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Conversion tracking requires a Business plan subscription or higher.
When it comes to conversion tracking, a sale event happens when a user purchases your product or service. Examples include:
  • Subscribing to a paid plan
  • Usage expansion (upgrading from one plan to another)
  • Purchasing a product from your online store
A diagram showing how lead events are tracked in the conversion funnel
In this guide, we will be focusing on tracking sales conversion events with Dub on the client-side.

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Prerequisites

First, you’ll need to enable conversion tracking for your Dub links to be able to start tracking conversions:
If you’re using Dub Partners, you can skip this step since partner links will have conversion tracking enabled by default.
To enable conversion tracking for all future links in a workspace, you can do the following: To enable conversion tracking for all future links in a workspace, you can do the following:
  1. Navigate to your workspace’s Analytics settings page.
  2. Toggle the Workspace-level Conversion Tracking switch to enable conversion tracking for the workspace.
Enabling conversion tracking for a workspace
This option will enable conversion tracking in the Dub Link Builder for all future links.
Alternatively, you can also enable conversion tracking programmatically via the Dub API. All you need to do is pass trackConversion: true when creating or updating a link:
const link = await dub.links.create({
  url: "https://dub.co",
  trackConversion: true,
});
Then, you’ll need to install the Dub client-side script and set up the necessary configuration for client-side conversion tracking:
1

Allowlist your site's domain

Then, you’ll need to allowlist your site’s domain to allow the client-side conversion events to be ingested by Dub.To do that, navigate to your workspace’s Analytics settings page and add your site’s domain to the Allowed Hostnames list.This provides an additional layer of security by ensuring only authorized domains can track conversions using your publishable key.
Enabling conversion tracking for a workspace
You can group your hostnames when adding them to the allow list:
  • example.com: Tracks traffic only from example.com.
  • *.example.com: Tracks traffic from all subdomains of example.com, but not from example.com itself.
When testing things out locally, you can add localhost to the Allowed Hostnames list temporarily. This will allow local events to be ingested by Dub. Don’t forget to remove it once you’re ready to go live!
2

Generate your publishable key

Before you can track conversions on the client-side, you need to generate a publishable key from your Dub workspace.To do that, navigate to your workspace’s Analytics settings page and generate a new publishable key under the Publishable Key section.
Enabling conversion tracking for a workspace
3

Install @dub/analytics package

Next, install the Dub analytics script in your application.You can install the @dub/analytics script in several different ways:

React

Manual installation

Framer

Shopify

WordPress

Webflow

Google Tag Manager

You must configure the publishable key you generated in step 1 when installing the analytics script. Without this key, client-side conversion tracking will not work.
import { Analytics as DubAnalytics } from '@dub/analytics/react';

export default function RootLayout({
  children,
}) {
  return (
    <html lang="en">
      <body className={inter.className}>{children}</body>
      <DubAnalytics
        ...
        publishableKey="dub_pk_xxxxxxxx" // Replace with your publishable key
      />
    </html>
  );
}

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Track sale conversions

Once the analytics script is installed, you can start tracking sale events in your application on the client-side.

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Track sales from URL query parameters

If you redirect users to a confirmation page after a successful purchase, you can track sales by reading query parameters from the URL. 
import { useAnalytics } from "@dub/analytics/react";
import { useEffect } from "react";

export function OrderConfirmationPage() {
  const { trackSale } = useAnalytics();

  useEffect(() => {
    // Get query parameters from URL
    const params = new URLSearchParams(window.location.search);
    const customerId = params.get("customer_id");
    const amount = params.get("amount");
    const invoiceId = params.get("invoice_id");

    if (customerId && amount) {
      // Track the sale event
      trackSale({
        eventName: "Purchase",
        customerExternalId: customerId, // can also be customer email
        amount: parseInt(amount), // Amount in cents
        invoiceId: invoiceId || undefined,

        // Additional props for direct sale tracking (without prior lead event):
        // clickId: "cm3w...", // Read from dub_id cookie
        // customerName: "John Doe",
        // customerEmail: "john@example.com",
        // customerAvatar: "https://example.com/avatar.jpg",
      });
    }
  }, [trackSale]);

  return <div>Thank you for your purchase!</div>;
}

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Track sales from form submissions

You can also track sales directly when users complete a checkout form on your website. 
import { useAnalytics } from "@dub/analytics/react";
import { useState } from "react";

export function CheckoutForm() {
  const { trackSale } = useAnalytics();
  // …
}
  const handleSubmit = (e: React.FormEvent) => {
    e.preventDefault();

    // Track the sale event
    trackSale({
      eventName: "Purchase",
      customerExternalId: "cus_RBfbD57H", // can also be customer email
      amount: 5000, // $50.00
      invoiceId: "in_1MtHbELkdIwH",

      // For direct sale tracking (without prior lead event):
      // clickId: "cm3w...", // Read from dub_id cookie
      // customerName: "John Doe",
      // customerEmail: "john@example.com",
      // customerAvatar: "https://example.com/avatar.jpg",
    });
  };

  return (
    <form onSubmit={handleSubmit}>
      ...
    </form>
  );
}
Here are the properties you can include when sending a sale event:
PropertyRequiredDescription
customerExternalIdYesThe unique ID of the customer in your system. Will be used to identify and attribute all future events to this customer.
amountYesThe amount of the sale in cents.
paymentProcessorNoThe payment processor that processed the sale (e.g. Stripe, Shopify). Defaults to “custom”.
eventNameNoThe name of the event. Defaults to “Purchase”.
invoiceIdNoThe invoice ID of the sale. Can be used as a idempotency key – only one sale event can be recorded for a given invoice ID.
currencyNoThe currency of the sale. Defaults to “usd”.
metadataNoAn object containing additional information about the sale.
clickIdNo[For direct sale tracking]: The unique ID of the click that the sale conversion event is attributed to. You can read this value from dub_id cookie.
customerNameNo[For direct sale tracking]: The name of the customer. If not passed, a random name will be generated.
customerEmailNo[For direct sale tracking]: The email address of the customer.
customerAvatarNo[For direct sale tracking]: The avatar URL of the customer.
When to track sale Track sale events only after a user successfully completes a purchase or payment-related action, such as:
  • Completing a checkout or order
  • Subscription payment
  • Invoice payment
  • Any paid trial or demo conversion
Ensure the event is triggered only after the backend confirms the payment was successful. This guarantees accurate sale data and prevents false or incomplete entries.
Client-Side Conversion Tracking Limitations:
  • Ad blockers – Users with ad blockers may prevent tracking scripts from loading.
  • JavaScript disabled – Events won’t be tracked if users have JavaScript disabled.
  • Network issues – Failed network requests won’t retry automatically.
  • Privacy concerns – Some users may block client-side tracking for privacy reasons.
For more accurate conversion tracking, consider using server-side conversion tracking

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View your conversions

And that’s it – you’re all set! You can now sit back, relax, and watch your conversion revenue grow. We provide 3 different views to help you understand your conversions:
Time-series line chart
  • Funnel chart: A funnel chart view visualizing the conversion & dropoff rates across the different steps in the conversion funnel (clicks → leads → sales).
Funnel chart view showing the conversion & dropoff rates from clicks → leads → sales
  • Real-time events stream: A real-time events stream of every single conversion event that occurs across all your links in your workspace.
The Events Stream dashboard on Dub