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 News & Media, Computer & Electronics, Software, Technology News and 72 other categories.

2 Optimost is leading in Finance, Business & Industry, Insurance, People & Society and 40 other categories.


1 DoubleVerify is leading in most countries, including United States, Brazil, United Kingdom, Russia and 83 other countries.

2 Optimost is leading in Qatar and Cyprus.