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, Sentry 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, Shopping, Internet & Telecom and 202 other categories.

2 Sentry is leading in Dentistry, Automotive Industry, Maps, Coupons and 8 other categories.


1 Isotope is leading in most countries, including United States, United Kingdom, France, Germany and 155 other countries.

2 Sentry is leading in Japan, Algeria, Ethiopia, Iraq and 6 other countries.