These are the most common errors publishers make in their ads.txt files. Buyers use crawlers that block domains because of these errors, resulting in revenue loss for publishers. Download the lists and check if your domain is included.
Share this page
This is the most common error we see publishers make and the easiest to fix. To be certain that crawlers can crawl your domain, the domain URL should be encrypted as HTTPS rather than HTTP.
2Sub vs. Top-domain
Make sure to keep your ads.txt file on the top domain rather than the 'www' subdomain. By default, crawlers use top-domain, and won't fetch subdomain ads.txt unless redirected.
3Not Plain text
Ensure that your ads.txt file appears on a plain text file and not HTML documents. Additionally, the header must state: "Content-Type: text/plain."
content-type: text/html; charset=UTF-8
content-type: text/plain; charset=UTF-8
4Blocked non-standard User-Agents
Blocked non-standard user-agents (UA) is the second most common error we see. Here, make sure that your ads.txt is available to any UA and is not getting blocked. This will ensure that any crawler can access it.
user-agent: Sellers.Guide Crawler
User-Agent: Mozilla/5.0 <platform> <extensions>
Please leave your details and we’ll get back to you soon
* By filling out this form, you agree to join Sellers.guide's mailing list, which you can unsubscribe from at any time. We will never spam you.