The scanner checks the same signals AdMob's crawler reads: fetch behavior, redirect chains, bot protection, file format, and your publisher line.
Free scan · No account required · Results in under 30 seconds
111 free scans completed, 97% found at least one issue
Confirms your AdMob publisher ID appears in the file with the correct ad system domain and account type.
Detects SiteGround, Cloudflare, and other challenge pages that return 200 to browsers but block automated crawlers. Free validators report this as a format error.
Traces multi-hop redirects, verifies MIME type and encoding, checks root-domain vs www placement, and validates robots.txt allow rules.
Once your file is correct, the monitor checks it daily and sends you an email the moment a regression is detected. $12/month per app, no contract.
Start with a free scan