Websites using Google Ad Manager (GPT)
Google Ad Manager, formerly DoubleClick for Publishers, is Google's ad server for publishers, tagged with the Google Publisher Tag. About 32,698 websites in the PageSourceSearch index contain the code that reveals it; the 50 highest-ranked are listed below.
How is Google Ad Manager (GPT) detected?
Publishers load the Google Publisher Tag library as gpt.js from securepubads.g.doubleclick.net/tag/js/ (formerly www.googletagservices.com/tag/js/). The discovery keyword is the exact bytes PageSourceSearch looks for in every stored page and script:
/tag/js/gpt.js Search the index for it
A literal is matched byte for byte, case-sensitively. Combine it with another keyword, a domain, a kind or a date filter on the search page to narrow the list. About Google Ad Manager (GPT)
Top 50 websites using Google Ad Manager (GPT)
Ranked by the domain's position in the crawl's ranked list (Common Crawl harmonic centrality), highest first. view source opens the stored page or script with the match highlighted. Computed 2026-09-30 16:06:47 UTC.
How it appears in the source
From theguardian.com (html):
e,"emailSignupRecaptcha":true,"shouldLoadGoogletag":true,"inizio":true},"serverSideABTests":{"fronts-and-curation-editorial-test":"b"},"googletagUrl":"//securepubads.g.doubleclick.net/tag/js/gpt.js","
Questions about finding Google Ad Manager (GPT)
- How does PageSourceSearch know a website uses Google Ad Manager (GPT)?
- By the source itself: Publishers load the Google Publisher Tag library as gpt.js from securepubads.g.doubleclick.net/tag/js/ (formerly www.googletagservices.com/tag/js/). PageSourceSearch stores the raw HTML and first-party JavaScript of each crawled site and matches the keyword byte for byte, so every listed site's stored source contains it.
- Is this a complete list of websites using Google Ad Manager (GPT)?
- No. The page lists the 50 highest-ranked sites in the index whose source holds the keyword, out of about 32,698 websites that do; the count is the index's estimate at the time the list was computed. Run the keyword as a search to page through all of them, or add a kind or date filter.
- How do I find websites that use Google Ad Manager (GPT) together with another technology?
- Search for both keywords at once: several terms separated by spaces must all be found on the same site, or with the Same page toggle in the same page. For example /tag/js/gpt.js with wp-content/plugins/ lists the WordPress sites that use Google Ad Manager (GPT).