# VAST Video Tag

Your video packaged as a VAST 4.2 tag for video slots in any DSP, SSP, or CTV platform, with viewability verification included.

A VAST tag is a Genuin player delivered in the IAB video ad format that buyers' platforms already run. It carries the group, experience, and brand kit you choose, plus the tracking macros your buyer uses. The viewer sees your brand's video in someone else's placement, and the engagement comes back to your network.

[Octo](https://begenuin.com/developers/get-started/any-business/octo-operates-your-brand-control-center-octo-proposes-you-approve), Genuin's Supervised Intelligence interface in Brand Control Center (BCC), proposes this capability when it finds a fit on your sites and apps. It completes the steps under Set it up from your brand context. Nothing goes live until you approve it. It's part of [Offsite](https://begenuin.com/developers/browse-by-products/offsite/offsite-what-it-does-and-where-to-start), and [Offsite: generate IAB-standard tags for your media plan](https://begenuin.com/developers/get-started/any-business/offsite-generate-iab-standard-tags-for-your-media-plan) explains how every offsite tag is built and trafficked.

## When to use it

Use it wherever the slot is a video slot. For banner inventory, use the [JavaScript Display Tag](https://begenuin.com/developers/browse-by-products/offsite/javascript-display-tag) instead. You can generate both formats from the same content.

| Media plan | Where the tag runs |
| --- | --- |
| Video media plan | Video slots bought through a DSP or SSP |
| CTV | Connected TV platforms that run VAST |
| Partner publisher | The partner's own video player, through its trafficking sheet |

## How it works

- The tag uses VAST 4.2 and includes AdVerifications, which carry the viewability verification.
- The content comes from a group, a Quest's winners, a Paid Partner Post, or a [dynamic feed](https://begenuin.com/developers/browse-by-products/offsite/dynamic-feed-tag) that [Maya](https://begenuin.com/developers/browse-by-products/supervised-intelligence/supervised-intelligence-what-it-does-and-where-to-start#maya-genuin-s-orchestrator) fills by context.
- The tag comes in 9:16 for vertical video and 16:9 for horizontal slots. Studio's [Adaptation](https://begenuin.com/developers/browse-by-products/studio/adaptation) re-cuts a published video for another placement size.
- Macros pass the buyer's click and impression trackers and the destination's consent state. [Macro and Consent Passthrough](https://begenuin.com/developers/browse-by-products/offsite/macro-and-consent-passthrough) covers how consent changes what the tag renders.
- When an offsite viewer later lands on your property, [unified identity](https://begenuin.com/developers/get-started/any-business/unified-identity-auto-login-sso-and-the-id-graph) links the two visits under your privacy settings. Attribution then credits the tag.
- Offsite tag views and clicks also feed your [audience segments](https://begenuin.com/developers/get-started/any-business/audience-segments-onsite-offsite-and-offline-signals) as offsite signals.

## Set it up

Octo proposes the tag with these steps already done. You review the result and confirm it.

1. Create a tag under **Offsite** > **Tags**, and choose the content source and the VAST format. Learn how in [Offsite: generate IAB-standard tags for your media plan](https://begenuin.com/developers/get-started/any-business/offsite-generate-iab-standard-tags-for-your-media-plan).
2. Add the buyer's macros for click, impression, and consent. The [Ad tag reference: VAST, IAB sizes, and macros](https://begenuin.com/developers/get-started/any-business/ad-tag-reference-vast-iab-sizes-and-macros) lists every macro.
3. Paste the tag into the DSP or the trafficking sheet, or hand it to your agency.

## Settings

| Setting | Value |
| --- | --- |
| Format | VAST 4.2 with AdVerifications |
| Sizes | 9:16 and 16:9 |
| Content source | A group, a Quest's winners, a Paid Partner Post, or a dynamic feed |
| Macros | Click, impression, and consent, as listed in the [ad tag reference](https://begenuin.com/developers/get-started/any-business/ad-tag-reference-vast-iab-sizes-and-macros) |

You set these on each tag when you create it under **Offsite** > **Tags**, without code.

## What it reports

**Reports** > **Offsite** shows these metrics for your offsite tags. [Attribution: closed-loop commerce and conversion forecasts](https://begenuin.com/developers/get-started/any-business/attribution-closed-loop-commerce-and-conversion-forecasts) explains how outcomes are credited.

- **Impressions**: each time the tag serves in a buyer's slot.
- **Viewability**: measured through the AdVerifications in the tag.
- **Completion**: the share of plays watched to the end.
- **Clicks**: viewers who click back to your properties.
- **Attributed outcomes**: conversions credited to the tag after an offsite viewer reaches your property. [Offsite Attribution Postbacks](https://begenuin.com/developers/browse-by-products/offsite/offsite-attribution-postbacks) also sends them to the buyer's tools.

## Build on it

Brand Control Center generates the tag, so trafficking it needs no code. [Go live with monetization in your feeds, apps, and partner pages](https://begenuin.com/developers/developer-resources/sdk/go-live-with-monetization-in-your-feeds-apps-and-partner-pages) covers the live ad surfaces, such as in-feed ads and IAB units rendered from a tag ID in your app. [Receive engagement events in your own analytics](https://begenuin.com/developers/developer-resources/sdk/receive-engagement-events-in-your-own-analytics) sends what viewers do in Genuin views to your analytics tool and your warehouse.

The tag calls in the [Business Account API](https://begenuin.com/developers/get-started/any-business/business-account-api-provisioning-oauth-and-the-resource-map) are proposed, not live. [Live API today and the Business Account API roadmap](https://begenuin.com/developers/developer-resources/guides/live-api-today-and-the-business-account-api-roadmap) maps what you can call now to what's planned.