Website Technology & Tech Stack Detector

Website Technology Detector is a tech stack lookup for lists of websites. It finds out what each site is built with (CMS, ecommerce platform, analytics, JavaScript framework, CDN and hosting, fonts, support chat, marketing and payment tools) and gives a confidence score and the evidence for every technology. It samples a few internal pages, not just the homepage, and uses plain HTTP, so big lists stay fast and cheap. A lightweight BuiltWith or Wappalyzer alternative for lead lists and competitor research.

Pricing: pay per result: $1.50 per 1,000 results ($0.15 per 100, $15.00 per 10,000), plus $0.00005 per run start. One result = one website checked.

What data you get (one row per website)

Field	What it is
site, statusCode	The website and its homepage HTTP status
technologies	List of { technology, category, confidence, evidence }, highest confidence first
technologyCount	How many technologies were found
byCategory	The same list grouped by category, easy to read in a spreadsheet

What it detects (47 technologies)

Category	Technologies
CMS	WordPress, Drupal, Joomla, Ghost
Ecommerce	Shopify, WooCommerce, Magento, BigCommerce
Website builder	Wix, Squarespace, Webflow
JS framework	React, Next.js, Vue.js, Nuxt, Angular, Svelte, Gatsby
JS library / UI	jQuery, Bootstrap, Tailwind CSS
Analytics	Google Analytics 4, Google Analytics (UA), Meta Pixel, Hotjar, Mixpanel, Segment, Matomo, Plausible, Fathom
Tag manager	Google Tag Manager
Marketing	HubSpot, Klaviyo, Mailchimp
Support	Intercom, Zendesk, Drift
Payment	Stripe, PayPal
CDN / hosting	Cloudflare, Amazon CloudFront, Fastly, Netlify, Vercel
Web server	Nginx, Apache
Fonts	Google Fonts, Adobe Fonts (Typekit), Font Awesome

Each match records the evidence it was based on (for example a script path, a response header or a generator tag), so you can check any result yourself.

How to use it

1. Paste your websites into Websites.
2. Leave Sample internal pages on to also read two internal pages per site (catches tools that only load on some pages).
3. Optionally set Minimum confidence (0–1) to hide weaker matches.
4. Click Start, then export to CSV or Excel, or read the results through the API.

Input example

{
  "startUrls": [
    { "url": "https://apify.com" },
    { "url": "https://example-store.com" }
  ],
  "samplePages": true,
  "minConfidence": 0
}

Output example

A real row from a test run on https://apify.com (13 Oct 2026), shortened:

{
  "site": "https://apify.com",
  "statusCode": 200,
  "technologies": [
    { "technology": "HubSpot", "category": "Marketing", "confidence": 0.99, "evidence": ["hubspot script"] },
    { "technology": "Next.js", "category": "JS framework", "confidence": 0.99, "evidence": ["_next path"] },
    { "technology": "Google Tag Manager", "category": "Tag manager", "confidence": 0.99, "evidence": ["gtm.js"] },
    { "technology": "Amazon CloudFront", "category": "CDN / Hosting", "confidence": 0.99, "evidence": ["cloudfront header"] }
  ],
  "technologyCount": 6,
  "byCategory": {
    "Marketing": ["HubSpot"],
    "JS framework": ["Next.js"],
    "Tag manager": ["Google Tag Manager"],
    "Support": ["Intercom"],
    "UI framework": ["Bootstrap"],
    "CDN / Hosting": ["Amazon CloudFront"]
  }
}

Pricing

Websites checked	Cost
100	$0.15
1,000	$1.50
10,000	$15.00

One result per website checked, plus $0.00005 per run start. Apify's free plan includes monthly platform credit you can use to try it, and free-plan users get the same features.

Use it with the API, Make, Zapier or Google Sheets

curl -X POST "https://api.apify.com/v2/acts/autoloom~website-technology-detector/run-sync-get-dataset-items?token=YOUR_API_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"startUrls":[{"url":"https://apify.com"}],"samplePages":true}'

Send results to Google Sheets, Make, Zapier or n8n through Apify's integrations, or schedule a monthly run to spot when a competitor or lead changes platform.

FAQ

How is this different from BuiltWith or Wappalyzer? It covers a focused set of 47 common technologies rather than thousands, has no subscription, and shows the evidence for each match. Use it when you need the main stack for a list of sites at a low per-site price.

Does it render JavaScript? No. It reads HTML and response headers. Most tools leave clear traces there (script paths, headers, generator tags), but a tool loaded only after user interaction may be missed.

What does confidence mean? How strong the evidence is, from 0 to 1. Several independent signals push it towards 0.99. Use Minimum confidence to filter.

What about sites that block bots? You still get a row with the status code, so you can see which sites could not be read.

Is it legal? It reads publicly available pages and headers, the same way a browser does. Respect each site's terms.

Related tools from autoloom

• Website Contact & Email Extractor: emails, phones and social profiles for the same list
• HTTP Security Headers Checker: grades each site's security headers
• Redirect Tracer: follows the full redirect chain

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