person
Log In

Cookies Dropped Detector

Upload your HTML5 Ad to detect all cookies dropped.

Check 39+ ad quality tests for ad performance and validate against IAB HTML5 ad guidelines

Go ahead, just
drop your ad !
HTML5 Zip
Ad Tag
VAST
Video
Banner
smart_display settings_system_daydream panorama
Drop your HTML5 creatives here
ZIP Archive

Cookies Dropped

This checks if the ad tag drops any cookies, particularly third-party cookies.

Why do we test it?

Many browsers and platforms now limit or block third-party cookies for privacy reasons. Ads that drop too many cookies, or non-compliant cookies, may face restrictions or reduced performance.