Free Blogger Ads.txt Generator — Quick Fix for AdSense Approval
If you are trying to get Google AdSense approved for your Blogger site, a single missing
or incorrectly formatted line in an ads.txt file can be the difference between
approval and rejection. This guide explains exactly what ads.txt is, why Google requires it,
and how to generate and publish the correct code in under five minutes.
What Is Ads.txt — and Why Does Google Require It?
Ads.txt stands for Authorized Digital Sellers. It is a simple plain-text file that you publish on your website to tell advertisers and ad networks which companies are officially authorized to sell advertising space on your domain. The initiative was developed by the IAB Tech Lab to combat ad fraud — specifically the problem of unauthorized resellers claiming to sell ad inventory on websites they do not represent.
For website owners and bloggers, ads.txt serves one very practical purpose: it tells Google AdSense that you are the legitimate, authorized publisher for your domain. Without it, Google cannot verify the relationship between your AdSense account and your website, which can result in:
- AdSense application rejection during the review process
- A warning in your AdSense dashboard saying "Ads.txt file is missing"
- Reduced ad revenue because some programmatic buyers skip sites without a valid ads.txt
- Account policy violations if your site grows and is later audited
The good news is that fixing this is one of the simplest tasks in the AdSense setup process. Your entire ads.txt file for AdSense is just a single line of plain text. Use the generator below to create it instantly.
Step 1 — Find Your AdSense Publisher ID
Where to Find Your Publisher ID
- Sign in to your Google AdSense account at adsense.google.com.
- Click Account in the left sidebar, then go to Settings → Account information.
- Find and copy your Publisher ID. It always starts with
pub-followed by 16 digits, for example:pub-1234567890123456.
Your Publisher ID is unique to your AdSense account. Make sure you copy the full ID
including the pub- prefix. If you enter only the numbers, the generator
below will add the prefix automatically.
Step 2 — Generate Your Ads.txt Code
Enter your Publisher ID in the generator below to produce the exact line Google requires:
Rekreay — Free Blogger Ads.txt Generator
This tool builds the required ads.txt entry for Google AdSense. Paste the generated line into Blogger's custom ads.txt area to avoid approval delays.
Publisher ID reminder
- Open AdSense and copy
pub-XXXXXXXXXXXXXXXX. - If you paste only the numbers, the generator auto-adds the
pub-prefix.
How to Add This Code to Blogger
- Go to your Blogger Dashboard.
- Navigate to Settings → Monetization.
- Enable the toggle for "Enable custom ads.txt".
- Click on "Custom ads.txt" (the text link, not the toggle).
- Paste the generated code and click Save.
Step 3 — Validate Your Ads.txt File
After saving, verify the line looks exactly like this (with your own Publisher ID):
google.com, pub-1234567890123456, DIRECT, f08c47fec0942fa0
To confirm your file is publicly accessible, visit this URL in your browser:
https://yourdomain.com/ads.txt
You should see the single line of plain text. If you see an error page or the file appears empty, go back to Blogger Settings → Monetization and try again.
Understanding the Ads.txt Line — What Each Part Means
The generated line contains four fields. Here is what each one means:
| Field | Value | Meaning |
|---|---|---|
| Domain | google.com |
The ad system domain — Google's advertising platform |
| Publisher ID | pub-XXXXXXXXXXXXXXXX |
Your unique AdSense account identifier |
| Relationship | DIRECT |
You are directly authorized by Google — not a reseller |
| Certification ID | f08c47fec0942fa0 |
Google's official TAG-certified seller ID — never changes |
The DIRECT relationship type is correct for all AdSense publishers. The
certification ID f08c47fec0942fa0 is Google's official TAG ID and is the
same for all publishers worldwide — never modify it.
How to Add Ads.txt to Blogger (Detailed Steps)
- Log in to Blogger at blogger.com and select your blog.
- Go to Settings in the left sidebar and scroll to the Monetization section.
- Enable "Custom ads.txt" by switching the toggle on.
- Open the editor by clicking the "Custom ads.txt" text link.
- Paste your generated line. Make sure there are no extra blank lines, spaces, or HTML tags — ads.txt must be plain text only.
- Save and wait a few seconds for the change to apply.
- Verify by visiting
https://yourblog.blogspot.com/ads.txtin a new browser tab.
How to Add Ads.txt to WordPress or a Custom Website
For WordPress, install the free Ads.txt Manager plugin. Go to Settings → Ads.txt and paste your generated line. The plugin publishes the file at the correct URL automatically.
For a custom HTML website, create a plain text file named ads.txt in the
root directory of your site (same folder as index.html). Paste your line,
save, and upload via FTP. The file must be accessible at
https://yourdomain.com/ads.txt — not in a subfolder.
yourdomain.com/blog/, the file must still be at
yourdomain.com/ads.txt.
Common Ads.txt Errors and How to Fix Them
| Error | Cause | Fix |
|---|---|---|
| Ads.txt file missing | No file found at your domain root | Create using this generator and publish as described above |
| Invalid Publisher ID | Typo, wrong digits, or missing pub- prefix |
Copy the ID directly from AdSense → Account information |
| File contains HTML tags | Pasted into rich text editor instead of plain text mode | Use HTML / plain text mode — ads.txt must contain only raw text |
| File not publicly accessible | Wrong location or Blogger toggle not enabled | Visit yourdomain.com/ads.txt — if error shows, re-check Monetization settings |
| Warning persists after 72 hours | Google crawler has not yet revisited the file | Wait up to 72 hours, then confirm file is accessible and check for typos |
Does Fixing Ads.txt Guarantee AdSense Approval?
A correct ads.txt file removes one of the most common technical rejection reasons, but it is not the only factor AdSense evaluates. Google's review process also checks:
- Content quality — Posts must have substantial original written content. Thin posts with only a tool and a few sentences are a common rejection cause.
- Trust pages — Your site needs an About Us page, Privacy Policy, Contact Us page, and Disclaimer.
- Navigation and UX — Broken links, missing menus, and cluttered layouts negatively affect review outcomes.
- Site age and traffic — Very new sites with minimal organic traffic may need more time before approval.
- No policy violations — Adult content, copyrighted material, and misleading claims result in rejection regardless of ads.txt.
Think of ads.txt as a prerequisite — it does not earn you approval on its own, but a missing or broken ads.txt can block approval even if everything else is in order.
Frequently Asked Questions
What is ads.txt and why does Google require it?
Ads.txt (Authorized Digital Sellers) is a plain text file that tells ad buyers which companies are authorized to sell ads on your website. Google AdSense requires it to verify you are the legitimate publisher for your domain, to prevent ad fraud, and to qualify your site for programmatic advertising. Without it, your AdSense application may be delayed or rejected, and some ad buyers may skip your site entirely.
Will a missing ads.txt cause AdSense to reject my application?
A missing ads.txt can delay or flag your AdSense application and will result in a warning in your dashboard once approved. While it is not always the sole reason for rejection, it is a required step that should be completed before submitting. Fixing it removes one of the most common preventable rejection causes.
What is the certification ID (f08c47fec0942fa0) in the generated line?
This is Google's official TAG-certified seller ID. It is the same for all AdSense publishers worldwide and never changes. It allows programmatic ad buyers to verify that Google is a certified, legitimate seller of ad inventory. The generator includes it automatically — you never need to find or modify this value.
Can I add multiple publisher IDs in one ads.txt file?
Yes. If you use multiple ad networks, you can add one line per network. Each line follows the same format. During your initial AdSense application, include only your Google AdSense line to keep things simple and avoid confusion during the review.
How long after adding ads.txt will the AdSense warning disappear?
Google's crawlers typically pick up a new ads.txt file within 24 to 72 hours. If the warning persists after 72 hours, confirm the file is accessible at yourdomain.com/ads.txt, check for typos in the Publisher ID, and make sure the file contains only plain text with no HTML markup.
My ads.txt shows extra HTML tags — will that cause a problem?
Yes. The ads.txt file must contain only plain text. If you paste the code into a rich text editor, extra HTML formatting may be inserted which will cause the file to fail validation. Always use plain text or HTML source mode when saving your ads.txt content in Blogger.
Does ads.txt work with a custom domain on Blogger?
Yes. If you have connected a custom domain to Blogger, the ads.txt will be served at both yourdomain.com/ads.txt and yourblog.blogspot.com/ads.txt. AdSense checks the custom domain. Make sure your custom domain is fully connected and DNS has propagated before checking the file URL.
Is this ads.txt generator free to use?
Yes, completely free. No account required, no file size limit, and nothing is sent to any server. The generator runs entirely in your browser and produces the correct ready-to-use ads.txt line instantly.
Quick Troubleshooting Checklist
- Use the generator above to produce the correct ads.txt line for your Publisher ID.
- In Blogger Dashboard → Settings → Monetization, enable "Custom ads.txt" and paste exactly one line.
- Confirm the content is plain text — no HTML tags, no extra spaces, no BOM markers.
- Visit
https://yourdomain.com/ads.txtand confirm the line is visible. - Wait 24–72 hours for Google's crawler to detect the file.
- Check your AdSense account for any remaining warnings or errors.
Complete Your AdSense Approval Checklist
Ads.txt is just one piece. Make sure you also have these essential pages:
