Google Developers Input type: VAST tag ( Sample ) VAST XML <VAST>...</VAST> Test Ad WARNING: You're using an HTTP ad tag on an HTTPS website. This can cause your ad to fail. We recommend changing your ad tag to use HTTPS instead. If you do not have an HTTPS version of this tag, you can test using our IMA HTML5 SDK Advanced Demo hosted on GitHub. ▸ Advanced controls MIME types (optional): video/mp4 video/webm video/ogg audio/mp4