posthog-js/lib/src/entrypoints/web-vitals.d.ts

Posthog-js allows you to automatically capture usage and send events to PostHog.

/**
 * Web Vitals entrypoint (without attribution)
 *
 * This is the lighter bundle (~6KB) that captures core web vitals metrics
 * without attribution data. Attribution data includes debugging information like
 * which elements caused layout shifts, timing breakdowns, etc.
 *
 * We split this into two bundles because:
 * 1. Attribution code adds ~6KB to the bundle size
 * 2. Attribution can cause memory issues in SPAs (onCLS holds references to detached DOM elements)
 *
 * Attribution is on by default for INP and LCP, so most pages load the attribution
 * bundle. This bundle loads only when attribution is fully disabled by setting:
 *   capture_performance: { web_vitals_attribution: false }
 *
 * @see web-vitals-with-attribution.ts
 */
import '@posthog/browser-common/utils/array-at-polyfill';
import { type WebVitalsCallbacks } from '../utils/globals';
declare const postHogWebVitalsCallbacks: WebVitalsCallbacks;
export default postHogWebVitalsCallbacks;