Tech Stack Detector (Cheap Wappalyzer & BuiltWith Alternative)

Find out what any website is built with, in bulk: CMS, ecommerce platform, JavaScript framework, analytics, ad pixels, live chat, payments, cookie consent, CDN, hosting and web server. 135+ technologies detected from the public homepage and HTTP headers.

• Bulk: paste hundreds of domains and get one clean row per site.
• Cheap: pay a small fee per website analyzed, a fraction of what other tech-lookup tools charge.
• Evidence and confidence: every detection says how it was found (header, meta tag, cookie, script, HTML) and gives a version when the site exposes it.
• Fair: sites that block automated requests or don't load come back as free rows that explain why.

Who is it for?

• Sales and lead gen: find every store on Shopify, every site using HubSpot, or prospects that use a competitor's tool.
• Agencies: audit a client's or prospect's stack before a pitch.
• Market research: measure the adoption of a technology across a list of sites (see the TECH_SUMMARY record).
• AI agents: one call returns a site's stack as JSON.

What it detects (examples)

Category	Examples
CMS & builders	WordPress, Drupal, Webflow, Wix, Squarespace, Framer, Ghost, HubSpot CMS
Ecommerce	Shopify, WooCommerce, Magento, BigCommerce, Salesforce Commerce Cloud
Frameworks	React, Next.js, Vue, Nuxt, Angular, Svelte, Gatsby, Astro
Analytics & tags	Google Analytics, Google Tag Manager, Segment, Hotjar, Mixpanel, PostHog
Advertising	Meta Pixel, Google Ads, LinkedIn Insight, TikTok Pixel
Marketing & chat	HubSpot, Klaviyo, Mailchimp, Intercom, Drift, Zendesk
Payments	Stripe, PayPal, Klarna, Afterpay
Infrastructure	Cloudflare, CloudFront, Fastly, Vercel, Netlify, Nginx, Apache

How to use it

1. Paste your websites (domains or URLs), one per line. Hundreds at a time is fine.
2. Click Start.
3. Filter the table by technology (e.g. every site on Shopify, every site using HubSpot) and export to Excel or CSV. The TECH_SUMMARY record shows how many of your sites use each technology.

Input example

{ "domains": ["apify.com", "wordpress.org", "vercel.com"] }

Output example

{
  "domain": "apify.com",
  "finalUrl": "https://apify.com/",
  "statusCode": 200,
  "title": "Apify: Full-stack web scraping and data extraction platform",
  "technologyCount": 5,
  "technologyNames": ["Amazon CloudFront", "Next.js", "Intercom", "HubSpot", "Google Tag Manager"],
  "technologies": [
    { "name": "Next.js", "category": "JavaScript framework", "version": null, "confidence": "high", "evidence": ["html", "header:x-powered-by"] }
  ],
  "byCategory": { "JavaScript framework": ["Next.js"], "Live chat": ["Intercom"] },
  "server": "AmazonS3",
  "poweredBy": "Next.js"
}

How much does it cost?

Pay-per-event: a small fee per website analyzed plus a tiny per-run start fee. For example, 1,000 websites cost about $3, far less than tech-lookup subscriptions. Blocked or failed websites are free. Set Maximum cost per run to cap spending.

Limits

• It reads the homepage and its headers. Technologies only loaded on other pages, or injected later by JavaScript, may be missed.
• Some sites with strict bot protection (403/429) only show what their headers reveal. Those rows are free.

Use it through the API, integrations or AI agents

Run it from the Apify API, on a schedule, or connect it to Make, Zapier, n8n or Google Sheets. AI agents can find and call it through the Apify MCP server. Output is clean JSON with the same fields on every run.

FAQ

Is it legal? It only reads each website's public homepage and HTTP headers, the same things any browser receives. No personal data is collected.

Can you add a technology? Yes. Open an issue with the name and an example site. We usually reply within 24 hours.

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