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State of Transparency

Seller Reports

We'll supply the data and insights, you'll connect the dots to better understand the AdTech supply chain. Learn more
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  • {{$index + 1}}{{line.sellerDomain}}
    {{line.appearances | number}}
    ++{{line.rankChange}}
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  • {{line.appearances | number}} ++{{line.rankChange}}
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"+" sign indicates that the domain increase in rank
"-" sign indicates that the domain dropped in rank
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Data includes domains with 1000+ appearances per exchange

Industry Highlights

Insights about the state of transparency from 130K websites we crawl

Ads.txt: Number of lines
Ads.txt: Number of lines
Non Existing Seats per domain
Non Existing Seats per domain
Avg. Number of Intermediaries
Avg. Number of Intermediaries
Number of Sellers per Domain
Number of Sellers per Domain
Ads.txt: Number of lines per domain
Ads.txt: Number of lines per domain

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The State of Transparency
The State of Transparency
Sellers.guide teamSellers.guide team
After analyzing tens of thousands of ads.txt files... read more
Intermediaries Listed as Direct – Seller Reports
Intermediaries Listed as Direct – Seller Reports
Livnat MorLivnat Mor
The IAB introduced ads.txt in 2017 to help publish... read more
Most Common Direct Sellers - Seller Reports
Most Common Direct Sellers - Seller Reports
Livnat MorLivnat Mor
Drawing ourselves out of the rut of day-to-day dec... read more
Resellers Listed as Publishers – Seller Reports
Resellers Listed as Publishers – Seller Reports
Livnat MorLivnat Mor
Ads.txt files and sellers.jsons are two parts of t... read more
7 Mistakes Publishers Make in Their Ads.txt That Will Cost Them
7 Mistakes Publishers Make in Their Ads.txt That Will Cost Them
Eyal BetzalelEyal Betzalel
As part of our mission to ensure industry-wide tra... read more
Common Ads.txt Implementation Errors: FAQs
Common Ads.txt Implementation Errors: FAQs
Livnat MorLivnat Mor
As part of our mission to ensure industry-wide tra... read more
The Truth About Ads.txt: The Injustice of Transparency
The Truth About Ads.txt: The Injustice of Transparency
Lior ShvoLior Shvo
To eradicate fraud, all parties must fight it equa... read more
How do we calculate the Transparency Score?
How do we calculate the Transparency Score?
By Eyal BetzalelBy Eyal Betzalel
The Transparency Score is the resulting factor of ... read more
It’s All About the Money: SPO, Transparency & Everything In Between
It’s All About the Money: SPO, Transparency & Everything In Between
Lior ShvoLior Shvo
Once upon a time, the online advertising supply ch... read more
Ads.txt: Tips, Tricks, and Best Practices
Ads.txt: Tips, Tricks, and Best Practices
Sellers.guide teamSellers.guide team
Since the introduction of ads.txt in 2017, it has ... read more
Cleaning Ads.txt Files With Sellers.guide
Cleaning Ads.txt Files With Sellers.guide
By Lior ShvoBy Lior Shvo
Are you new to Sellers.guide? You analyzed your do... read more
Primis Launches Sellers.guide – A New Initiative
Primis Launches Sellers.guide – A New Initiative
By Primis teamBy Primis team
Free Tool From UM-Owned Video Discovery Company Al... read more
Ads.txt Got Complicated, Sellers.guide Untangle the Mess
Ads.txt Got Complicated, Sellers.guide Untangle the Mess
By Sarah SluisBy Sarah Sluis
The idea behind Ads.txt was simple: publishers cre... read more
Sellers.json: What You Need to Know
Sellers.json: What You Need to Know
Sellers.guide teamSellers.guide team
Advertisers want to be confident that they are max... read more
Primis Automates Ads.txt Maintenance with Launch of Wizard
Primis Automates Ads.txt Maintenance with Launch of Wizard
Sellers.guide teamSellers.guide team
Primis, the leading Video Discovery platform for g... read more
The Misunderstood Role of Ads.txt in the Transparency Puzzle
The Misunderstood Role of Ads.txt in the Transparency Puzzle
Lior ShvoLior Shvo
When the IAB launched ads.txt in 2017, its adoptio... read more
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