How to use
01
Enter the site URL
The homepage usually carries the most signals, since it loads the main JavaScript bundles, analytics snippets, and theme assets. Paste the address into the input field at the top.
02
Click Detect stack
The tool fetches the raw HTML through a proxy and tests each signature pattern against it, from __NEXT_DATA__ markers and wp-content paths to gtag calls and Shopify CDN references.
03
Read the grouped detections
Matches appear grouped under Framework, CMS, Analytics, Hosting, CDN, Styling, Payments, and Marketing. Each technology carries a high or medium badge so you know how firm the evidence is.
Why Tech Stack Detector
- Wappalyzer-style detection, 25+ technologies across Framework, CMS, Analytics, CDN, Styling, Payments.
- Pattern-based (no external API or login).
- Confidence rating: high = multiple matches, medium = single match.
Common questions
How reliable are the tech stack confidence badges?
High means two or more distinct patterns matched, which is rarely wrong. Medium means a single pattern hit, and that's where false positives live, for example a blog post that merely mentions Cloudflare can trip a text match. Treat medium results as leads to verify, not conclusions.
Can it detect CMS of a website like WordPress or Shopify?
Yes, CMS detection is the strongest category because platforms leave loud fingerprints. WordPress exposes wp-content paths and a generator meta tag, Shopify loads from cdn.shopify.com, Webflow ships data-wf attributes, and Wix, Squarespace, Ghost, and Drupal all have similar tells the signatures cover.
Which frameworks show up in tech stack results?
Next.js, React, Vue, Nuxt, Svelte, Angular, Astro, and Remix. Each has recognizable output, like the __NEXT_DATA__ script for Next.js, the __nuxt root div for Nuxt, or ng-version attributes for Angular. Note that a Next.js match usually implies React underneath even when React isn't separately flagged.
Why might a tech stack scan come back empty?
Some sites block automated fetches, and some custom-built stacks simply leave no recognizable markers in their HTML. Server-rendered pages that strip framework artifacts can also read as blank. An empty result means no known signature matched, not that the site runs nothing.
Does the tech stack check run any code on the target site?
No. It downloads the page HTML once and runs pattern matching on the text, the same as reading view-source. Nothing executes on the target, no account is needed, and no third-party detection API is called.
Is this a full replacement for Wappalyzer?
It uses the same signature-matching idea with 25+ curated technologies rather than thousands, which covers the CMS, framework, analytics, and payments questions most research actually asks. As a quick website tech checker for triage before a call, it does the job; for exhaustive fingerprinting of obscure libraries, a larger database wins.
What can a sales team read from a prospect's tech stack?
The CMS tells you the migration story: a WordPress detection means plugins and themes, Shopify means an ecommerce operation. Analytics maturity shows in whether they run Google Tag Manager, Segment, or Hotjar, and Stripe or PayPal flags a transactional business. Those details shape the first call more than anything on the pricing page.