---
title: Server-Side Pixels
description: Server-side pixels provide secure backend conversion tracking with accurate attribution, detailed logs, and optional revenue reporting.
---

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# Server-Side Pixels

Server-side pixels let you send conversion events directly from your backend to Passendo. This provides a secure and reliable way to attribute actions, such as purchases, to the correct click, even if the user’s browser blocks client-side tracking.

With this setup, each conversion you send is linked to a unique order ID and a hashed email identifier, ensuring accurate reporting for publishers and advertisers.

#### Where to Find It

You can access server-side pixels from any order:

1. Open the **Order side** in your Emperor dashboard.
2. Select **Server Side** Pixels in the menu.
3. Copy the autogenerated server-side pixel URL for that specific order.

On this page, you’ll also see a log of all conversion pixels received, including the hashed email, value (if provided), timestamp, and whether each event was successfully marked as converted.

![Screenshot 2025-12-15 123024](https://site.passendo.com/hs-fs/hubfs/Screenshot%202025-12-15%20123024.png?width=688&height=336&name=Screenshot%202025-12-15%20123024.png)![image-png-Dec-15-2025-11-36-09-3709-AM](https://site.passendo.com/hs-fs/hubfs/image-png-Dec-15-2025-11-36-09-3709-AM.png?width=688&height=337&name=image-png-Dec-15-2025-11-36-09-3709-AM.png)

When to Use Server-Side Pixels

Both **publishers and advertisers can use server-side pixels** to measure conversion outcomes, such as:

- Purchase events
- Sign-ups or other performance actions
- Conversion value for revenue-based optimization
- Understanding which placement, newsletter, or campaign drove the user

If you need dependable conversion tracking that isn’t affected by browsers or frontend limitations, this method is recommended.

#### How It Works

### 1. Get Your Pixel URL

In the **Server Side Pixels** section of your order, copy the provided URL.

It already contains:

- The order ID
- Placeholders for EMAIL\_IDENTIFIER and the optional CLIENT\_REPLACE\_VALUE

### 2. Replace the Placeholders

Update the URL before sending it:

- Replace EMAIL\_IDENTIFIER with your hashed user identifier.
- (Optional) Replace CLIENT\_REPLACE\_VALUE with a float value if you want to send a revenue or value parameter.

### 3. Send the Request

Trigger a GET request to the completed URL from your server.

Each time you hit the URL, Passendo logs a conversion event for the associated order.

### That’s It — No Additional Setup Required

There are no dependencies beyond the ability to call the URL from your backend.

#### What You Gain

With server-side pixels, you can:

- Track conversions reliably,
- Attribute conversions to the correct click,
- View timestamped logs of all received conversion events,
- Work with conversion-based KPIs,
- Send optional conversion values for revenue reporting and optimization.

This feature gives publishers and advertisers a clear view of post-click performance, enabling stronger reporting and more data-driven decisions.

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