Transparency and trust are everything in digital advertising. Ads.txt has obviously proven to be an important move to fight fraud and enhance the publishers-advertisers relationship. The latest update of the ads.txt standard includes two new built fields: MANAGERDOMAIN and OWNERDOMAIN. Thus, in this blog post, you will find everything you need to know about the new lines and how they can help you with boosting your advertising strategy.

Understanding Ads.txt

However, before delving deeper into MANAGERDOMAIN and OWNERDOMAIN, let’s review what ads.txt is. Stand for Authorized Digital Sellers, ads.txt is an apposite, extensible, and reputable strategy for publishers and vendors to swiftly and publicly disclose the companies they support to trade their digital ad lineup. publishers are required to install and upload an ads.txt file to their web servers that describes the accounts compliant to trade their digital ad area, to purchasers who author from certified publishers, whether or not they are approved. ads.txt stands for enhancing transparency and allowing publishers to prevent counterfeits from earning money from marketing phony commercials and disrupting the environment.

The Evolution of Ads.txt

The Origin Of Ads.txt Ceremony

Ads.txt was conceived as a defense mechanism for publishers to safeguard ad inventory and guard against unauthorized sales and misrepresentation from illegitimate sellers. Because the digital terrain is ever-changing, the ads.txt continues to evolve to become a robust and relevant tool for publishers to address the current issues effectively.


The MANAGERDOMAIN attempts to specify and prioritize the entity responsible for managing ads within a domain. Considering the multiple intervening parties doing this, this specification is crucial . On the other hand, the OWNERDOMAIN focuses on identifying the domain’s owners. It is used to verify if the seller is selling their inventory or otherwise.

Key reasons for the importance of these fields include:

Improving Transparency: These fields make it clear who is selling the ad inventory and who owns the domain, preventing the opportunity for fraud.

Boosting Operations: These fields empower publishers to run a tighter ship with respect to the inventory and personnel involved in the ad selling process. This also means that only verified parties sell ad placements.

Building Trust: Advertisers can trust the inventory they buy from the named sellers, creating better opportunities for business relationships and prices.

How to Implement These New Fields

Adding MANAGERDOMAIN and OWNERDOMAIN is easy to do . Adding these new fields requires a publisher to update their ads.txt files. How the OWNERDOMAIN must be a part of every ads.txt file and be the same as the seller field in the sellers.json file . Even if MANAGERDOMAIN is optional, it is still better to get it if possible for better clarity.


The digital advertising landscape is complicated, though tools such as the ads.txt file and the MANAGERDOMAIN and OWNERDOMAIN fields are making it simpler and safer. As a publisher, it’s more than a question of defending oneself to take a stand against any of these modifications. It’s about actively protecting oneself against ad fraud while also developing a more transparent digital advertising industry.

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