adWMG Checker

Chrome extension that validates ads.txt/app-ads.txt against seller ID registries

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adWMG Checker is a Chrome extension that automatically validates ads.txt and app-ads.txt files and cross-references seller IDs against sellers.json registries, flagging soft-404s and mismatches. It's for AdOps engineers who need to verify programmatic advertising supply-chain compliance without manually checking every line.

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Full match profile

Behind the summary, Matchbox keeps a richer profile of adWMG Checker - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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