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@shrinkray-tools/speed-banner

v0.1.0

Published

Drop-in LCP and INP banner for development using web-vitals.

Vulnerabilities

Powered byPowered by Snyk
  • 0High
  • 0Medium
  • 0Low

Links

Maintainers

denodelldenodell

Keywords

web-vitalsperformanceINPLCPbannershrinkray

Readme

@shrinkray-tools/speed-banner

🔍 Lightweight development banner to visualize LCP and INP in real time — powered by web-vitals.

Install

npm install @shrinkray-tools/speed-banner

Usage

Vanilla JS

import { mountSpeedBanner } from '@shrinkray-tools/speed-banner';

mountSpeedBanner();

A small overlay will appear in the corner showing real-time LCP and INP values.

React Component

import { SpeedBanner } from '@shrinkray-tools/speed-banner/react';

function App() {
  return (
    <>
      <SpeedBanner />
      {/* your app code */}
    </>
  );
}

Options

  • containerId (default: "shrinkray-speed-banner"): DOM ID used for the banner container.

Only runs in development (NODE_ENV !== 'production'). No config needed.