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.

WordPress plugin

56 wordpress plugin technologies detected by WhatStack. Part of CRM & Business Tools.

  • Add to Calendar Button
  • Advanced Appointment Booking & Scheduling
  • Appointment Booking Calendar
  • Appointment Hour Booking – Booking Calendar
  • BA Book Everything
  • Booking Activities
  • Booking Calendar
  • Booking Calendar | Appointment Booking | Bookit
  • Booking for Appointments and Events Calendar
  • Booking Package
  • Bookings for WooCommerce
  • Calendar
  • Easy Appointment Booking & Scheduling System
  • Easy Appointments
  • Easy Booking
  • EMC – Easily Embed Calendly Scheduling Features
  • Event Calendar – Calendar
  • Event Single Page Builder For The Event Calendar
  • EventON – Events Calendar
  • Events Calendar
  • Events Calendar for GeoDirectory
  • Events Manager
  • Events Search For The Events Calendar
  • Events Shortcodes For The Events Calendar
  • Five Star Restaurant Reservations
  • Fluent Booking
  • Hotel Booking
  • Hydra Booking
  • Import Eventbrite Events
  • Import Social Events
  • LatePoint – Calendar Booking Plugin for Appointments and
  • Mang Board WP
  • MembershipWorks – Membership, Events & Directory
  • MotoPress Appointment Booking
  • MotoPress Hotel Booking
  • MotoPress Hotel Booking for Elementor
  • Online Scheduling and Appointment Booking System
  • Persian Date
  • Pretty Google Calendar
  • Publish to Schedule
  • RSVP and Event Management
  • Salon Booking System
  • Setmore Appointments
  • SimplyBook.me – Booking and reservations calendar
  • Spiffy Calendar
  • Store Vacation for WooCommerce
  • Sugar Calendar
  • The Events Calendar Shortcode & Block
  • The Events Calendar: Category Colors
  • Timetable and Event Schedule
  • UseStrict's Calendly Embedder
  • WP FullCalendar
  • WP Hotel Booking
  • WP Hotelier
  • WP Simple Booking Calendar
  • WP-Persian