Yahoo Search Marketing Analytics is leading in Japan, Taiwan, Korea Republic, India and 14 other countries.