Google Publisher Tag
545,414 websites

Google Publisher Tag is free to use

https://support.google.com/dfp_premium/topic/28788?hl=en&ref_topic=28149

Google Publisher Tag (GPT) is an ad tagging library with which you can dynamically build ad requests. GPT takes key details from you such as ad unit name, ad size, and custom targeting, builds the request, and displays the ad on web pages o...

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gumgum
745,908 websites

gumgum is free to use

http://www.gumgum.com

GumGum is the world's largest in-image ad platform and a Quantcast Top 10 Property, reaching 150 million unique visitors and serving billions of in-image ads per month. GumGum was founded in 2007 when a team of seasoned Internet entrepre...

Market Share by Top Websites

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

2 In terms of market share, Google Publisher Tag is clearly lagging behind, losing to gumgum in all segments.

Websites Categories

1 gumgum has better usage coverage in more websites categories. Including Arts & Entertainment, Games, News & Media, Science & Education and 11 other categories.

2 Google Publisher Tag is leading in Computers Electronics & Technology, Food & Drink, Sports, Vehicles and 5 other categories.

Geography

1 gumgum is leading in most countries, including United States, Russia, Taiwan, France and 112 other countries.

2 Google Publisher Tag is leading in Japan, South Korea, Hungary, Indonesia and 40 other countries.