A deliberately broken install

This page configures the same GA4 property twice, initialises the same Meta pixel twice, and denies analytics consent. Nothing here talks to Google or Meta. The duplicates live in dataLayer and the fbq queue, which is exactly where the checker reads them from. Run the bookmarklet now.

The install

window.dataLayer = window.dataLayer || [];
function gtag(){dataLayer.push(arguments);}
gtag('js', new Date());
gtag('config', 'G-DEM0BR0KEN');
gtag('config', 'G-DEM0BR0KEN');
gtag('consent', 'default', { analytics_storage: 'denied' });

!function(f){if(f.fbq)return;var n=f.fbq=function(){n.queue.push(arguments)};
f._fbq=n;n.queue=[];}(window);
fbq('init', '8891234567890');
fbq('init', '8891234567890');

What you should see

• GA4 · Measured twice: G-DEM0BR0KEN configured 2x
• GA4 · No hit recorded yet, blamed on denied Consent Mode
• Meta Pixel · Initialised twice: 8891234567890 set up 2x
• Meta Pixel · Nothing sent yet
• Consent · analytics_storage is denied
• GTM · No GTM container found
• Clarity · No Clarity tag found