AdMob app-ads.txt diagnostics

Stop guessing why
AdMob won't verify
your app.

We simulate AdMob's crawler, find exactly what's broken in your app-ads.txt setup, and tell you whether to fix something or wait.

Free scan · No account required · Results in under 10 seconds

scan — com.example.mygame

● ACTION REQUIRED2 critical findings

Crawl simulation

store_websitehttps://www.example.com/support

derived_host example.com

probe_https 404 Not Found

probe_http 404 Not Found

www_fallback 200 OK — but root must redirect

Findings

TARGET_NOT_FOUNDROOT_REDIRECT_MISSING

Fix: publish app-ads.txt at https://example.com/app-ads.txt and add a 301
from example.com → www.example.com for the /app-ads.txt path.

✓ Simulates AdMob's actual crawler✓ 15 named failure modes✓ Wait vs fix — always clearly labeled✓ 12-hour monitoring subscription

The checks AdMob doesn't explain

AdMob's crawler follows specific documented rules. We check every one.

🔍

Crawl simulation

We derive the exact hostnames AdMob will probe from your store listing and check HTTPS then HTTP in the documented order, with full redirect tracing.

🤖

robots.txt analysis

Checks Google-adstxt, Mediapartners-Google, and Googlebot rules — the user agents AdMob uses that most developers never think to check.

⚡

HTTPS purge risk

A 404 on HTTPS purges previously crawled entries even when HTTP works. We flag this before it silently kills your monetization.

📄

File validation

Line-by-line parsing: correct google.com domain, valid pub- ID format, encoding issues, duplicate lines, and missing publisher entries.

⏱

Wait vs fix

The most important distinction in this tool. We tell you clearly whether your setup is correct and you're waiting on crawl cadence, or something needs fixing.

📡

12-hour monitoring

CDN changes, CMS updates, and broken deploys silently break working setups. Monitoring catches regressions before they affect revenue.

Every finding is named and explained

Not "something went wrong." The exact code, the exact evidence, and the exact fix.

TARGET_NOT_FOUNDSTORE_WEBSITE_MISSINGSTORE_WEBSITE_INVALIDROOT_REDIRECT_MISSINGHTTPS_PARITY_RISKROBOTS_BLOCKFORMAT_INVALIDPUBLISHER_LINE_MISSINGGOOGLE_DOMAIN_WRONGSTORE_LISTING_MISMATCHTARGET_SOFT_ERRORENCODING_INVALIDCONTENT_DRIFTUNKNOWN_EDGE_CASEWAITING_PROPAGATION

Simple pricing

Scan for free. Subscribe for monitoring.

Free

Forever

✓ Unlimited on-demand scans

✓ Full diagnostic report

✓ Fix plan with copy-paste steps

✓ No account required

Start scanning

Pro

$12/mo

Per app

✓ Everything in Free

✓ 12-hour recurring scans

✓ Email alert on failure

✓ Robots regression detection

✓ Enable / disable per app

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Questions

Find out what's blocking verification.