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Ad Tag Tester
CPU/RAM usage, Dimensions, SSL...
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HTML5 Ad Validator
Initial Load, Click Tags, Meta ad.size...
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Video Validator
MOOV Atoms, Audio Loudness, Bit Rates...
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Banner Ad Validator
Dimensions, Aspect ratio, SFW, Creative Border...

Host-initiated Subload Detector

Scan your ad tag to check the host-initiated subload.

HTML5 Zip
Ad Tag
VAST
Video
Image
Audio
 
gallery_thumbnail
Batch Upload
auto_stories
API Docs
Go ahead, try
it yourself !

Load Size: Subload

After the ad appears, it might load more data in the background. This is called a subload.

Why do we test it?

While subloading can add more features to an ad (like animations), too much subloading can make the ad run slower. Keeping subloads light helps the ad run smoothly without affecting the user's browsing experience.

Giovanni Sollazzo
Giovanni Sollazzo
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Founder & Chairman, AIDEM Technologies
Dylan Coetzee
Dylan Coetzee
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Digital Marketing Director, OmniaMed Communications
Avast using AdValify.io to validate adsWideout using AdValify.io to validate adsGroupM using AdValify.io to validate adsAidem using AdValify.io to validate adsLeaf Group using AdValify.io to validate adsCox Media using AdValify.io to validate ads