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

# Blended Cost Per Outbound Click: Cross-Platform Efficiency

> Track your cost per outbound click across all ad platforms. Measure efficiency of clicks that lead users off Meta, Google, and TikTok to your site.

<Tip>
  Blended Cost Per Outbound Click measures how much you pay for each click that leads users off the ad platform to your website, aggregated across all connected ad accounts.
</Tip>

## Formula

<Info>
  **Blended Cost Per Outbound Click** = **Blended Spend** ÷ **Blended Outbound Clicks**
</Info>

### Formula Components

| Metric                                                                                                       | Definition                                                 |
| ------------------------------------------------------------------------------------------------------------ | ---------------------------------------------------------- |
| [**Blended Spend**](/reference/metrics/advertising/blended/blended-spend/blended-spend)                      | Total advertising spend across all connected ad platforms  |
| [**Blended Outbound Clicks**](/reference/metrics/advertising/blended/blended-clicks/blended-outbound-clicks) | Clicks that lead users off the ad platform to your website |

| Metadata        |                                                                                                     |
| --------------- | --------------------------------------------------------------------------------------------------- |
| **Type**        | Currency                                                                                            |
| **Data Source** | [Meta Ads](/sources/facebook-ads), [Google Ads](/sources/google-ads), [TikTok Ads](/sources/tiktok) |
| **Aggregation** | Ratio                                                                                               |

***

## Example

Your campaigns spent **\$5,000** across all platforms and generated **2,500 outbound clicks**.

| Metric                      | Value      |
| --------------------------- | ---------- |
| Total Spend                 | \$5,000    |
| Outbound Clicks             | 2,500      |
| **Cost Per Outbound Click** | **\$2.00** |

***

## How It Works

This metric divides your total advertising spend by the number of clicks that actually send users to your website. Unlike standard CPC which includes all clicks, this focuses only on outbound clicks—giving you a true picture of what you pay for traffic.

***

## When to Use

| Scenario                           | Action                                                          |
| ---------------------------------- | --------------------------------------------------------------- |
| Comparing traffic acquisition cost | Use to evaluate cost efficiency across platforms                |
| Budget allocation decisions        | Shift spend toward platforms with lower cost per outbound click |
| Campaign optimization              | Identify campaigns with high costs relative to outbound traffic |
| Benchmarking efficiency            | Track changes over time to measure optimization impact          |

***

## Related Metrics

| Metric                                                                                                   | Relationship                                             |
| -------------------------------------------------------------------------------------------------------- | -------------------------------------------------------- |
| [Blended Spend](/reference/metrics/advertising/blended/blended-spend/blended-spend)                      | Numerator in the formula                                 |
| [Blended Outbound Clicks](/reference/metrics/advertising/blended/blended-clicks/blended-outbound-clicks) | Denominator in the formula                               |
| [Blended CPC](/reference/metrics/advertising/blended/blended-clicks/blended-cpc)                         | Similar metric using all clicks instead of outbound only |

[See all Blended Clicks metrics →](/reference/metrics/advertising/blended/blended-clicks)