Tech Stack Detector (Website Technology Lookup)

Tech Stack Detector: What Is Any Website Built With?

Find out which technologies any website uses, in bulk and at a fraction of the usual price. Detects 3,600+ technologies: CMS, ecommerce platforms, analytics, tag managers, marketing automation, CRM, payments, live chat, A/B testing, CDN, hosting, frameworks and more, with versions where visible.

Quick start

1. Press Try for free. The form opens with a working example (apify.com, stripe.com and more).
2. Replace it with your own domains or URLs.
3. Press Start. Results appear as they are found; download them as Excel, CSV or JSON, or use the API.

A result looks like this (some columns):

domain	technologyCount	emailProvider
acme.com	3	Google Workspace

It also reads public DNS records to show what most tech lookups miss: the company's email provider (Google Workspace, Microsoft 365...), email sending tools (HubSpot, Mailchimp, SendGrid, Salesforce...) and business tools verified on the domain (Atlassian, Stripe, Zoom, Slack, OpenAI and more).

Ideal for sales prospecting (find every Shopify store or HubSpot customer in a list), lead scoring, competitor research, market sizing and AI agents.

Why this tool?

• 💸 Low price, pay per website. Failed and blocked websites cost only a tiny flat fee ($0.0015 each).
• ⚡ Fast. No browser needed, so large lists finish in minutes.
• 📬 DNS signals included. Email provider and verified business tools, not just what's on the page.
• 🧹 Easy input. Domains, URLs or email addresses; duplicates removed.
• 🤖 Works with AI agents through the Apify MCP server, and with Make, n8n and Zapier.

Input example

{ "domains": ["shopify.com", "notion.so", "bbc.co.uk"], "includeDnsSignals": true }

Output example (shortened)

{
  "domain": "acme.com",
  "technologyCount": 3,
  "technologies": [
    { "name": "WordPress", "version": "6.4.2", "categories": ["CMS", "Blogs"], "confidence": 100, "website": "https://wordpress.org" },
    { "name": "Google Analytics", "version": null, "categories": ["Analytics"], "confidence": 100, "website": "http://google.com/analytics" },
    { "name": "Stripe", "version": null, "categories": ["Payment processors"], "confidence": 100, "website": "http://stripe.com" }
  ],
  "technologiesByCategory": { "CMS": ["WordPress"], "Analytics": ["Google Analytics"], "Payment processors": ["Stripe"] },
  "emailProvider": "Google Workspace",
  "emailSendingServices": ["HubSpot"],
  "verifiedServices": ["Atlassian", "Google Search Console"]
}

Need company names, logos, social profiles and contacts as well? Try our Website Intelligence tool.

Pricing

Pay per website scanned. See the Pricing tab for your plan's rate. Websites that fail or block us cost a flat $0.0015 each ($1.50 per 1,000), because they still use server time. Set Maximum cost per run to cap your spend.

Event	When it is charged	Price per 1,000 (Free / Bronze / Silver / Gold plan)
Website scanned	Each website scanned and returned.	$5 / $4 / $3.50 / $3
Website failed	A website that could not be reached or blocked us (it still uses server time).	$1.50 on every plan

Need more speed? Give the run more memory: it scans 4 websites at once per GB. Residential proxies are not supported.

Notes

Detection uses the page's HTML, headers, scripts, cookies, robots.txt, TLS certificate and DNS records, without a browser. Technologies that only load after JavaScript runs may be missed. Fingerprints are based on the MIT-licensed Wappalyzer 6.10.54 release, extended with our own.

Feedback

Missing a technology? Open an issue on the Issues tab with the domain and the technology, and we'll add it.

Use with AI agents (MCP)

Connect this tool to Claude, Cursor, VS Code or any other MCP client through the Apify MCP server. To load only this tool, use this server URL:

https://mcp.apify.com?tools=pagecraft/tech-stack-detector

Then ask, for example: "Find out which ecommerce platform, analytics and payment tools these 50 websites use". The agent gets back the technologies found on each website, grouped by category. Each call is charged per event at the prices in Pricing above. Agents without an Apify account can also pay per run through Apify's agentic payments.

Workflows with other Pagecraft tools

Pagecraft tools are built to work together. Ideas that use this one:

Build a B2B lead list. From a list of company websites to contacts and company facts.

1. Website Contact Extractor: Paste the company websites to get their emails, phone numbers and social profiles.
2. Company Data Enrichment from Domain: Add company details for the same domains: name, description, location and links.
3. This tool: See which tools each company runs (CMS, analytics, ecommerce), to tailor your pitch.

Research a competitor. See how a competitor markets, sells and has changed over time.

1. Google Ads Transparency Scraper: The ads they run on Google, with formats and dates.
2. Shopify Store Products Scraper: Their product catalogue, prices and stock, if they sell on Shopify.
3. This tool: The technology behind their website.
4. Wayback Machine Scraper: How their website has changed, from archived copies.
5. Logo & Brand Colours Extractor: Their logo, brand colours and fonts.

More Pagecraft tools

• Shopify Store Products Scraper: every product, price and variant from any Shopify store this tool finds.
• Company Data Enrichment from Domain (Contacts, Tech Stack): logo, contacts and tech stack for a list of company websites.
• Logo & Brand Colours Extractor (Favicon, Fonts, Brand Kit): any company's logo and brand colours from its domain.
• WHOIS Lookup (Bulk Domain Age, Expiry & Registrar): domain age, expiry date and registrar in bulk.