Market Share by Top Websites

1 Underdog Media is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.

2 In terms of market share, Ad Spirit is clearly lagging behind, losing to Underdog Media in all segments.

Websites Categories

1 Ad Spirit has better usage coverage in more websites categories. Including Business & Industry, Sports, Shopping, Soccer and 80 other categories.

2 Underdog Media is leading in Computer & Electronics, Software, Arts & Entertainment, News & Media and 36 other categories.


1 Underdog Media is leading in most countries, including United States, United Kingdom, India, Canada and 40 other countries.

2 Ad Spirit is leading in Germany, Austria, Switzerland, Russia and 14 other countries.