Market Share by Top Websites

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

2 In terms of market share, Vocus is clearly lagging behind, losing to Integral Ad Science in all segments.

Websites Categories

1 Integral Ad Science has better usage coverage in more websites categories. Including News & Media, Arts & Entertainment, People & Society, Sports and 96 other categories.

2 Vocus is leading in Business & Industry, Health, Marketing & Advertising, Animation & Comics and 37 other categories.


1 Integral Ad Science is leading in most countries, including United States, Germany, United Kingdom, Spain and 80 other countries.

2 Vocus is leading in Cambodia, Cayman Islands, Iraq, Kazakhstan and 2 other countries.