How to Fix Ads.txt Error in WordPress?

Do you want to know “How to Fix Ads.txt Error”?

Imagine you’re running a website and you want to make sure that only the right people can sell ad space on it.

You don’t want scammers to trick advertisers.

So, there’s this organization called the Interactive Advertising Bureau (IAB) that came up with a simple text file called ads.txt (Authorized Digital Sellers).

It’s like a list where website owners can say who’s allowed to sell ads on their site.

But here’s the catch: sometimes, making and managing this list can be tricky because mistakes and problems can pop up.

This article will help you understand how to fix ads.txt error.

What is ads.txt Error?

ads.txt error meaning

If you’re seeing an ads.txt error on your WordPress website, don’t worry—it’s something we can easily tackle.

Ads.txt is like a little sign on your site that helps advertisers know they’re in the right place.

When there’s an error, it means this sign is a bit wonky, but we can straighten it out.

Think of ads.txt as a VIP list for advertisers. It’s a file on your website that lists the companies allowed to advertise.

When there’s an error, it’s like telling a bouncer at a club, “Hold on, something’s not right.”

Maybe a name is misspelled or someone’s missing from the list. That’s the ads.txt error.

Checking for ads.txt Errors

ads.txt error check

First things first, let’s find the issue.

Head to your website’s backend—where you make all the changes.

Look for the ads.txt file.

It’s like a guest list for advertisers. If there’s a mistake, it’ll be there.

Open your website’s ads.txt file: Type your domain URL followed by “/ads.txt” (e.g., in your web browser.

The file should be accessible if it is correctly placed in the root directory.

Verify the file structure: Ensure that the ads.txt file follows the correct format with each line representing a single entry, and each field separated by commas.

Check for syntax errors: Validate that the file doesn’t contain any typos, missing characters, or extra spaces.

Common Causes of ads.txt Errors

ads.txt error causes

Now, let’s figure out why these errors happen in the first place.

Picture your website as a puzzle, and the ads.txt file is one crucial piece.

Sometimes, the puzzle piece doesn’t fit perfectly, and that causes the error.

Typos and Mistakes: Just like when you type a text and accidentally press the wrong key, it happens in the tech world too.

A simple typo in the ads.txt file can throw things off. Double-checking and fixing those typos is like using the right puzzle piece.

Incorrect Formatting: Imagine you’re organizing your closet, and suddenly your shirts are in the pants section.

That’s not how it should be! Similarly, if the ads.txt file isn’t formatted correctly, it confuses the system.

Making sure everything is in the right order is like putting your clothes back in the right place.

Missing Information: If your permission slip (ads.txt file) is missing some details, it’s like having a blank space on your map.

Advertisers need all the info to navigate properly. So, ensure every bit of information is there, like landmarks on a map.

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Fixing Ads.txt Error

Using ads.txt on your website to show authorized advertisers can sometimes lead to mistakes that cause problems with ads and reduce your earnings.

These mistakes could be putting things in the wrong place, using old web links, or not using the right format.

Even a tiny error in the ads.txt file can stop ads from showing correctly and make you lose money.

1. Correcting Syntax Errors

ads.txt error syntax

Syntax errors in the ads.txt file occur when the formatting is incorrect, leading to a failure in recognizing the content by ad verification systems.

These errors often result from missing or misplaced characters, incorrect delimiters, or improper spacing.

It is essential to adhere to the correct syntax to ensure the ads.txt file is properly interpreted.

Example of a syntax error in ads.txt:

# Incorrect format – missing comma pub-1234567890 DIRECT f08c47fec0942fa0

# Correct format – separated by a comma, pub-1234567890, DIRECT, f08c47fec0942fa0

2. Resolving Domain Authorization Errors

ads.txt domain auth error

Domain authorization errors occur when a publisher lists an unauthorized seller or reseller in their ads.txt file.

This can happen if a publisher mistakenly includes a third-party reseller without granting them permission to sell their ad inventory.

Example of a domain authorization error in ads.txt:

# Unauthorized seller listed, reseller-5678901234, RESELLER, abcdefghijklmnop

# Authorized seller listed, pub-9876543210, DIRECT, f08c47fec0942fa0

3. Handling Incorrectly Formatted Fields

ads.txt incorrect format error

Incorrectly formatted fields in ads.txt can lead to errors and result in ad verification systems being unable to process the information correctly.

Common formatting issues include missing or misplaced columns, incorrect account type values, and typos in the publisher or seller IDs.

Example of an incorrectly formatted field in ads.txt:

# Incorrect account type value, pub-1234567890, DIRRECT, f08c47fec0942fa0

# Correct account type value, pub-1234567890, DIRECT, f08c47fec0942fa0

4. Dealing with Missing or Incorrect Data

ads txt incorrect missing error

Missing or incorrect data in the ads.txt file can create significant issues in the ad serving process.

It is important to ensure that all the required fields are present and contain accurate information.

Publishers should regularly review their ads.txt file and cross-check the data with the details provided by their ad partners.

Example of missing data in ads.txt:

# Missing account type and certification authority ID, pub-1234567890

# Complete data with DIRECT account type and certification authority ID, pub-1234567890, DIRECT, abcdefghijklmnop

5. Validating ads.txt Changes

ads txt validate error

Before implementing any changes to the ads.txt file, it is essential to validate the modifications to avoid potential errors.

One way to do this is by using any ads.txt validator tool provided by industry organizations or third-party services.

These tools analyze the ads.txt file for syntax errors, missing fields, and unauthorized sellers, ensuring that the file is properly structured and compliant with the IAB standards.

A simple error can lead to ads not displaying correctly or, in the worst-case scenario, the site losing ad revenue due to misconfigurations.

For instance, let’s say a publisher wants to add a new authorized seller to their ads.txt file:

# Current ads.txt entry, pub-1234567890, DIRECT, f08c47fec0942fa0

# Updated ads.txt entry with new authorized seller, pub-1234567890, DIRECT, f08c47fec0942fa0, pub-9876543210, DIRECT, abcdefghijklmnop

6. Uploading the Corrected ads.txt File

ads txt update

After making necessary corrections and ensuring the ads.txt file is validated, the next step is to upload the corrected file to the website’s root directory.

The publisher should upload the ads.txt file to the root directory of their domain, accessible at

You can use FTP (File Transfer Protocol) or their website’s content management system (CMS) to access the server and replace the existing ads.txt file with the updated version.

7. Verifying Changes

ads txt verification

After updating and uploading the corrected ads.txt file, publishers should verify that the changes are successfully implemented.

Verification can be done by manually checking the file’s content or using various online tools and resources that can validate the ads.txt file against known ad networks and sellers.

Also, publishers should monitor their ad performance and revenue to ensure that the ad delivery process remains uninterrupted and that authorized sellers are correctly representing their inventory.

Wrapping Up – How to Fix Ads.txt Error

Understanding how to fix ads.txt error is important for publishers to maintain a transparent and secure advertising ecosystem.

The correct implementation of ads.txt not only helps prevent fraudulent activities and ad misrepresentations but also builds trust with advertisers and ad networks.

A clean and accurate ads.txt file streamlines the ad delivery process, leading to increased ad revenue and a positive user experience for website visitors.

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