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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.

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Technology Lookup
Technology Directory
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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

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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.

Google Tag Manager Technology Trend

Google Tag Manager is detected on 104,105 websites in the WhatStack database.

Technologies commonly used with Google Tag Manager

Open Graph — 4% co-occurrence
Schema.org — 3% co-occurrence
PHP — 3% co-occurrence
HSTS — 2% co-occurrence
jQuery — 2% co-occurrence
Google Analytics — 2% co-occurrence
Cloudflare — 2% co-occurrence
MySQL — 2% co-occurrence

Alternatives to Google Tag Manager

Signal — 3,213 websites
Piwik PRO Tag Manager — 475 websites
Tealium iQ — 427 websites
Adobe DTM — 0 websites
Adobe Experience Platform Launch — 0 websites
Adobe Launch — 0 websites
Commanders Act — 0 websites
Commanders Act TagCommander — 0 websites
Ensighten — 0 websites
Facebook Pixel Advanced Matching — 0 websites

Google Tag Manager Trend — Adoption, Growth & Co-occurring Technologies | WhatStack