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ads.txt and Publisher Authentication

How to Correct the Google AdSense ads.txt File?

ads.txt announces authorized accounts and networks to sell your ad inventory at the domain root. The correct publisher ID line must be used for AdSense, and the file must return 200 as plain text at `https://domain.com/ads.txt`. The `pub-` format is used, not `ca-pub-`.

ads.txtpub IDDIRECTNot foundUnauthorized
AdSense Diagnostics
Earnings at risk - You need to fix some ads.txt file issues
ads.txt status: Not found
ads.txt status: Unauthorized
Crawler couldn't access ads.txt
google.com, pub-0000000000000000, DIRECT, f08c47fec0942fa0
01Verify correct account, site and publisher ID
02Review code, access, content and policy status
03Separate traffic, advertising and payment signals
04Follow the results from the panel and official reports
01
Secure AdSense approach

ads.txt Not Found or Unauthorized How to analyze?

ads.txt announces authorized accounts and networks to sell your ad inventory at the domain root. The correct publisher ID line must be used for AdSense, and the file must return 200 as plain text at `https://domain.com/ads.txt`. The `pub-` format is used, not `ca-pub-`.

01

Save panel message

Record the error text, date, site, publisher ID and payment account with a screenshot.

02

Test technical condition

Check code, crawler access, ads.txt, CSP, ad space and HTTP responses.

03

Separate policy and traffic

Don't treat a content/policy issue and an invalid traffic or payment issue as the same solution.

04

Apply permanent fix

Instead of repeated applications, eliminate the root cause and establish a monitoring and protection system.

Do not copy a random publisher ID from the internet.

02
Live error and status dictionary

AdSense panel messages

01kritik

ads.txt not found

Meaning: Google cannot find the file at the domain root.

Possible cause: Incorrect document root or 404.

02kritik

Unauthorized

Meaning: The file does not contain the correct publisher line.

Possible cause: Incorrect pub ID or DIRECT/RESELLER registration.

03warning

Crawler couldn't access

Meaning: The file returns 403, redirect loop, or HTML challenge.

Possible cause: WAF/CDN/SSL sorunu.

04warning

HTML returned

Meaning: A theme or 404 HTML is coming instead of ads.txt.

Possible cause: The Rewrite rule is catching the file.

05warning

Wrong publisher ID

Meaning: A pub number belonging to another account has been used.

Possible cause: Copy-paste error.

06warning

ca-pub used

Meaning: AdSense script ID is incorrectly written in ads.txt format.

Possible cause: Format confusion.

07warning

www/subdomain mismatch

Meaning: File is being accessed on a different host.

Possible cause: Canonical host or subdomain structure.

08bilgi

Update pending

Meaning: File is correct but panel has not rescanned yet.

Possible cause: Tarama gecikmesi.

No records matching this expression were found.

03
Copiable controls

curl, log, ads.txt and code tests

HTTP and MIME

curl -sSI https://example.com/ads.txt | grep -iE '^HTTP|content-type|content-length|location:'

Displays ads.txt response headers

Content

curl -sS https://example.com/ads.txt | sed -n '1,80p'

Displays the file's first lines.

AdSense line

curl -sS https://example.com/ads.txt | grep -E '^google\.com, pub-[0-9]+, (DIRECT|RESELLER), f08c47fec0942fa0$'

Verifies the standard Google row.

HTML check

curl -sS https://example.com/ads.txt | grep -iE '<html|<!doctype' && echo 'HTML is being returned' || echo 'Plain text'

Incorrect HTML response detected.

www/non-www

for u in https://example.com/ads.txt https://www.example.com/ads.txt; do curl -sS -o /dev/null -w "$u %{http_code} %{url_effective}\n" -L "$u"; done

Compares two host variations.

BOM check

curl -sS https://example.com/ads.txt | xxd -l 16

Show UTF-8 BOM and first bytes at the beginning of the file.

04
Correct and risky application

AdSense scenario comparisons

Select the correct line.

Wrong / Risky
google.com, ca-pub-123, DIRECT, f08c47fec0942fa0
Right Approach
google.com, pub-123, DIRECT, f08c47fec0942fa0

Incorrect location.

Wrong / Risky
https://example.com/public/ads.txt
Right Approach
https://example.com/ads.txt

HTML route

Wrong / Risky
The ads.txt request should fall on the index.php theme page
Right Approach
Serve the ads.txt file directly with a MIME type of text/plain and a status code of 200.

Multiple networks

Wrong / Risky
Clear all rows and leave only AdSense.
Right Approach
Preserve the valid lines of your authorized ad networks.
06
Platform and infrastructure

WordPress, custom PHP, WISECP and payment profile

cPanel

File is mostly added to public_html or domain document root.

  • Verify the real domain root.
  • Use lowercase for file name.
  • Test 200 from URL.

Plesk / WISECP

The document root can be httpdocs or a custom public folder depending on the project structure.

  • Test that the Rewrite rule is not catching the file.
  • Use the Text/plain content type.
  • Check the canonical host.

WordPress

Physical ads.txt or trusted plugin can be used.

  • Do not create conflicts with two different plugins.
  • Cache/CDN temizleyin.
  • Verify multisite and subdomain structure.
Policy and security risk

Absolutely don't

  • Do not copy a random publisher ID from the internet.
  • Do not place the ads.txt file in the admin or application subdirectory.
  • Do not delete all ad network rows without knowing what they do.
  • Do not continuously change and force scanning by editing the same file repeatedly in the panel if the warning does not disappear.
Post-procedure check

Verify the solution

  • ads.txt returns 200 and plain text at the canonical domain root.
  • Verify the correct pub ID and Google certificate ID is present.
  • www/non-www and CDN redirections work smoothly.
  • AdSense panel re-scanned for updates.
07
Internal SEO content set

Related AdSense guides

08
primary sources

Google's official AdSense documentation

09
Frequently asked questions

ads.txt Not Found or Unauthorized Curiosities about

Can ads.txt Not Found or Unauthorized issue be resolved definitively?

No. Technical and policy issues can be resolved, but approval, ad presentation, payment, or account decisions are the responsibility of Google.

Are AdSense and Google Ads the same system?

No. Google Ads is for advertisers; AdSense is for publishers to display ads on their sites and earn revenue.

Should I share my password for AdSense support?

No. Google account password, 2FA code, PIN, and bank/finance documents should not be shared with third parties.

Does continuously repeating the same process speed it up?

Generally no. The issue is not resolved, and repeated applications, investigations, or API operations are not beneficial.

Are the processes different for WordPress and custom PHP?

The panel and policy are the same; however, the template, cache, CSP, and document root application differ.

Can a new account be opened if the account is closed?

Publishers closed due to invalid traffic or policy should not try to circumvent the decision by opening a new account.

What can professional support provide?

Site auditing, code implementation, traffic/log analysis, policy correction, and official application preparation may be provided; result guarantee cannot be given.

EKA SOFTWARE AND INFORMATION SYSTEMS

Let's examine the AdSense issue with code, traffic and policy data

We technically audit site approval, ads.txt, ad failure, invalid traffic, objection, PIN, payment and tax processes. We do not guarantee final approval, account opening or earnings.

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