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Heavy Ad Intervention Test (HAI)

Scan your ad tag to check if Chrome blocks it.

Collect 32+ data points and validate against IAB ad guidelines

Go ahead, just
copy/paste your tag !
HTML5 Zip
Ad Tag
VAST
Video
Image
Audio

Heavy Ad Intervention

This detects whether the ad will trigger Chrome's heavy ad intervention.

Why do we test it?

Ads that consume too much CPU, memory, or bandwidth may be blocked by Chrome to preserve the user experience. Avoiding heavy ads ensures compliance and prevents ads from being blocked.