How to measure a Shopify store with Trackless
On Shopify, we use a custom pixel in Customer events to record visits, purchase-funnel steps and completed orders. Orders received from the browser appear in reports but are excluded from billing and the pricing band. This integration does not yet support server-side order verification. Your data stays on our EU server and the first 30 days are free.
- Trackless does not store analytics cookies or measurement identifiers of its own, but this connection runs a browser snippet or pixel. Assess the legal basis, cookie banner and whether the snippet should be gated by consent against the full site setup.
- Blocking: the pixel runs in the browser - under aggressive blocking, some visits may be missed.
- What it measures: visits, search, product views, cart, checkout and completed orders with their declared value, currency and number.
How it works
- One custom pixel. Add it under Customer events to track visits, the purchase funnel and completed orders. You do not need to edit your theme code.
- Your data stays yours. Measurement ends on our EU server; we do not share the data with advertising systems.
Step 1: Get your measurement token
Sign up at trackless.cz, log in and under My sites click Add site. Choose Shopify and Trackless will immediately show you the tracking token - a string that starts with tlc_. You will paste it into the pixel in a moment.
Step 2: Add a custom pixel to Shopify
In your Shopify admin open Settings → Customer events. At the top, switch from App pixels to Custom pixels, then click Add custom pixel. Name it e.g. "Trackless", paste this pixel into the code field as plain JavaScript (without a <script> tag), and replace VAS_MERICI_TOKEN with your token from step 1. Replace Shopify's starter code completely. Then click Save at the top and start the pixel with Connect:
var TRACKLESS_TOKEN = 'VAS_MERICI_TOKEN';
var TRACKLESS_ENDPOINT = 'https://trackless.cz/collect';
function num(x) {
x = String(x == null ? '' : x).replace(/[^\d,.\-]/g, '');
if (x.indexOf(',') > -1) { x = x.replace(/\./g, '').replace(',', '.'); }
return Number(x) || 0;
}
function digits(x) { return String(x == null ? '' : x).replace(/\D/g, ''); }
function send(ctx, e) {
try {
var d = (ctx && ctx.document) || {}, loc = d.location || {}, nav = (ctx && ctx.navigator) || {};
fetch(TRACKLESS_ENDPOINT, {
method: 'POST',
keepalive: true,
headers: { 'Content-Type': 'text/plain' },
body: JSON.stringify({
v: 1, t: TRACKLESS_TOKEN,
u: String(loc.href || '').slice(0, 2048),
r: String(d.referrer || '').slice(0, 1024),
l: String(nav.language || '').slice(0, 35),
e: e || null
})
});
} catch (err) { /* mereni nikdy nesmi shodit obchod */ }
}
analytics.subscribe('page_viewed', function (event) {
try { send(event.context, null); } catch (err) { /* nikdy neshodit obchod */ }
});
analytics.subscribe('search_submitted', function (event) {
try {
var q = event.data && event.data.searchResult && event.data.searchResult.query;
if (!q) { return; }
send(event.context, { event_type: 'search', search_query: String(q).slice(0, 200), page_type: 'search' });
} catch (err) { /* nikdy neshodit obchod */ }
});
analytics.subscribe('collection_viewed', function (event) {
try {
var col = (event.data && event.data.collection) || {};
send(event.context, { event_type: 'view_category', id_object: digits(col.id), page_type: 'category' });
} catch (err) { /* nikdy neshodit obchod */ }
});
analytics.subscribe('product_viewed', function (event) {
try {
var pv = (event.data && event.data.productVariant) || {}, pr = pv.product || {}, pc = pv.price || {};
send(event.context, {
event_type: 'view_item', id_object: digits(pr.id),
value: num(pc.amount), currency: String(pc.currencyCode || '').toUpperCase(), page_type: 'product'
});
} catch (err) { /* nikdy neshodit obchod */ }
});
analytics.subscribe('product_added_to_cart', function (event) {
try {
var cl = (event.data && event.data.cartLine) || {}, m = cl.merchandise || {}, pr = m.product || {};
var cost = (cl.cost && cl.cost.totalAmount) || m.price || {};
send(event.context, {
event_type: 'add_to_cart', id_object: digits(pr.id),
quantity: Number(cl.quantity) || 1, value: num(cost.amount),
currency: String(cost.currencyCode || '').toUpperCase()
});
} catch (err) { /* nikdy neshodit obchod */ }
});
analytics.subscribe('checkout_started', function (event) {
try {
var c = (event.data && event.data.checkout) || {}, tp = c.totalPrice || {};
send(event.context, {
event_type: 'begin_checkout', value: num(tp.amount),
currency: String(tp.currencyCode || c.currencyCode || '').toUpperCase(), page_type: 'checkout'
});
} catch (err) { /* nikdy neshodit obchod */ }
});
analytics.subscribe('checkout_completed', function (event) {
try {
var c = (event.data && event.data.checkout) || {};
var id = (c.order && c.order.id != null) ? digits(c.order.id) : '';
if (!id) { return; }
var tp = c.totalPrice || {};
send(event.context, {
event_type: 'order', page_type: 'order', id_object: id,
value: num(tp.amount), currency: String(tp.currencyCode || c.currencyCode || 'CZK').toUpperCase()
});
} catch (err) { /* nikdy neshodit obchod */ }
});The pixel settings have a Customer privacy section. Because Trackless does not store analytics cookies or measurement identifiers of its own in the browser, set the Permission option according to your legal assessment and the full store setup. In the same area also open Data sale and set it according to whether your store sells or shares data for advertising purposes. Trackless itself does not pass data to advertising systems; if your store does not sell data, set Data sale accordingly. The pixel uses Customer events. It does not use the old "additional scripts" or checkout.liquid, whose support Shopify has ended.
Step 3: Check that measurement is running
Open your store in a private browser window and browse a few pages. The visit usually appears in your dashboard at trackless.cz within 15 minutes, after background processing. Use a test order to verify that an order and revenue marked browser_unverified arrive. Shopify runs the custom pixel in its sandbox on both development and live stores, so the sandbox is not a reliable test-mode marker.
What you'll measure
- Sources and channels: UTM parameters, referrers and Google Analytics 4-style channels - including visits from AI assistants.
- Devices, browsers and operating systems.
- Visitors' countries and languages.
- Completed orders with the value, currency and order number supplied by the browser.
- The purchase funnel: product view - add to cart - checkout - completed order, plus what visitors searched for.
Limits, so you know what you're getting into
- We measure visits using browser code. If a browser or extension blocks it, some visits will be missing from your reports.
- We receive the order number and amount from the browser without server-side verification. The order appears in order, revenue and conversion reports but is excluded from billing and the pricing band. This integration does not yet include a server-side order connection.
- Also running a store on an open platform (PrestaShop, WooCommerce, Joomla / VirtueMart, OpenCart, Magento 2, Shopware 6 or Sylius)? Use our server-side modules there - they measure directly on the server, they do not depend on a browser snippet running, and depending on the platform can also handle orders, line items and margins.
Frequently asked questions
Do I need visitor consent or a cookie banner for Trackless?
There is no one-size-fits-all answer. Trackless does not store measurement identifiers or analytics cookies of its own in the browser, but this connection runs a browser snippet or pixel. Assess the legal basis, cookie banner and whether the snippet should be gated by consent against the full site setup and the other tools you run.
Will the pixel slow my store down?
Shopify runs custom pixels separately in an isolated environment (a sandbox) managed by Shopify, rather than as code inserted into the e-shop theme. This can limit the impact on the page, but does not guarantee zero overhead. The actual effect on speed depends on the e-shop, pixel settings and the visitor's device.
Can I use Trackless together with Google Analytics 4 or Shopify analytics?
Yes. Trackless runs next to them and does not affect them. Expect different numbers: Trackless is less dependent on its own analytics cookies than client-side analytics, so it may record some visits that cookie-dependent tools count only partially or as modelled data when analytics cookies are rejected.
How much does Trackless cost?
The first 30 days are free. The pricing band is then based only on server-verified orders and revenue; pixel orders do not increase it. See the pricing for exact figures.
Your site says "without JavaScript" - and this is a pixel in JavaScript. How does that add up?
Our server-side modules and plugins for open platforms (PrestaShop, WordPress/WooCommerce, Joomla / VirtueMart, OpenCart, Magento 2, Shopware 6 and Sylius) measure directly on the store server without our own measurement JavaScript. On this platform the available route is a browser snippet or pixel. It sends the page URL, referrer, language and events to the Trackless endpoint; it does not store cookies or measurement identifiers of its own. Visitor identity is computed on the server from the request. This limits the identifiers Trackless adds to the browser, but the legal assessment and any consent gating depend on the deployment.
Try it on your own store
Signing up takes a minute, adding the pixel a few more. The first 30 days cost nothing.