---
title: "Insight: Cookieless Breakdown"
slug: "insight-cookieless-breakdown"
tags: ["Insights Lab", "Cookieless"]
updated: 2026-07-01T19:16:57Z
published: 2026-07-01T19:16:57Z
canonical: "help.quantcast.com/insight-cookieless-breakdown"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://help.quantcast.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Insight: Cookieless Breakdown

The Cookieless Breakdown report in Insights Lab measures ad sets with cookieless prospecting. To use and access it, you must activate Cookieless. See our [Cookieless Activation and Measurement](/v1/docs/cookieless-activation-and-measurement) article for more information.

## **Description**

![](https://cdn.us.document360.io/9a180fa0-df3b-4942-a5f6-b3905cf917d9/Images/Documentation/mceclip0 (1)(7).png?sv=2026-02-06&spr=https&st=2026-11-08T07%3A25%3A38Z&se=2026-11-08T08%3A25%3A38Z&sr=c&sp=r&sig=KQ8DlkM27yop2e2AZ2zQ2KGnHIbOBNvOG2z1RN1Vw38%3D)

**Note:** Hover over the bars for performance metrics.

- **With Third-party Cookies:** Shows the delivery breakdown for inventory delivered via third-party cookies.
- **Without Third-party Cookies:** Displays campaign delivery metrics for environments where third-party cookies are unavailable. Additional conversions attributed using Quantcast's proprietary identity approach, without third-party cookies. You can expand your prospecting reach by activating additional cookieless inventory in the ad set.

> **Note:** The report is updated daily with a 2-day lag. For example, if you check the report on 9/15, it will show data up to 9/13.

### **Available Metrics**

- Spend
- CPM
- Impressions
- Clicks
- CTR
- Uniques/Reach
- Conversion/Results
- CPA

For more information on our third-party cookieless approach, please contact [quantcast-idsupport@quantcast.com](mailto: quantcast-idsupport@quantcast.com).

## **Download**

To view download options, click the **More** menu at the top right of the graph.

![](https://cdn.us.document360.io/9a180fa0-df3b-4942-a5f6-b3905cf917d9/Images/Documentation/Cookieless breakdown - download options.png?sv=2026-02-06&spr=https&st=2026-11-08T07%3A25%3A38Z&se=2026-11-08T08%3A25%3A38Z&sr=c&sp=r&sig=KQ8DlkM27yop2e2AZ2zQ2KGnHIbOBNvOG2z1RN1Vw38%3D)