Free app-ads.txt checker

A missing or broken app-ads.txt file quietly filters out real bids from ad exchanges before they ever reach your mediation waterfall. Enter the website listed on your app's store page and we'll check it for the mistakes that actually cost fill rate.

• · No signup, no login, no API keys. Just a domain.
• · We fetch the public file the same way an ad exchange's crawler would.
• · Limited to 5 checks per hour per connection, just to keep this from being abused.