VAST CORS Header Detector

Scan your VAST Video to check the CORS header.

The best part? You can define your own pass/fail rules.


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


VAST tag tester and validator

Test your VAST tag in seconds

This VAST validator performs more than 25+ tests in a couple of seconds — much faster than you could ever have done manually.

Inspect VAST URLs and get a detailed quality assurance report. LUFS, bit rates, codecs, MOOV atoms and more.

VAST tag tester and validator

Customizable Ad Specifications

Create customized ad specifications for each placement or ad type. Let ad quality scans pass/fail accordingly.

For example, when a creative is > 300KB or the load time is >1 second. Create different ad specs if you have multiple media channels.

Ad validation custom ad specification
Advalidation REST API Automation

Scan ads via the API

Leverage automation and scan millions of ads using the API. Get a detailed QA report in JSON format for your ad ops team.

Flag creatives that don't comply with your ad specs in your own system. Let Ad Ops double-check on failed scans only.

Advalidation REST API Automation




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Free VAST Tag Validators

Need to test anything else? Try it yourself!