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WhatStack
LookupSitesTechnologiesPricing
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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

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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.

Tag manager

19 tag manager technologies detected by WhatStack. Part of Analytics & Tracking.

  • Google Tag Manager
  • Signal
  • Tealium
  • Twilio Segment
  • Piwik PRO Tag Manager
  • Tealium iQ
  • Adobe DTM
  • Adobe Experience Platform Launch
  • Adobe Launch
  • Commanders Act
  • Commanders Act TagCommander
  • Elevar Conversion Tracking
  • Ensighten
  • Facebook Pixel Advanced Matching
  • Matomo Tag Manager
  • RudderStack
  • TagPro
  • Yahoo! Tag Manager
  • Yottaa