Node.js is the JavaScript runtime used on servers for APIs, server-rendered sites and tooling. AIWebsiteDetector reports Node.js from `X-Powered-By` values such as Express, Koa, Hapi or Fastify, a Node Server header, and from a detected Express or NestJS application. A site that disables these headers, or a static export served from a CDN, shows no Node.js signal, so a missing result does not mean the site is not Node.js.
Paste any URL to instantly detect whether it was built with Node.js. Our engine checks 2 technical signals.
Node.js is used across many industries. These are the most common website types built on this platform:
Businesses of all sizes
Fast, reliable site building with professional results
Designers and developers
Powerful tools with minimal setup
Startups
Quick launch with scalable infrastructure
Content creators
Beautiful presentation for your work
Every Node.js website leaves distinctive technical fingerprints. Here's what to look for:
Explore how Node.js compares to similar backend framework tools: