Video Ad Serving Template

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VAST (Video Ad Serving Template) is a specification defined and released by the Interactive Advertising Bureau (IAB) that sets a standard for communication requirements between ad servers and video players in order to present video ads.

Contents

It is a data structure declared using XML.

VAST has 8 versions: 1.0 (deprecated), 1.1 (deprecated), [1] 2.0, 2.0.1(The schema version as the official VAST 2.0 schema), [2] 2.6, 3.0, [3] 4.0, [4] 4.1 and 4.2.

Request

In order to play a video ad in a video player, the video player sends a request to a VAST ad server.

It is a simple HTTP based URL that typically appears as follows: http://www.example.com/?LR_PUBLISHER_ID=1331&LR_CAMPAIGN_ID=229&LR_SCHEMA=vast2-vpaid

Response

The ad server responds with a VAST data structure that declares these parameters:[ citation needed ]

For example, the above request returns the following response (trimmed):

<?xml version="1.0" encoding="utf-8"?><VASTversion="2.0"><Adid="229"><InLine><AdSystemversion="4.9.0-10">LiveRail</AdSystem><AdTitle><![CDATA[LiveRail creative 1]]></AdTitle><Description><![CDATA[]]></Description><Impressionid="LR"><![CDATA[http://t4.liverail.com/?metric=impression&cofl=0&pos=0&coid=135&pid=1331&nid=1331&oid=229&olid=2291331&cid=331&tpcid=&vid=&amid=&cc=default&pp=&vv=&tt=&sg=&tsg=&pmu=0&pau=0&psz=0&ctx=&tctx=&coty=0&adt=0&scen=&url=http%3A%2F%2Fwww.longtailvideo.com%2Fsupport%2Fopen-video-ads%2F23120%2Fwhat-is-vast%2F&cb=1259.192.118.68.5.0.690&ver=1&w=&wy=&x=121&y=121&xy=0b79&z2=0]]></Impression>    ....... <Creatives><Creativesequence="1"id="331"><Linear><Duration>00:00:09</Duration><TrackingEvents><Trackingevent="firstQuartile"><![CDATA[http://t4.liverail.com/?metric=view25&pos=0&coid=135&pid=1331&nid=1331&oid=229&olid=2291331&cid=331&tpcid=&vid=&amid=&cc=default&pp=&vv=&tt=&sg=&tsg=&pmu=0&pau=0&psz=0&ctx=&tctx=&coty=0&adt=0&scen=&url=http%3A%2F%2Fwww.longtailvideo.com%2Fsupport%2Fopen-video-ads%2F23120%2Fwhat-is-vast%2F&cb=1259.192.118.68.5.0.690&ver=1&w=&wy=&x=&y=&xy=]]></Tracking><Trackingevent="midpoint"><![CDATA[http://t4.liverail.com/?metric=view50&pos=0&coid=135&pid=1331&nid=1331&oid=229&olid=2291331&cid=331&tpcid=&vid=&amid=&cc=default&pp=&vv=&tt=&sg=&tsg=&pmu=0&pau=0&psz=0&ctx=&tctx=&coty=0&adt=0&scen=&url=http%3A%2F%2Fwww.longtailvideo.com%2Fsupport%2Fopen-video-ads%2F23120%2Fwhat-is-vast%2F&cb=1259.192.118.68.5.0.690&ver=1&w=&wy=&x=&y=&xy=]]></Tracking>                            ....... </TrackingEvents><VideoClicks><ClickThrough><![CDATA[http://t4.liverail.com/?metric=clickthru&pos=0&coid=135&pid=1331&nid=1331&oid=229&olid=2291331&cid=331&tpcid=&vid=&amid=&cc=default&pp=&vv=&tt=&sg=&tsg=&pmu=0&pau=0&psz=0&ctx=&tctx=&coty=0&adt=0&scen=&url=http%3A%2F%2Fwww.longtailvideo.com%2Fsupport%2Fopen-video-ads%2F23120%2Fwhat-is-vast%2F&cb=1259.192.118.68.5.0.690&ver=1&w=&wy=&x=&y=&xy=&redirect=http%3A%2F%2Fliverail.com%2F]]></ClickThrough></VideoClicks><MediaFiles><MediaFiledelivery="progressive"bitrate="256"width="480"height="352"type="video/x-flv"><![CDATA[http://cdn.liverail.com/adasset4/1331/229/331/lo.flv]]></MediaFile>                ...... </MediaFiles>            ...... </Linear></Creative></Creatives></InLine></Ad></VAST>

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References

  1. Grenager, Teg (2012-07-19). "Video Ad Serving Template (VAST) Version 3.0" (PDF). Interactive Advertising Bureau: 8. Retrieved 2015-05-14.
  2. "Digital Video Ad Serving Template (VAST) 2.0". IAB - Empowering the Marketing and Media Industries to Thrive in the Digital Economy. Retrieved 2017-06-01.
  3. "Digital Video Ad Serving Template (VAST)".
  4. "Digital Video Ad Serving Template (VAST)".

See also