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Banner Ad Mime-Type Detector

Upload your banner ad to check the image mime-type.

Collect 13+ data points and validate against IAB ad guidelines

HTML5 Zip
Ad Tag
VAST
Video
Image
Audio
 
smart_display settings_system_daydream panorama
Drop your image file here
Format: PNG, JPG, GIF
auto_stories
API Docs
Go ahead, try
it yourself !

Image Mime-Type

The MIME type indicates the nature and format of the image, such as image/png or image/jpeg.

Why do we test it?

Proper MIME type validation ensures that the ad file is correctly identified and can be processed by browsers and ad servers. Mismatches between the file type and its actual content may result in the ad not being displayed at all or being flagged for security concerns.