WhatBuilt

What's powering this website?

Paste any link and we'll tell you what tools that website is built with - the platform, the hosting, the analytics, and more. We'll also recommend what tools you should use to build your own website.

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Enter a website above and we'll help you identify the technologies in use.

500+Tools we know
12Categories
~2sAvg check time
0Accounts needed
What we find

From the pages you see to the cloud behind them.

Point us at a site and we'll tell you what it's built with, neatly grouped so you can skim the results in seconds.

Delivery networks

See which network speeds up the site - Cloudflare, Fastly, Akamai, and others.

Content platforms

Find out if a site runs on WordPress, Ghost, Webflow, Contentful, Sanity, or similar.

Frameworks

Spot the building blocks behind the scenes - Next.js, Astro, Rails, Django, and more.

Analytics & marketing

See the measurement and marketing tools in use, from Google Analytics to Plausible, PostHog, and others.

Hosting

Discover where the site lives - Vercel, Netlify, AWS, Cloudflare, Fly.io, and friends.

Languages behind it

Get a sense of what the backend is built with, whether it’s Node, Ruby, Python, PHP, or Go.

How it works

From a link to a full rundown in three steps.

  1. Step 01

    Paste a link

    Drop in any public website. No sign-up, no setup - just a URL and you’re good.

  2. Step 02

    We take a look

    We open the page the same way a browser would and pick up on the clues it shares.

  3. Step 03

    See the results

    You get a tidy list of tools the site uses, grouped by what they do, each with a confidence rating.

See it in action

Clear, organized, easy to skim.

Here's what a result looks like. Every finding comes with the little clue we spotted it from and a confidence rating, so you always know why it's there.

Checkedexample.com
Detected
5
SSL
Enabled
Response
412 ms

CDN

1
  • Cloudflarehigh

    server: cloudflare; cf-ray header present

Framework

1
  • Next.jsv15.2high

    x-powered-by: Next.js; /_next/ assets detected

Hosting

1
  • Vercelhigh

    x-vercel-id header; vercel-cache response

Analytics

2
  • Plausiblemedium

    script src plausible.io/js/script.js

  • PostHogmedium

    cookie ph_<project>_posthog

Tools we recommend

Build with the same tools the pros use.

A hand-picked shortlist of platforms we've seen power great sites.

Featured

Shopify

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FAQ

Answers to common questions.

Ready when you are

Check out any site in seconds.

Drop in a link and get a friendly breakdown of the tools behind it - no sign-up, no setup, no fuss.

What's this built with?