https://video.doubleverify.com/tester/fixtures/vast/vast3.xml
<VAST version="3.0">
<Ad id="demo">
<InLine>
<AdSystem version="1.0">Demo</AdSystem>
<AdTitle>
<![CDATA[Demo]]>
</AdTitle>
<Description>
<![CDATA[Just a demonstration.]]>
</Description>
<Error>
<![CDATA[https://example.com/error?code=[ERRORCODE]&_=[CACHEBUSTING]]]>
</Error>
<Impression>
<![CDATA[https://example.com/impression?_=[CACHEBUSTING]]]>
</Impression>
<Creatives>
<Creative>
<Linear>
<Duration>00:00:17.320</Duration>
<AdParameters>
<![CDATA[{ "buttonForegroundColor": "white", "buttonBackgroundColor": "black", "clickUrl": "https://www.doubleverify.com/" }]]>
</AdParameters>
<MediaFiles>
<MediaFile delivery="progressive" type="application/javascript" width="16" height="9" apiFramework="VPAID">
<![CDATA[https://tester.doubleverify.gent/fixtures/vpaid/vpaid-example.js]]>
</MediaFile>
<MediaFile delivery="progressive" type="video/webm" width="640" height="360">
<![CDATA[https://tester.doubleverify.gent/fixtures/video/360p30.webm]]>
</MediaFile>
<MediaFile delivery="progressive" type="video/mp4" width="640" height="360">
<![CDATA[https://tester.doubleverify.gent/fixtures/video/360p30.mp4]]>
</MediaFile>
</MediaFiles>
</Linear>
</Creative>
</Creatives>
<Extensions>
<Extension type="AdVerifications">
<AdVerifications>
<Verification vendor="iabtechlab.com-omid">
<JavaScriptResource apiFramework="omid">
<![CDATA[https://tester.doubleverify.gent/fixtures/omid/omid-validation-verification-script-v1.js]]>
</JavaScriptResource>
</Verification>
</AdVerifications>
</Extension>
</Extensions>
</InLine>
</Ad>
</VAST>