Analyze your conversion funnel

Analyze your Stripe Checkout conversion funnel with Google Analytics 4.

Use Google Analytics 4 (GA4) to track users as they progress through your Stripe Checkout purchase funnel. Before you begin, set up a GA4 account and add a GA4 property.

Set up your site

Create a product page with a Checkout button:

product.html
<html>
  <head>
    <title>Buy cool new product</title>
  </head>
  <body>
    <script>
      window.addEventListener("load", function () {
        document
          .getElementById("submit")
          .addEventListener("click", function (event) {
            event.preventDefault();
            fetch("/create-checkout-session", {
              method: "POST",
            })
              .then((response) => response.json())
              .then((checkoutSession) => {
                window.location.href = checkoutSession.url;
              });
          });
      });
    </script>
    <form>
      <button id="submit">Checkout</button>
    </form>
  </body>
</html>

Create a server-side endpoint that creates a Checkout Session and serves the pages:

index.js
// This example sets up endpoints using the Express framework.
// Watch this video to get started: https://youtu.be/rPR2aJ6XnAc.

const express = require("express");
require("dotenv").config();

const app = express();

// Set your secret key. Remember to switch to your live key in production!
// See your keys here: https://dashboard.stripe.com/apikeys

const stripe = require('stripe')('sk_test_BQokikJOvBiI2HlWgH4olfQ2'
);

const request = require("request");

app.post(
  "/create-checkout-session",
  express.urlencoded({ extended: false }),
  async (req, res) => {
    const session = await stripe.checkout.sessions.create({
      payment_method_types: ["card"],
      line_items: [
        {
          price_data: {
            currency: "usd",
            product_data: {
              name: "T-shirt",
            },
            unit_amount: 2000,
          },
          quantity: 1,
        },
      ],
      mode: "payment",
      success_url: req.get("origin") + "/success",
      cancel_url: req.get("origin") + "/cancel",
    });

    res.json({ url: session.url });
  }
);

app.get("/product", function (req, res) {
  res.sendFile(__dirname + "/product.html");
});

app.get("/success", function (req, res) {
  res.sendFile(__dirname + "/success.html");
});

app.get("/cancel", function (req, res) {
  res.sendFile(__dirname + "/cancel.html");
});

app.listen(4242, () => console.log(`Listening on port ${4242}!`));

Create a success page:

success.html
<html>
  <head>
    <title>Thanks for your order!</title>
  </head>
  <body>
    <h1>Thanks for your order!</h1>
    <p>
      We appreciate your business! If you have any questions, please email
      <a href="mailto:orders@example.com">orders@example.com</a>.
    </p>
  </body>
</html>

Create a canceled page:

canceled.html
<html>
  <head>
    <title>Order Canceled!</title>
  </head>
  <body>
    <p>
      <a href="/product">Start another order</a>.
    </p>
  </body>
</html>

Instrumentation walkthrough

In the following example, we assume your customer has:

Viewed your product page.
Clicked the Buy button and was redirected to Stripe Checkout.
Completed the payment and was redirected to the success page.

Quick summary

Add instrumentation

Add checkout.stripe.com to your referral exclusion list.

Add Google Analytics tags to your product, success, and canceled pages. Tags automatically fire an event on page load.

product.html
<html>
  <head>
    <!-- START GOOGLE ANALYTICS -->
    <script
      async
      src="https://www.googletagmanager.com/gtag/js?id=<GOOGLE_ANALYTICS_CLIENT_ID>"
    ></script>
    <script>
      window.dataLayer = window.dataLayer || [];
      function gtag() {
        window.dataLayer.push(arguments);
      }
      gtag("js", new Date());
      gtag("config", "<GOOGLE_ANALYTICS_CLIENT_ID>");
    </script>
    <!-- END GOOGLE ANALYTICS -->
    <title>Buy cool new product</title>
  </head>
  <body>
    <script>
      window.addEventListener("load", function () {
        document
          .getElementById("submit")
          .addEventListener("click", function (event) {
            event.preventDefault();
            fetch("/create-checkout-session", {
              method: "POST",
            })
              .then((response) => response.json())
              .then((checkoutSession) => {
                window.location.href = checkoutSession.url;
              });
          });
      });
    </script>
    <form>
      <button id="submit">Checkout</button>
    </form>
  </body>
</html>

success.html
<html>
  <head>
    <!-- START GOOGLE ANALYTICS -->
    <script
      async
      src="https://www.googletagmanager.com/gtag/js?id=<GOOGLE_ANALYTICS_CLIENT_ID>"
    ></script>
    <script>
      window.dataLayer = window.dataLayer || [];
      function gtag() {
        window.dataLayer.push(arguments);
      }
      gtag("js", new Date());
      gtag("config", "<GOOGLE_ANALYTICS_CLIENT_ID>");
    </script>
    <!-- END GOOGLE ANALYTICS -->
    <title>Thanks for your order!</title>
  </head>
  <body>
    <h1>Thanks for your order!</h1>
    <p>
      We appreciate your business! If you have any questions, please email
      <a href="mailto:orders@example.com">orders@example.com</a>.
    </p>
  </body>
</html>

canceled.html
<html>
  <head>
    <!-- START GOOGLE ANALYTICS -->
    <script
      async
      src="https://www.googletagmanager.com/gtag/js?id=<GOOGLE_ANALYTICS_CLIENT_ID>"
    ></script>
    <script>
      window.dataLayer = window.dataLayer || [];
      function gtag() {
        window.dataLayer.push(arguments);
      }
      gtag("js", new Date());
      gtag("config", "<GOOGLE_ANALYTICS_CLIENT_ID>");
    </script>
    <!-- END GOOGLE ANALYTICS -->
    <title>Order Canceled!</title>
  </head>
  <body>
    <p>
      <a href="/product">Start another order</a>.
    </p>
  </body>
</html>

Fire an event just before redirecting to Stripe Checkout:

product.html
<html>
  <head>
    <!-- START GOOGLE ANALYTICS -->
    <script
      async
      src="https://www.googletagmanager.com/gtag/js?id=<GOOGLE_ANALYTICS_CLIENT_ID>"
    ></script>
    <script>
      window.dataLayer = window.dataLayer || [];
      function gtag() {
        window.dataLayer.push(arguments);
      }
      gtag("js", new Date());
      gtag("config", "<GOOGLE_ANALYTICS_CLIENT_ID>");
    </script>
    <!-- END GOOGLE ANALYTICS -->
    <title>Buy cool new product</title>
  </head>
  <body>
    <script>
      window.addEventListener("load", function () {
        document
          .getElementById("submit")
          .addEventListener("click", function (event) {
            event.preventDefault();
            fetch("/create-checkout-session", {
              method: "POST",
            })
              .then((response) => response.json())
              .then((checkoutSession) => {
                window.location.href = checkoutSession.url;
                gtag("event", "begin_checkout", {
                  event_callback: function () {
                    window.location.href = checkoutSession.url;
                  },
                });
              });
          });
      });
    </script>
    <form>
      <button id="submit">Checkout</button>
    </form>
  </body>
</html>