# VAST

##### Summary

This glossary contains definitions of technical and marketing terms referenced across DAO.AD documentation.

##### Definition

<span style="color: rgb(86, 86, 106); white-space: pre-wrap;">VAST </span><span style="white-space: pre-wrap;">(Video Ad Serving Template) is an industry-standard protocol developed by the </span>****Interactive Advertising Bureau (IAB)****<span style="white-space: pre-wrap;"> for delivering video advertisements between ad servers and video players. It defines a standardized XML response that contains media files, tracking events, click-through URLs, and playback instructions.</span>