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title: "Post-bid Viewability Measurement - Banner"
canonical: "https://hub.freewheel.tv/space/BC/115507287/Post-bid%20Viewability%20Measurement%20-%20Banner"
format: markdown
---
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# Overview

There is a direct integration with *IAS* and *DoubleVerify* for viewability reporting of desktop web, mobile web, and mobile in app display ads. In order to set up any of these vendors on a line item, navigate to the "Creative Add-On" field in the "Pixels and Scripts" section of the "Edit Creative" screen and select "IAS Banner Tag",  or “DoubleVerify Banner Tag”. Current prices for the add-ons are always listed in the Buzz user interface.

## Vendor Descriptions

Each vendor uses the IAB definition of Viewability and Measurability:

- *50% of the ad unit in view for a minimum of 1 second for standard ad formats such as leaderboards and MPUs.*

| **Vendor** | **Integral Ad Science (IAS)** | **DoubleVerify (DV)** |
| --- | --- | --- |
| **Supply** | - Desktop & Mobile Web Banner
- Mobile-App Banner: MRAID Environments or OMID (OMSDK) | - Desktop & Mobile Web Banner: All
- Mobile-App Banner: MRAID Environments or OMID (OMSDK) |
| **Reporting Behavior** | IAS delivers their data to Buyer Cloud each day near mid-day Eastern time. This data feed contains data for the *previous day*. Customers should expect to IAS viewability data within query tool reports approximately 28 hours post impression. | DoubleVerify aggregates and delivers files on an hourly basis. Data contained in these files is typically delivered 4-6 hours after the measurement has taken place. |

> ⚠️ At this time, you should not use multiple viewability partner creative add-ons on the same creative as the data set will be corrupted.

The metrics that are available in Report Builder include the following:

- **Viewable Impressions** - The number of impressions where at least 50% of an ad was in-view for more than a second
- **Measurable Impressions** - The number of impressions where viewability was measurable
- **vCPM** - The CPM calculated against viewable impressions
- **Viewability %** - Viewable Impressions / Total Impressions counted by Buyer Cloud
- **Measurable % **- Measurable Impressions / Total Impressions counted by Buyer Cloud
- **Viewability/Measurability %** - Viewable Impressions / Measurable Impressions
- **Viewable Seconds** - Total number of seconds that were viewable
- **Average Viewable Seconds** - Viewable Seconds / Viewable Impression

See below for a summary breakdown of the post-bid capabilities of each vendor:

| **Vendor** | **DV** | **IAS** |
| --- | --- | --- |
| **Measurable Impressions** | Y | Y |
| **Viewable Impressions** | Y | Y |
| **Invalid Impressions** | Y | Y |
| **Viewable Seconds** | N | Y |
| **Invalid Reason Codes** | N | N |