See who runs a website's ads, and who else they run.

pubsleuth reads the public ad code, ads.txt files and affiliate links of millions of websites, and ties each one to the publisher IDs, ad networks, affiliate programs and owners behind it.

Today that is 718,000 sites running AdSense, 41,300 sites verified on 172 ad networks, and 87,200 sites earning from 91 affiliate programs.

# example.com/ads.txt
google.com, pub-4829175530266104, DIRECT, f08c47fec0942fa0
mediavine.com, 12345, DIRECT
managerdomain=mediavine.com
  • Sites carrying this publisher ID14
  • Ad networks namedMediavine
  • Owner cluster3 sites
An illustrative ads.txt file. pubsleuth reads the marked values and links every site that shares them.

Three ways into the same question

Who is making money from this kind of site, how, and with what else?

<script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?
  client=ca-pub-4829175530266104" crossorigin="anonymous"></script>
The client ID in a page's ad code names the AdSense account that earns from it.

AdSense reverse lookup

  • Which other sites share this publisher ID?
  • Which AdSense sites in a niche get real traffic, and from which countries?
  • Which tools and calculator sites are exact-match domains?

Niche and market cluster for every site, estimated monthly visits and an estimated revenue range.

ezoic.ai, a1b2c3d4, DIRECT
managerdomain=ezoic.ai
A DIRECT line on the network's own domain, or a managerdomain record, puts a site on that network.

Network Scout

  • Which tool and calculator sites run Ezoic, Mediavine or Raptive?
  • Who joined or left a network this month?
  • Which keywords do download and converter sites target?

172 networks, each site checked against sellers.json, ads.txt and its own page code.

https://www.amazon.com/dp/B00006JSUA?tag=examplesite-20
The tag in an affiliate link names the account that earns the commission.

Affiliate Scout

  • Which independent sites earn from Amazon, Awin or ShareASale in my niche?
  • Which other sites carry the same Amazon tag?
  • Which products and merchants do they promote?

91 affiliate programs, proven from links, resolved short links and scripts.

Built from public evidence, labelled as estimates

Every finding comes from something a site publishes itself: its ads.txt file, the code on its pages, the links it shows its readers. We read those files politely and keep the evidence, so you can see why a site is listed.

Traffic and revenue are our own estimates from public popularity data, shown as ranges with how they were made. They rank sites well; they are not anyone's real earnings. The method page explains each figure, and site owners can ask for their site to be removed.

Get early access

Accounts open soon. Plans start at $19 a month per service, or $39 for all three: see pricing.