Analytics debug mode is disabled in production

Debug mode sends extra diagnostic events, enables verbose console output, routes events to GA4 DebugView, and can expose internal event schemas and user property names in the browser console. Shipped to production it pollutes the real data stream with test events, inflates event counts by double-digit percentages, and leaks implementation detail visible in DevTools. Every downstream report based on that data is contaminated for as long as debug mode stayed on.

Gate every debug toggle on NODE_ENV:

posthog.init(process.env.NEXT_PUBLIC_POSTHOG_KEY, {
  loaded: (ph) => { if (process.env.NODE_ENV === 'development') ph.debug() }
})

For GA4: gtag('config', 'G-XXXXXXX', { debug_mode: process.env.NODE_ENV === 'development' }). After deploying, check GA4 DebugView in the live dashboard — it should show zero production hostnames. Audit components/AnalyticsProvider.tsx first since that is where most of these flags live.