Tech Stack Detector: Website Technology Lookup & Wappalyzer

Tech stack detector and website technology lookup for any domain: CMS, e-commerce platform, analytics and marketing tools, JavaScript frameworks, CDN, web servers, payment providers and 7,000+ other technologies. Paste a list of domains, get versions and categories for each one in a clean table or JSON. It costs $3 per 1,000 websites, and websites that fail to load are free.

BuiltWith / Wappalyzer alternative

Uses the same open-source webappanalyzer fingerprint database as Wappalyzer (7,628 technologies across 90+ categories, with version numbers where the site exposes them), at a fraction of the price of BuiltWith or a Wappalyzer subscription, with no monthly commitment. Websites that fail to load are never billed.

Use cases

• Find every Shopify / WordPress / HubSpot site in a list: paste your domain list and filter the output by technologies[].name.
• Lead qualification: find every prospect running Shopify, WordPress, HubSpot or a competitor's product.
• Sales prospecting lists: segment thousands of domains by the technology they use.
• Competitor research: see what your competitors' sites run on and which versions they use.
• Market share analysis: measure how widely a technology is adopted across a list of sites.
• Tech and security audits: spot outdated CMS or library versions across a portfolio of sites.

Input

{
  "urls": ["wordpress.org", "shopify.com", "https://apify.com"],
  "maxConcurrency": 10,
  "timeoutSecs": 20,
  "includeJobs": false,
  "maxJobsPerSite": 20
}

Field	What it does	Default
urls	Domains or URLs to analyze. The https:// prefix is optional.	required
maxConcurrency	Websites analyzed in parallel (1 to 50)	10
timeoutSecs	Maximum time to fetch one website (5 to 120 seconds)	20
includeJobs	Add a hiring field with the job board and open jobs found on the site	false
maxJobsPerSite	Jobs listed in the hiring field (0 to 100)	20

Output

One item per website:

{
  "url": "wordpress.org",
  "finalUrl": "https://wordpress.org/",
  "statusCode": 200,
  "technologies": [
    { "name": "WordPress", "version": "6.7", "categories": ["CMS", "Blogs"], "confidence": 100, "website": "https://wordpress.org" },
    { "name": "PHP", "version": null, "categories": ["Programming languages"], "confidence": 100, "website": "http://php.net" },
    { "name": "jQuery", "version": "3.7.1", "categories": ["JavaScript libraries"], "confidence": 100, "website": "https://jquery.com" }
  ],
  "categories": ["Blogs", "CMS", "JavaScript libraries", "Programming languages"],
  "error": null
}

Export it as JSON, CSV or Excel, or read it through the Apify API.

Hiring signals

Set includeJobs to true to see whether each company is hiring. The Actor looks for a Greenhouse, Lever, Ashby or Workday job board in the analyzed page, then in its careers page (one extra request on the same site), and reads the open jobs from the board's public API. Each item gets a hiring field, or hiring: null when no board is found. maxJobsPerSite caps the jobs listed (default 20, up to 100), while openJobs always gives the full count. The whole jobs lookup for a site shares one time budget equal to timeoutSecs. Greenhouse boards do not expose departments in their light listing, so department is null for them. Only job data is returned: no recruiter names, emails or phone numbers. The price per website stays the same, and a failure on the jobs side never fails or changes the price of the technology analysis.

Real output for netlify.com (trimmed to 2 jobs):

"hiring": {
  "platform": "greenhouse",
  "careersUrl": "https://job-boards.greenhouse.io/netlify",
  "openJobs": 5,
  "jobs": [
    { "title": "Customer Success Associate (Denver, CO)", "location": "Remote", "department": null, "url": "https://job-boards.greenhouse.io/netlify/jobs/8806100002", "postedAt": "2026-09-25T19:44:24.000Z" },
    { "title": "Finance Manager (Corporate Finance)", "location": "Remote", "department": null, "url": "https://job-boards.greenhouse.io/netlify/jobs/8823513002", "postedAt": "2026-09-18T23:10:40.000Z" }
  ]
}

Call it from your code (API)

Run it synchronously and get the dataset items back in one request:

curl -X POST "https://api.apify.com/v2/acts/Boubap~tech-stack-detector/run-sync-get-dataset-items?token=<YOUR_APIFY_TOKEN>" \
  -H "Content-Type: application/json" \
  -d '{"urls": ["shopify.com", "wordpress.org"]}'

The response is the JSON array shown in the Output section. Synchronous calls time out after 300 seconds, so for long lists start an asynchronous run and read the dataset when it finishes.

Use with AI agents (MCP)

Add this Actor to an agent through the Apify MCP server by enabling Boubap/tech-stack-detector. The agent reads the input schema, sends a list of domains in urls and receives structured technologies per site. It is a regular Actor run (not a Standby server), billed per website analyzed, with no API key needed for the sites themselves.

Pricing

You pay $0.003 per website analyzed ($3 per 1,000). Websites that time out, block the request or don't exist are returned with an error field and are not charged.

FAQ

Does it render JavaScript? No. It fetches the page over HTTP and matches headers, cookies, HTML, meta tags and script URLs, with no browser involved. This keeps it fast and cheap, but technologies that only appear after JavaScript executes (client-side-rendered widgets, for example) can be missed.

What are the limits? Up to maxConcurrency websites in parallel (default 10, max 50) and timeoutSecs per website (default 20s); the HTML matched is capped at 512 KB per page.

Can I use it from my code, Make, Zapier or an AI agent? Yes. Call it through the Apify API, the Make and Zapier integrations, or the Apify MCP server for AI agents.

Does it collect personal data? No. It only reads public technical signals from websites.

Do I need an API key? No.

Related Actors

Other Actors in the same toolbox, with the same pay-per-result model:

• Career Site Jobs Scraper: Turn a list of companies into their open jobs on Workday, Greenhouse, Lever or Ashby (this Actor also has an includeJobs option for a quick hiring check).
• French Company Search: Enrich French companies with SIRET, NAF code, headcount and revenue, then check their tech stack here.
• EU TED Tenders Scraper: Find public buyers in the EU, then check the technology of their websites.
• Google Trends Explore API: Check the demand for a technology or product with Google Trends before prospecting its users.

License

GPL-3.0. Fingerprints come from webappanalyzer (GPL-3.0).