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How to implement ads.txt

What is ads.txt?

Ads.txt (Authorized Digital Sellers) is an IAB initiative, created to increase transparency in the programmatic advertising ecosystem. Ads.txt is a simple, flexible and secure method for publishers and distributors to show who is authorized to sell their ad inventory.

How do I implement the ads.txt file on my site?

We will provide you with our most up-to-date ads.txt file as a part of your set up. You simply need to upload it to your web server so that it is visible at [Your_URL]/ads.txt. The ads.txt file must be implemented before we send your site over to our SSP partners for approval. If ads.txt is not present, some partners will not accept your site, limiting your access to valuable programmatic demand.

Venatus hosted ads.txt

Ads.txt files need to be kept up to date, to prevent you from having to manually update the file every time we bring on a new programmatic partner, we created a simple solution. We are able to redirect to a hosted Venatus ads.txt file, allowing us to manage a master ads.txt file without asking you to ever make any further changes.

If you’d like to use this solution, the first step is that you must use our hard-coded ad tags. Next, you will need to create a 301 redirect on your site.

These redirects need to be created as separate and independent rules in accordance with the IAB specifications that dictate a single redirect only when hosting a remote file of this nature. 

Below is the mapping required to achieve this.

http://[your_URL]/ads.txt - > https://adstxt.venatusmedia.com/{Venatus Site ID}_ads.txt 

http://www.[your_URL]/ads.txt - > https://adstxt.venatusmedia.com/{Venatus Site ID}_ads.txt 

https://[your_URL]/ads.txt - > https://adstxt.venatusmedia.com/{Venatus Site ID}_ads.txt 

https://www.[your_URL]/ads.txt - > https://adstxt.venatusmedia.com/{Venatus Site ID}_ads.txt 

To pull the relevant ID for your site simply login to the Venatus marketplace UI and navigate to the sites tab. The ID can be lifted from the ads.txt Entry field and used to construct the redirect.

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We are aware that some publishers handle ads.txt differently and compile a dynamic list using a supplied endpoint. This will function in the same manner as above and should only require an update to the endpoint URL in the same way to facilitate the required change for Venatus. You will however still need to accommodate any external entries for other partners in your file.

Once the steps above have been completed, contact the team and we will check the implementation is responding as expected.