Creative subtypes (audio and video) value 1 means VAST 1.0
VAST 1.0 inline documents; the oldest entry and rare in current traffic.
When to send it
Send 1 in Video.protocols only if the player still parses VAST 1.0 inline documents. Version 1.0 is the oldest entry in the list, present since OpenRTB 2.0, and very few ad servers still produce it.
Listing it changes little for buyers, since almost none return VAST 1.0, but it costs nothing if true. Its wrapper counterpart is 4. In Bid.protocol, 1 tells the exchange that the markup is a VAST 1.0 inline document, a claim the exchange can check against the version attribute on the document's root element.
Example
{
"imp": [
{
"audio": {
"protocols": [
1
]
}
}
]
}Fields that carry it
Other values in creative subtypes (audio and video)
| Value | Name |
|---|---|
2 | VAST 2.0 |
3 | VAST 3.0 |
4 | VAST 1.0 Wrapper |
5 | VAST 2.0 Wrapper |
6 | VAST 3.0 Wrapper |
7 | VAST 4.0 |
8 | VAST 4.0 Wrapper |
9 | DAAST 1.0 |
10 | DAAST 1.0 Wrapper |
11 | VAST 4.1 |
12 | VAST 4.1 Wrapper |
13 | VAST 4.2 |
14 | VAST 4.2 Wrapper |
15 | VAST 4.3 |
16 | VAST 4.3 Wrapper |
The creative subtypes (audio and video) list page explains the whole list and its common mistakes.