Tech Stack Detector API: Wappalyzer & BuiltWith Alternative

Paste a list of websites and find out what each one is built with: CMS, ecommerce platform, JavaScript framework, analytics, ad pixels, marketing automation, CRM, live chat, payments, cookie banner, hosting, CDN and even the email provider (Google Workspace, Microsoft 365...).

300+ technologies in 35+ categories, one clean row per website, in bulk. No browser extension, no API key, no subscription: pay per website.

Why this one?

• Lead generation ready. Find every Shopify store using Klaviyo, every WordPress site without a live chat, every company on HubSpot. Use Only websites using and you pay only for the matches.
• Email provider included. MX and SPF records reveal Google Workspace, Microsoft 365, Zoho, SendGrid, Mailchimp, Salesforce... something browser extensions can't see.
• Columns you can filter. cms, ecommerce, analytics, advertising, marketing, liveChat, payments, hosting and emailHosting, ready for Excel, Google Sheets or your CRM.
• No false positives from text. Technologies are detected from the code a site loads (scripts, headers, cookies, markup), not from words in its articles.
• Fast and cheap. Thousands of websites per run, a fraction of what BuiltWith or Wappalyzer subscriptions cost.

Use cases

• Sales prospecting: build lists of companies using (or not using) a technology, e.g. Shopify stores without reviews app, sites using a competitor's tool.
• Competitor research: see which analytics, ads, CRM and payment tools competitors rely on.
• Agencies: qualify leads by CMS and stack before a call; audit clients' tracking pixels and cookie banners.
• Market research: measure the market share of CMSs, ecommerce platforms or chat tools in any list of sites.
• Lead enrichment: add stack data to your CRM accounts, then get their emails with our Email & Contact Scraper.

Input

Field	What it does
Websites	Websites or domains, one per line. Thousands at once are fine.
Only websites using	Optional. Keep only websites using any of these technologies or categories (Shopify, Klaviyo, Live chat & support...). The rest are free.
Detect email provider	Read MX and SPF records for email hosting and email services. On by default.

{
  "websites": ["allbirds.com", "gymshark.com", "techcrunch.com"],
  "onlyWithTechnologies": ["Shopify"],
  "checkDns": true
}

Output

One row per website:

{
  "website": "https://allbirds.com",
  "domain": "allbirds.com",
  "status": "ok",
  "finalUrl": "https://www.allbirds.com/",
  "title": "Allbirds: Sustainable Shoes & Clothing",
  "description": "...",
  "language": "en",
  "technologyCount": 8,
  "technologyNames": "Shopify, Swiper, Google Tag Manager, Microsoft Clarity, Attentive, Cloudflare, OneTrust, Microsoft 365",
  "cms": null,
  "ecommerce": "Shopify",
  "frameworks": [],
  "analytics": ["Google Tag Manager", "Microsoft Clarity"],
  "advertising": [],
  "marketing": ["Attentive"],
  "liveChat": [],
  "payments": [],
  "hosting": ["Cloudflare"],
  "emailHosting": "Microsoft 365",
  "emailDelivery": [],
  "categories": {"Ecommerce": ["Shopify"], "Cookie consent": ["OneTrust"], "...": []},
  "technologies": [
    {"name": "Shopify", "category": "Ecommerce", "version": null},
    {"name": "Microsoft 365", "category": "Email hosting", "version": null}
  ],
  "scrapedAt": "2026-10-25T12:00:00Z"
}

version is filled when the site reveals it (for example WordPress 6.6 or nginx 1.25).

What it detects

CMS and website builders (WordPress, Drupal, Wix, Squarespace, Webflow, Framer, HubSpot CMS...), ecommerce (Shopify, WooCommerce, Magento, PrestaShop, BigCommerce, Salesforce Commerce Cloud, VTEX...), JavaScript frameworks (Next.js, Nuxt, React, Vue, Angular, Astro, SvelteKit...), analytics and tag managers (Google Analytics, GTM, Adobe, Matomo, Mixpanel, Amplitude, Segment, PostHog...), session replay (Hotjar, Clarity, FullStory...), ad pixels (Meta, Google Ads, LinkedIn, TikTok, X, Pinterest, Bing, Reddit, Criteo...), marketing automation and CRM (HubSpot, Marketo, Pardot, Klaviyo, Mailchimp, ActiveCampaign, Salesforce, ZoomInfo, 6sense...), live chat (Intercom, Drift, Zendesk, Tawk.to, Crisp, Tidio, Gorgias...), payments (Stripe, PayPal, Klarna, Afterpay, Adyen, Redsys...), cookie consent (OneTrust, Cookiebot, Didomi...), reviews (Trustpilot, Yotpo, Judge.me...), search (Algolia, Doofinder, Klevu...), A/B testing, error monitoring, hosting and CDN (Cloudflare, Fastly, Akamai, Vercel, Netlify, AWS...), web servers, back-end languages, WordPress plugins and email providers.

Good to know

• Only the homepage is analyzed, which is where sites load their site-wide tools.
• Sites that block bots may be unreachable; they're listed in the FAILED_WEBSITES record and not charged.
• Tools that load only after a login or a click may not be visible from the homepage.

Integrations

Send results to Google Sheets, HubSpot, Pipedrive, Airtable, Zapier, Make, n8n or your own API with Apify integrations and webhooks.

How to use it

1. Click Try for free (or Start) at the top of this page.
2. Fill in the input, or keep the example to see it working in seconds.
3. Click Start and wait for the run to finish.
4. Download the results as Excel, CSV, JSON or HTML, or get them through the Apify API.

How much does it cost?

$0.0015 per website analyzed ($1.50 per 1,000). No start fee, no monthly fee, and you only pay for the results saved to your dataset.

Example	Cost
Stack of 100 competitor websites	about $0.15
Qualify a 10,000-lead list	about $15.00

Apify's free plan includes monthly credit, so you can try it for free.

FAQ

Is it a Wappalyzer or BuiltWith alternative?

Yes. It detects 300+ technologies from the code each website loads, in bulk, without a browser extension or subscription.

Can I find only websites that use a specific technology?

Yes. Fill in "Only websites using" (for example Shopify or Klaviyo) and you only pay for the websites that match.

How does it find the email provider?

From the domain's public MX and SPF records: Google Workspace, Microsoft 365, Zoho, SendGrid, Mailchimp, Salesforce and more.

What if a technology is missing?

Open an issue with the website and it will be added. Technologies that load only after login may not be visible.

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Support

Missing a technology? Open an issue on the Issues tab with the website and it will be added quickly.

If this Actor saves you time, a quick ⭐ review helps a lot and keeps it maintained. Thank you!