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WhatStack
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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

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  • vs Wappalyzer
  • vs WhatCMS

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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.

Development Tools

Programming languages, build systems, CI/CD, error tracking, performance monitoring, and documentation.

200 technologies in this category.

Subcategories

  • Performance monitoring (63 technologies)
  • Issue trackers (58 technologies)
  • Error tracking (50 technologies)
  • Documentation (40 technologies)
  • Programming language (39 technologies)
  • Performance (36 technologies)
  • CI/CD (20 technologies)
  • Feature management (15 technologies)
  • Build system (9 technologies)
  • Personalisation (6 technologies)
  • Static site generator (5 technologies)
  • PaaS (3 technologies)
  • RUM (3 technologies)
  • Miscellaneous (2 technologies)
  • JavaScript framework (1 technologies)
  • WordPress plugins (1 technologies)
  • Customer support (1 technologies)
  • Heatmap & session replay (1 technologies)
  • JavaScript library (1 technologies)
  • Loyalty & rewards (1 technologies)
  • CRM (1 technologies)
  • Cache tool (1 technologies)
  • CDN (1 technologies)
  • CMS (1 technologies)
  • Booking & scheduling (1 technologies)
  • Consent management (1 technologies)
  • Payment processor (1 technologies)

All Development Tools Technologies

  • PHP (Programming language)
  • Priority Hints (Performance)
  • Node.js (Programming language)
  • Python (Programming language)
  • LazySizes (JavaScript library, Performance)
  • Bun (Programming language)
  • Ruby (Programming language)
  • Java (Programming language)
  • New Relic (Performance monitoring)
  • VWO (A/B testing, Personalisation, Feature management)
  • Checkly (Issue trackers)
  • Sentry (Error tracking)
  • Google PageSpeed (Cache tool, Web server extensions, Performance)
  • StatusCake (Performance monitoring)
  • Dynatrace (Performance monitoring)
  • Optimizely (A/B testing, Personalisation, Feature management)
  • TypeScript (Programming language)
  • Cloudflare Zaraz (Performance)
  • Vite (Build system, Miscellaneous)
  • Atlassian Statuspage (Issue trackers, PaaS)
  • Google Cloud Trace (Performance)
  • Perl (Programming language)
  • Datadog RUM (Performance monitoring)
  • Nostra (Performance)
  • Lozad.js (JavaScript library, Performance)
  • Formidable Form (WordPress plugins, Booking & scheduling, Error tracking)
  • LazySizes unveilhooks plugin (JavaScript library, Performance)
  • AB Tasty (A/B testing, Personalisation, Feature management)
  • YUI Doc (Documentation)
  • C (Programming language)
  • CFML (Programming language)
  • StatusPage (Performance monitoring)
  • Kameleoon (A/B testing, Personalisation, Feature management)
  • Partytown (Performance)
  • BugSnag (Analytics, Issue trackers)
  • Highlight.io (Error tracking, Heatmap & session replay)
  • Alia (Personalisation, Error tracking)
  • a3 Lazy Load (WordPress plugins, Performance)
  • Accessibly Accessibility (Error tracking, Personalisation)
  • ActBlue (Performance monitoring)
  • Adobe Flash (Programming language)
  • Adobe RoboHelp (Documentation)
  • Advanced CSS/JS Aggregation (Performance)
  • Airbrake (Error tracking)
  • Airform (Error tracking)
  • AiSpeed (Performance, Personalisation)
  • Albacross (Analytics, Feature management)
  • AlumnIQ (Performance monitoring)
  • Ansible (CI/CD)
  • AppDynamics (Performance monitoring)
  • Arengu (User onboarding, Error tracking)
  • Argo CD (CI/CD)
  • Arreva (Performance monitoring)
  • Asana (Issue trackers)
  • AsciiDoc (CMS, Editors, Programming language)
  • Asciidoctor (Documentation)
  • Atatus (Performance monitoring, Error tracking)
  • Atlassian Jira (Issue trackers)
  • Atlassian Jira Issue Collector (Issue trackers, Static site generator)
  • Atomseo (Email, Performance)
  • AWS CloudWatch RUM (Performance monitoring)
  • Azure Monitor (Analytics, Performance)
  • BackerKit (Performance monitoring)
  • Bamboo (CI/CD)
  • BerqWP (Performance)
  • Better Stack (Issue trackers)
  • Better Uptime (Performance monitoring)
  • BetterDocs (Documentation)
  • BigPipe (Performance)
  • Biome (Build system)
  • Blackbaud CRM (Performance monitoring)
  • Blazy (Performance)
  • Blitz (Performance)
  • Blue (Feature management)
  • Booster Page Speed Optimizer (Personalisation, Performance)
  • BRYNK (Performance monitoring)
  • Bugfender (Error tracking)
  • BugHerd (Issue trackers)
  • Buglog (Issue trackers)
  • Bugzilla (Issue trackers)
  • Bump (Documentation)
  • Buy me a coffee (Widgets, Performance monitoring)
  • Cachet (Issue trackers)
  • Calibre (Performance monitoring)
  • Campflow (Error tracking)
  • Captify (Feature management)
  • CatchJS (Error tracking)
  • Catchpoint (Performance monitoring)
  • Chef (CI/CD)
  • Chronosphere (Performance monitoring)
  • CircleCI (CI/CD)
  • Classy (Performance monitoring)
  • Click & Pledge (Performance monitoring)
  • ClickHelp (Documentation)
  • ClickUp (Documentation)
  • Clojure (Programming language)
  • Cloudflare Rocket Loader (Performance)
  • Code Climate (Build system)
  • Codefresh (CI/CD)
  • CoffeeScript (Programming language)
  • Combodo iTop (Issue trackers, Miscellaneous)
  • Community Funded (Performance monitoring)
  • ConfigCat (Feature management)
  • Cronitor (Performance)
  • Crystal (Programming language)
  • cState (Issue trackers)
  • CustomDonations (Performance monitoring)
  • Dart (Programming language)
  • DebugBear (Error tracking, Performance monitoring)
  • Digioh (Error tracking)
  • DocFX (Documentation)
  • Docsify (Documentation)
  • Doctave (Documentation)
  • Donorbox (Performance monitoring)
  • DonorPerfect (Performance monitoring)
  • Doxygen (Documentation)
  • Dragon (Programming language)
  • Drone CI (CI/CD)
  • Edgemesh (Performance)
  • Elastic APM (Performance monitoring)
  • Elixir (Programming language)
  • Elm (Programming language, JavaScript framework)
  • Embed Optimizer (WordPress plugins, Performance)
  • Enhanced Responsive Images (WordPress plugins, Performance)
  • Eppo (A/B testing, Feature management)
  • Erlang (Programming language)
  • esbuild (Build system)
  • EveryAction (Performance monitoring)
  • Exceptionless (Error tracking)
  • F# (Programming language)
  • FastAPI (Web framework, Programming language)
  • Fasterize (Performance)
  • Faveo (Issue trackers)
  • Feedback Fish (Issue trackers)
  • Flask (Web framework, Programming language)
  • Flux CD (CI/CD)
  • Flying Pages (WordPress plugins, Performance)
  • FlyingPress (WordPress plugins, Performance)
  • Flyspray (Issue trackers)
  • Form.io (Error tracking)
  • Form.taxi (Error tracking)
  • Formaloo (Error tracking)
  • FormAssembly (Error tracking)
  • FormBold (Error tracking)
  • Formcake (Error tracking)
  • Formcan (Error tracking)
  • FormDr (Error tracking)
  • Formester (Error tracking)
  • Formless (Error tracking)
  • Formli (Error tracking)
  • Formrun (Error tracking)
  • Formsort (Error tracking)
  • Frontlead (Error tracking)
  • Frontstream (Performance monitoring)
  • Fundraise Up (Performance monitoring)
  • FundRazr (Performance monitoring)
  • Funnelforms (WordPress plugins, Error tracking)
  • Funraise (Performance monitoring)
  • Furo (Documentation)
  • GeneXus (Programming language)
  • Get Satisfaction (Issue trackers)
  • GetTerms (Documentation)
  • GitBook (Documentation)
  • GitLab (Issue trackers, Static site generator)
  • GitLab CI (CI/CD)
  • GitLab CI/CD (Build system, Static site generator)
  • GiveCampus (Performance monitoring)
  • GiveSmart (Performance monitoring)
  • GiveWP (Performance monitoring, WordPress plugins)
  • GivingFuel (Performance monitoring)
  • GlitchTip (Error tracking)
  • Globo Form Builder (Personalisation, Error tracking)
  • Go (Programming language)
  • Golden Volunteer (Performance monitoring)
  • Google Forms (Error tracking)
  • GoZen Forms (Error tracking)
  • Growform (Error tracking)
  • GrowthBook (A/B testing, Feature management)
  • Gumlet (Performance)
  • Haddock (Documentation)
  • Harness (CI/CD)
  • Haskell (Programming language)
  • HeadJS (JavaScript library, Performance)
  • Help Scout (Issue trackers, Customer support)
  • Help Scout Docs (Customer support, Documentation)
  • HelpDocs (Documentation)
  • HetrixTools (Issue trackers)
  • Heyflow (Page builders, Error tracking)
  • Honeybadger (Error tracking)
  • Honeycomb (Performance monitoring)
  • HulkApps Form Builder (Booking & scheduling, Personalisation, Error tracking)
  • Hund.io (Issue trackers)
  • Hyperspeed (Performance, Personalisation)
  • Image Placeholders (WordPress plugins, Performance)
  • Image Prioritizer (WordPress plugins, Performance)
  • ImageEngine (CDN, Performance)
  • Imba (Programming language)
  • Incident.io (Issue trackers)
  • Inputflow (Error tracking)
  • Instana (Performance monitoring)