Google Ads Advertiser
1,156,203 websites

Google Ads Advertiser costs money

https://support.google.com/adwords/answer/1722054?hl=en

Google Adwords Advertisers.

VS

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...

Market Share by Top Websites

1 Google Ads Advertiser is leading in Top 1M Sites and The Entire Web.

2 Google Publisher Tag is leading in Top 10K Sites and Top 100K Sites.

Websites Categories

1 Google Publisher Tag has better usage coverage in more websites categories. Including Arts & Entertainment, Computers Electronics & Technology, Games, News & Media and 9 other categories.

2 Google Ads Advertiser is leading in Lifestyle, Vehicles, Business & Consumer Services, E-commerce & Shopping and 7 other categories.

Geography

1 Google Ads Advertiser is leading in most countries, including United States, United Kingdom, Russia, Brazil and 138 other countries.

2 Google Publisher Tag is leading in Japan, Taiwan, Indonesia, Bulgaria and 17 other countries.