Install

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Updated 21 Oct 2026

Add your site

Sign up and enter your domain. Subdomains such as app.acme.io and docs.acme.io are counted under it automatically. Each site gets a public key that starts with st_. You'll find it later in Site settings.

Paste the script

Put this in the <head> of every page. It loads with defer, so it never blocks rendering.

Any site

<script defer src="https://app.atrby.site/atrby.js" data-site="st_your_site_key"></script>

Next.js · app/layout.tsx

import Script from "next/script";

export default function RootLayout({ children }) {
  return (
    <html lang="en">
      <body>
        {children}
        <Script defer src="https://app.atrby.site/atrby.js" data-site="st_your_site_key" />
      </body>
    </html>
  );
}

WordPress, Webflow, Shopify and Google Tag Manager: paste the same tag wherever the platform lets you add code to the head of every page.

Single-page apps work as is

The script records a pageview on every history.pushState and back/forward navigation, so React, Vue and Svelte routers need nothing extra.

Options

Name	Type	Required	Description
data-site	string	Required	Your site key. Nothing is sent without it.
data-cookie	"true"	Optional	Keep the same visitor across days with a first-party cookie. Only takes effect when the site is set to cookie mode. See privacy modes.
data-autocapture	"true"	Optional	Record clicks on links and buttons as a click event. Text that looks like an email or a long number is masked.
data-api	URL	Optional	Send events somewhere other than https://app.atrby.site/api/ingest, for example your own proxy. See proxy.

Allowed hostnames

Events are accepted from your domain and its subdomains. Anything else is dropped, so a copy of your snippet on someone else's site can't skew your numbers. To count a staging domain or a preview host such as acme.pages.dev, add it under Site settings → Extra allowed hostnames.

Check it works, then connect revenue.