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, Observer 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 84 other categories.

2 Observer is leading in Marketing & Advertising, Photography, Programming, Mobile Developers and 4 other categories.


1 DoubleVerify is leading in most countries, including United States, United Kingdom, India, Spain and 50 other countries.

2 Observer is leading in Portugal.