Production-style React example

React VAST validator page

This isolated preview borrows the same editor, issue rail, and asset preview rhythm as the real vastlint validator. The example-only layer on top is the sample loader and auto-fix preview, which makes it easier to hand to DSP, SSP, ad-server, and QA teams.

Paste XML or a VAST URLDrop a .xml fileAuto-validates as you typeNothing stored

Validator workbench

Same split-screen flow as the real validator: XML editor on the left, issue summary on the right.

<?xml version="1.0" encoding="UTF-8"?>
<VAST version="4.2">
  <Ad id="1">
    <InLine>
      <AdSystem>Acme</AdSystem>
      <AdTitle>Bad Values Ad</AdTitle>
      <AdServingId>SERVING-001</AdServingId>
      <Impression>
        <![CDATA[https://track.example.com/impression]]>
      </Impression>
      <Creatives>
        <Creative>
          <UniversalAdId idRegistry="ad-id.org">TEST-001</UniversalAdId>
          <Linear>
            <Duration>90 seconds</Duration>
            <MediaFiles>
              <MediaFile delivery="download" type="video/mp4" width="1280" height="720">
                <![CDATA[https://cdn.example.com/video.mp4]]>
              </MediaFile>
            </MediaFiles>
          </Linear>
        </Creative>
      </Creatives>
    </InLine>
  </Ad>
</VAST>

Drop a .xml file or URL · paste XML or a URL · auto-validates · ⌘↵ to validate now

<?xml version="1.0" encoding="UTF-8"?>
<VAST version="4.2">
  <Ad id="1">
    <InLine>
      <AdSystem>Acme</AdSystem>
      <AdTitle>Bad Values Ad</AdTitle>
      <AdServingId>SERVING-001</AdServingId>
      <Impression>
        <![CDATA[https://track.example.com/impression]]>
      </Impression>
      <Creatives>
        <Creative>
          <UniversalAdId idRegistry="ad-id.org">TEST-001</UniversalAdId>
          <Linear>
            <Duration>90 seconds</Duration>
            <MediaFiles>
              <MediaFile delivery="download" type="video/mp4" width="1280" height="720">
                <![CDATA[https://cdn.example.com/video.mp4]]>
              </MediaFile>
            </MediaFiles>
          </Linear>
        </Creative>
      </Creatives>
    </InLine>
  </Ad>
</VAST>

Drop a .xml file or URL · paste XML or a URL · auto-validates · ⌘↵ to validate now

118

rules

VAST versions

<1ms

validation

data stored