Market Share by Top Websites

1 Act-On is leading in Top 100K Sites, Top 1M Sites and The Entire Web.

2 Optimost is leading in Top 10K Sites.

Websites Categories

1 Act-On has better usage coverage in more websites categories. Including Business & Industry, Computer & Electronics, Software, Marketing & Advertising and 158 other categories.

2 Optimost is leading in Car Rentals, Basketball, Gambling, Celebrities & Entertainment News and 3 other categories.


1 Act-On is leading in most countries, including United States, United Kingdom, India, Canada and 109 other countries.

2 Optimost hasn't got a lead over Act-On in any country.