Market Share by Top Websites

1 Isotope is leading in Top 10K Sites, Top 100K Sites, Top 1M Sites and The Entire Web.

2 In terms of market share, Sizzle is clearly lagging behind, losing to Isotope in all segments.

Websites Categories

1 Isotope has better usage coverage in more websites categories. Including Computers Electronics & Technology, Science & Education, Health, Arts & Entertainment and 15 other categories.

2 Sizzle is leading in E-commerce & Shopping, Games, Gambling, Jobs & Career and one other category.


1 Isotope is leading in most countries, including United States, Italy, Germany, India and 160 other countries.

2 Sizzle is leading in South Korea and China.