W
WhatStack
LookupSitesTechnologiesPricing
W
WhatStack

Detect the full technology stack of any website. Identify CMS platforms, JavaScript frameworks, analytics tools, ad tech, hosting providers, and 8,000+ web technologies.

Free API access included. Built for developers, agencies, and sales teams doing lead generation and competitive research.

Product

  • Technology Lookup
  • Technology Directory
  • Website Directory
  • Pricing & Plans
  • API Documentation
  • Browser Extension
  • Blog
  • Dashboard
  • Contribute

Categories

  • CMS & Site Builders
  • Ecommerce & Payments
  • JavaScript Frameworks
  • Analytics & Tracking
  • Advertising & Marketing
  • Infrastructure & Hosting
  • Security & Privacy

Popular Technologies

  • WordPress
  • Shopify
  • React
  • Next.js
  • Google Analytics
  • Cloudflare
  • WooCommerce

Compare

  • vs BuiltWith
  • vs Wappalyzer
  • vs WhatCMS

Account

  • Sign in
  • Create account

What is WhatStack?

WhatStack is a technology detection and website profiling platform. Discover what CMS, frameworks, analytics, ad tech, payment processors, and hosting providers any website uses. Our detection engine analyzes HTTP headers, HTML patterns, JavaScript globals, DNS records, cookies, and ads.txt to identify 8,000+ web technologies with high accuracy.

Use Cases

Lead generation for agencies and SaaS companies. Competitive analysis and market research. Technology adoption tracking across industries. Sales prospecting based on technology stack. Website auditing and technology profiling for consulting.

© 2026 WhatStack. All rights reserved.

Detecting 8,000+ web technologies across CMS, ecommerce, analytics, advertising, and more.

Website Technology Lookup

Enter any URL to discover its complete tech stack — CMS, frameworks, analytics, ad tech, hosting, and 12,000+ other technologies.

Try · ·

Recently analyzed

View all

What does a technology lookup reveal?

Our scanner analyzes 10 different data sources for every URL to build a complete technology profile.

CMS & Frameworks

WordPress, Shopify, React, Next.js, Laravel, and hundreds more — with version numbers when available.

Analytics & Tracking

Google Analytics, Hotjar, Segment, Meta Pixel, and every major analytics and tracking tool.

Advertising & Ad Tech

Advertising networks, SSPs, DSPs, and ad verification — including full ads.txt parsing.

Hosting & Infrastructure

CDN providers, cloud platforms, web servers, DNS configuration, and SSL certificates.

Ecommerce & Payments

Shopping carts, payment gateways, buy-now-pay-later providers, and checkout integrations.

Website Classification

Automatic industry categorization — e-commerce, news, SaaS, healthcare, and 25+ categories.

How does website technology detection work?

1

Enter a URL

Paste any website address into the scanner above. No account or API key needed for your first lookups.

2

We analyze 10 sources

Our engine checks HTTP headers, HTML source, scripts, meta tags, cookies, JavaScript globals, DOM structure, DNS records, URL patterns, and ads.txt.

3

Get your results

Within seconds you get a full technology profile — every technology, its category, version number, and a confidence score.

Frequently asked questions

Is the technology lookup free?

Yes. You can scan websites without an account. For higher volumes, create a free account to get 500 API requests per month.

How accurate is the detection?

Each result includes a confidence score (25–100%). We cross-reference multiple data sources per technology to minimize false positives.

How many technologies can you detect?

WhatStack currently detects 12,000+ technologies across 115 categories — from CMS platforms and JavaScript frameworks to ad networks, payment processors, and hosting providers.

View all FAQ

Need bulk lookups or API access?

Our API handles thousands of lookups per day with simple JSON responses.

API DocumentationView Pricing