Website Technology Checker – Tech Stack & CMS Lookup

A BuiltWith and Wappalyzer alternative.

Find out what any website is built with: CMS, e-commerce platform, analytics, ad pixels, marketing automation, live chat, payments, front-end framework, hosting, CDN and more. Paste a list of domains; get one row per site with every technology found, grouped into columns by category, ready for a spreadsheet or a CRM. Built for SaaS sales and lead qualification ("which shops run Shopify and Klaviyo?"), agencies, competitor research, investors and AI agents that need a tech stack lookup as JSON. No BuiltWith subscription, no browser extension.

What you get

• One row per website: cms, ecommerce, analytics, advertising, marketing, chat, payments, frameworks, hosting, servers, cdn, consent, reviews, fonts, video, security, monitoring, testing, search – each a comma-separated list, empty when nothing in that category was found.
• technologies: the same as a list of {name, category, version}; the version is filled in when the site states it (e.g. WordPress 6.4.2).
• technology_count, page_title, final_url (after redirects) and source: page (read live) or database.
• Over 160 technologies, among them Shopify, WooCommerce, Magento, BigCommerce, WordPress, Webflow, Wix, Squarespace, HubSpot, Klaviyo, Mailchimp, Google Analytics and Tag Manager, Meta Pixel, TikTok Pixel, LinkedIn Insight Tag, Google Ads, Intercom, Zendesk, Stripe, PayPal, Klarna, Next.js, React, Vue, Cloudflare, Vercel, AWS and OneTrust.

Example output

{
  "query": "apify.com",
  "domain": "apify.com",
  "final_url": "https://apify.com/",
  "status_code": 200,
  "source": "page",
  "technology_count": 8,
  "cms": null,
  "ecommerce": null,
  "analytics": "Google Tag Manager",
  "marketing": "HubSpot",
  "chat": "Intercom",
  "frameworks": "Next.js, Bootstrap",
  "hosting": "Amazon Web Services",
  "cdn": "Amazon CloudFront",
  "security": "HSTS",
  "technologies": [{ "name": "Google Tag Manager", "category": "analytics", "version": null }, "..."]
}

Input

Field	What it does
domains	One website per line: a domain (shopify.com) or any link on the site. Up to 5,000 per run.
useDatabase	Sites that refuse automated visits are looked up in a licensed technology database instead (default on, paid Apify plan). Off: they get a free error row.

Pricing

Pay per event, no subscription:

• $0.002 per website checked ($2 per 1,000).
• $0.02 per technology database lookup, only for sites that answered but refused the live visit (a block or bot challenge). The database bills every lookup, also when it has no data for the site, so that lookup is charged too (the error row says so). Turn it off with useDatabase: false.
• $0.001 per run start.
• Sites that cannot be reached, do not exist, time out or have a broken certificate are free; so are sites that refuse the visit when the database is off.

Example: 1,000 websites where 50 refuse the visit cost $1.90 + $1.00 for the 50 database lookups + $0.001. Cap the cost of a run with the maximum charge setting; no database lookup is made that the budget cannot pay for.

Good to know

• Each site's home page is read once, like a visitor would, with an honest bot name, within 30 seconds. Nothing is bypassed: a site that blocks bots or shows a challenge page is not read. www.x.com and x.com count as one site. Addresses inside private networks are never visited.
• Detection uses what the home page reveals: its scripts, styles, meta tags, response headers and cookie names. Tools that only load on other pages, after a click or after cookie consent can be missed; so can back-office software that leaves no trace on the page.
• The database is an earlier crawl, so it can be a few weeks old and lists fewer tools than a live check; rows from it have source: database.

More tools from Rowfeed

• Subdomain Finder & Scanner – every subdomain of a domain from certificate logs and passive DNS, with a live check.
• Shopify Store List – the other direction: every website that uses a given technology, as a lead list.
• Website Traffic Checker – estimated traffic of any website.
• DA PA Checker – domain authority and spam score in bulk.
• SEO Audit Tool – page-by-page SEO checks for any website.

Not affiliated with BuiltWith or Wappalyzer.