Events fire twice in dev but once in prod.

That is React Strict Mode double-invoking effects in development only. initPixel is idempotent — subsequent calls are ignored. No action needed.

No events are showing up. What now?

Open DevTools Console and Network. Filter for script.js and /api/event. If they are blocked:csp, your Content Security Policy is blocking admaxxer.com — see /documentation/troubleshoot/csp. Also double-check that data-website-id matches the ID shown in your dashboard.

Events show up in staging but not production.

Confirm data-domain matches the production hostname exactly (no protocol, no trailing slash). Also confirm the website's Allowed Domains list in settings includes the prod domain.

My site is a single-page app — am I missing pageviews?

Use script.hash.js if you rely on location.hash routing. Otherwise the default script.js already hooks history.pushState/replaceState and tracks SPA navigations.

Install Admaxxer on Next.js | Admaxxer AI Analytics Docs

Steps

1 Install the package

Add @admaxxer/pixel to your project.

bash
```
npm install @admaxxer/pixel
```

2 Initialize in _app.tsx (Pages Router)

Create pages/_app.tsx (or edit yours) and call initPixel at module top-level. The function no-ops on the server, so this is safe.

pages/_app.tsx tsx

import type { AppProps } from 'next/app';
import { initPixel } from '@admaxxer/pixel';

initPixel({ websiteId: 'YOUR_WEBSITE_ID' });

export default function App({ Component, pageProps }: AppProps) {
  return <Component {...pageProps} />;
}

3 Or initialize in app/layout.tsx (App Router)

For the App Router, create a client component and import it from the root layout.

app/admaxxer-init.tsx tsx

'use client';
import { useEffect } from 'react';
import { initPixel } from '@admaxxer/pixel';

export function AdmaxxerInit() {
  useEffect(() => {
    initPixel({ websiteId: 'YOUR_WEBSITE_ID' });
  }, []);
  return null;
}

4 Verify the install

Load any public page on your site in a fresh browser tab. Within a few seconds, the Admaxxer dashboard realtime view should show the event. If nothing lands after 2 minutes, re-check the snippet is actually in the rendered HTML <head> (View Source, not just DevTools).

Troubleshooting

Events fire twice in dev but once in prod.: That is React Strict Mode double-invoking effects in development only. initPixel is idempotent — subsequent calls are ignored. No action needed.
No events are showing up. What now?: Open DevTools Console and Network. Filter for script.js and /api/event. If they are blocked:csp, your Content Security Policy is blocking admaxxer.com — see /documentation/troubleshoot/csp. Also double-check that data-website-id matches the ID shown in your dashboard.
Events show up in staging but not production.: Confirm data-domain matches the production hostname exactly (no protocol, no trailing slash). Also confirm the website's Allowed Domains list in settings includes the prod domain.
My site is a single-page app — am I missing pageviews?: Use script.hash.js if you rely on location.hash routing. Otherwise the default script.js already hooks history.pushState/replaceState and tracks SPA navigations.

Steps

1 Install the package

2 Initialize in _app.tsx (Pages Router)

3 Or initialize in app/layout.tsx (App Router)

4 Verify the install

Verify installation

Troubleshooting

Related install guides