Market Share by Top Websites

1 Isotope is leading in 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 Business & Industry, Arts & Entertainment, Internet & Telecom, Marketing & Advertising and 186 other categories.

2 Sizzle is leading in Shopping, Clothing, Home & Garden, Consumer Electronics and 28 other categories.


1 Isotope is leading in most countries, including United States, United Kingdom, Russia, Germany and 171 other countries.

2 Sizzle is leading in Korea Republic, China, Japan, Czech Republic and 16 other countries.