Technology Stack Detector
Short answer
Detect the CMS, framework, hosting, analytics and marketing tools a site runs on, and whether it is served through a CDN.
What it does not do: It recognises technologies by known signatures in the HTML, headers and IP ranges, so bundled or hidden tools and sites behind a custom proxy may go undetected.
What It Does
Detects the technologies behind a URL — CMS, e-commerce platform, JavaScript frameworks and libraries, hosting, analytics, monitoring, marketing tools and chat widgets — from its HTML and response headers, and groups them by category. It also checks whether the site is served through a content delivery network (CDN).
Why It Matters
Knowing what a site runs on helps with competitor research, sales prospecting and migration planning — a Shopify store and a custom build call for different strategies. The CDN check shows whether the site is delivered from servers close to its visitors.
How It Works
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Enter the URL and click Detect
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We fetch the page and its response headers
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Match the page against our technology signatures and look for CDN markers
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Return the technologies by category and whether a CDN is in use
Sample input + output
url: https://rankproof.eu
Technologies: 5 found across 4 categories category value ───────────────────────────────────── Framework & libraries React Framework & libraries Next.js Analytics Google Analytics Marketing Mailchimp Chat & UX Intercom Content delivery network (CDN) CDN in use: yes OK detection method: response header
Who Uses This
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Sales Engineer
Before a call, check the prospect's stack to know which integrations matter.
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Agency Strategist
Review competitors' sites to see which platforms they build on.
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Migration Lead
Confirm the current platform, tools and CDN before recommending a migration.
Frequently Asked Questions
- How accurate is the detection?
- A detection fires when the page matches a known signature in its HTML, meta tags or response headers. There is no confidence percentage — a match is a match, though some signatures are more reliable than others.
- How is the CDN detected?
- From CDN-specific response headers and from the site's IP addresses, checked against a provider's published address ranges. A site behind a custom proxy may not be recognized.
- Can sites hide their stack?
- Partly. Removing headers hides the server type, and bundled JavaScript makes frameworks harder to spot. Most sites are still detectable through markup, asset paths and response headers.
- What categories are detected?
- CMS, e-commerce platforms, frameworks and libraries, hosting and CDN, analytics, monitoring, marketing tools, and chat and UX widgets.