Market Share by Top Websites

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

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

Websites Categories

1 DoubleVerify has better usage coverage in more websites categories. Including Computer & Electronics, News & Media, Software, Technology News and 51 other categories.

2 Optimost is leading in Finance, People & Society, Business & Industry, Insurance and 38 other categories.


1 DoubleVerify is leading in most countries, including United States, Russia, Japan, Germany and 23 other countries.

2 Optimost is leading in United Kingdom, India, Spain, Canada and 18 other countries.