🔎 Website Tech Stack Detector – CMS & Framework Lookup

Find out what any website is built with — in bulk. Drop in a list of domains and get back the CMS, ecommerce platform, JavaScript framework, analytics, marketing/CRM tools, payment widgets, CDN, hosting, and web server behind each one.

A fast, BuiltWith-style technology lookup and CMS detector for competitive intelligence, lead generation, and market research. Domains in → tech stack out, as clean JSON, CSV, or Excel.

Need to detect a website's tech stack, check what CMS a site uses, find all Shopify stores, or build a list of WordPress sites running WooCommerce for prospecting? This Actor does it at scale, with no browser and no monthly subscription.

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✅ What it detects

Category	Examples
CMS	WordPress, Shopify, Wix, Squarespace, Webflow, Framer, Drupal, Joomla, Ghost, HubSpot CMS, Contentful, Sitecore
Ecommerce	Shopify, WooCommerce, Magento, BigCommerce, PrestaShop, Salesforce Commerce, Ecwid
JS frameworks	Next.js, Nuxt, React, Vue, Angular, Svelte, Gatsby, Astro, jQuery
Analytics	Google Analytics, GTM, Meta Pixel, Hotjar, Segment, Mixpanel, Plausible, Matomo, Amplitude
Marketing / CRM	HubSpot, Mailchimp, Klaviyo, Intercom, Drift, Zendesk, Tawk.to, Crisp
Payments	Stripe, PayPal, Klarna
CDN / hosting	Cloudflare, Fastly, Akamai, Vercel, Netlify, CloudFront, GitHub Pages, S3
Web server	Nginx, Apache, IIS, LiteSpeed, OpenResty, Caddy

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🎯 Best for

• B2B prospecting — build target lists by technology: "all Shopify + Klaviyo stores", "Magento merchants", "sites on HubSpot", "WooCommerce shops"
• Competitive intelligence — see what stack competitors and their customers run
• Agencies & SaaS sales — find sites using (or missing) a specific tool you replace, integrate with, or migrate from
• Market research — measure technology adoption across an industry, niche, or country
• Lead enrichment — append tech-stack signals to your CRM records for sharper targeting and messaging
• Recruiting & sourcing — find companies running the stack you hire for

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⚡ Why this detector

• Bulk-first — hundreds of domains per run, parallelized for speed
• Header + cookie + HTML fingerprinting — reads response headers, set-cookies, and page markup, so it catches signals single-source scrapers miss
• Precision-tuned — detection patterns are kept specific to avoid the false positives that plague naive keyword matching (this is a paid tool: accuracy over guesses)
• Grouped output — technologies organized by category plus a flat list, so you can filter prospect lists in one click
• HTTP-only & cheap — no browser needed, low cost per result
• Optional proxy — datacenter proxy is enough for most sites

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🛠 How to use

1. Add domains to Domains (shopify.com, https://www.bbc.com — with or without https://). You can also pipe a big list via Start URLs.
2. Adjust Concurrency for speed.
3. Run and export to CSV / Excel / JSON, or fetch via the Apify API.
4. Filter the dataset by cms, ecommerce, or any value in technologies to build a laser-targeted prospect list.

Example input

{ "domains": ["shopify.com", "techcrunch.com", "gatsbyjs.com"], "concurrency": 10 }

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📤 Output

{
  "domain": "techcrunch.com",
  "statusCode": 200,
  "title": "TechCrunch | Startup and Technology News",
  "cms": "WordPress",
  "ecommerce": null,
  "server": "Nginx",
  "generator": "WordPress 6.x",
  "technologies": ["WordPress", "HubSpot", "Google Tag Manager", "Cloudflare"],
  "byCategory": {
    "CMS": ["WordPress"],
    "Analytics": ["Google Tag Manager"],
    "Marketing": ["HubSpot"],
    "CDN/Hosting": ["Cloudflare"]
  },
  "technologyCount": 4
}

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💡 Example prospecting recipes

• Find Shopify stores to pitch an app/agency → run your domain list, filter ecommerce = Shopify.
• Target WordPress sites for a plugin/migration offer → filter cms = WordPress.
• Sell a Klaviyo/HubSpot competitor → filter technologies contains Klaviyo or HubSpot.
• Find sites with NO analytics → filter rows where byCategory.Analytics is empty (an easy upsell).
• Map a competitor's customer base → scrape their "customers" page for domains, then detect each one's stack.

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🆚 How this compares

vs. BuiltWith / Wappalyzer — Same idea (identify a site's technologies), but built for bulk runs on Apify with clean CSV/Excel/JSON export and full API access, at pay-per-result pricing — no monthly seat fees or per-lookup credits.

vs. a browser-based scraper — It fingerprints the served HTML, headers, and cookies, which exposes the vast majority of stacks (CMS, ecommerce, frameworks, analytics, hosting) without paying for a full headless browser per page.

vs. manual checks — Inspecting source code site-by-site doesn't scale. This Actor processes large lists and outputs a structured, filterable dataset.

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❓ FAQ

Does it render JavaScript? It fingerprints the served HTML, headers, and cookies, which reveals the vast majority of stacks without the cost of a full browser. For most prospecting and intelligence use cases this is both faster and cheaper.

How accurate is it? Detection patterns are deliberately specific to minimize false positives. When a signal is ambiguous, the Actor prefers to omit it rather than guess.

Can I feed it a big domain list? Yes — paste hundreds of domains, or pipe them from another Actor or an uploaded file via startUrls.

Can I run it on a schedule? Yes — schedule periodic runs to track when target sites adopt or drop technologies (a strong buying/selling signal).

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🔁 Pairs well with

• Website Contact Scraper → add emails, phones & socials to each domain you detect
• Bulk Email Verifier → clean those contacts before outreach
• Any directory/marketplace scraper → produce the domain list, then enrich it with tech signals

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Keywords

website tech stack detector, what technology a website uses, cms detector, detect website cms, builtwith alternative, wappalyzer alternative, technology lookup, find shopify stores, wordpress site finder, woocommerce store list, ecommerce platform detector, framework detector, web server lookup, tech stack lead generation, competitive intelligence scraper, website technology checker, bulk cms detection, find sites using hubspot, klaviyo store finder.

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Changelog

• 2026-06-01 — Maintenance & reliability pass: pulled the latest source and rebuilt the Actor on the current base image; build verified.

Last reviewed: 2026-06-01.