# Online VAST Ad System Detector | AdValify.io

[![AdValify Ad Validation Toolkit](/images/logo20.png)](/) 

*Ad Validation Software*

 

HTML5Ad TagVASTVideoCTVBannerAPISupport

    

☰

  

# VAST Ad System Detector

 

## Scan Your VAST Video to detect the ad system used.

 

Paste a VAST tag URL and check compliance, media files, wrappers and ad delivery issues in seconds.

   
 

Go ahead, just

copy/paste your tag !

  

## What will the results look like?

 

If you use the VAST tag tester above, the results will look something like this. Unlike other VAST validators, AdValify performs multiple pass/fail tests to see if the tag aligns with your (customizable) ad specification.

 

For example: max 1 wrapper, dimensions of 1920x1080 pixels, AAC audio codec required, audio loudness -24 LUFS, etc.

 

![](/images/tour/vast-validator-example2.png)

 

![](/images/tour/vast-validator-example2.png)

 

![AdValify Customer Review Dylan Coetzee](/images/testimonials/dylan_coetzee.png)![AdValify Customer Review Giovanni Sollazzo](/images/testimonials/giovanni_sollazzo.png)![AdValify Customer Review Stefan von Gartzen](/images/testimonials/stefan-von-gartzen.jpg)![](/images/star.svg)![](/images/star.svg)![](/images/star.svg)![](/images/star.svg)![](/images/star.svg)

 

AdValify is used by advertising teams around the world, including:

 

![TheTradeDesk using AdValify.io to validate ads](/images/favicons/thetradedesk.png)

![GroupM using AdValify.io to validate ads](/images/favicons/groupm.png)

![Clorox using AdValify.io to validate ads](/images/favicons/clorox.png)

![Epsilon using AdValify.io to validate ads](/images/favicons/epsilon.png)

![Hogarth using AdValify.io to validate ads](/images/favicons/hogarth.png)

 

Perform 45+ ad quality tests in 

## Which tests are performed?

 

AdValify is a comprehensive ad testing tool. It not only checks if the ad is working, but also if it complies with YOUR ad specification.

 

### Contains VPAID

 

Determines if the VAST tag contains a VPAID video.

 

### Wrapper Redirects

 

Determines if the VAST tag is wrapped in another VAST tag, and how many times.

 

### Audio Loudness

 

Loudness Units Full Scale (LUFS) is a standard measure of perceived audio loudness.

 

### Video Dimensions

 

The dimensions of a video are measured in pixels (e.g. 1920x1080 for Full HD).

 

### Video Duration

 

The duration of the video in seconds. Common ad durations are 10, 15 or 30 seconds.

 

### Video Bit Rate

 

The video bit rate defines the amount of data stored for every second of video.

... and 39+ additional ad quality tests. [See all tests](/ad-validation-tests/vast)

      

![](/images/favicon20.png) AdValify.io © 2023 - 2026

 

AdValify's VAST tag tester checks a VAST ad response and reports technical issues that can affect video ad delivery, playback or tracking. AdValify provides a dedicated VAST tag testing and validation tool. API available.

 

|  | Do you think AdValify is awesome? A very short [review on G2](https://www.g2.com/products/advalify/take_survey) would be greatly appreciated! Thanks in advance! |
| --- | --- |

 

Made with  for ad tech

 ![Underline](/images/underline.png)

Products

 [HTML5 Ads](/html5-ad-validator)  
 [Ad Tags](/ad-tag-tester)  
 [VAST Ads](/vast-tag-tester)

[Video Ads](/video-validator)  
 [CTV Ads](/ctv-ad-validator)  
 [Banner Ads](/banner-validator)

Developers API

 [Full API Docs](/api-docs)  
 [Get an API Key](/contact)  
 [GitHub PHP Class](https://github.com/AdValify/ad-validator-php)  
 [See All Tests](/ad-validation-tests)

Company

 [Contact Support](/contact)  
 [Terms of Service](/terms)  
 [Security Policy](/security)  
 [VAST Video Ad Server](https://www.adglare.com/video-ad-server-vast)