Tech Stack Detector (examples)

Detect what a list of websites is built with: CMS, ecommerce, analytics, CDN, web server, frameworks, and 3,600+ other technologies, with versions when they are visible. Wappalyzer-style fingerprints over plain HTTP. No browser, no login.

This repository is examples and docs for the hosted Actor. The Actor source (including vendored fingerprints) is not published here.

Store: apify.com/hillcountrybots/tech-stack-detector
Website: hillcountrybots.com
Actor ID: hillcountrybots/tech-stack-detector

Topics: apify, apify-actor, tech-stack, wappalyzer, cms, builtwith, lead-generation, seo

What it does

• Fetches each homepage and matches public technology fingerprints
• Returns a full technologies list plus convenient fields: cms, ecommerce, analytics, cdn, server, frameworks
• Skips and does not charge for private URLs, robots.txt blocks, unreachable sites, non-HTML responses, login walls, and bot-challenge pages

Useful for lead lists, competitive research, and "what is this client's site built on" checks.

Pricing

$0.50 per 1,000 analyzed sites ($0.0005 per site-analyzed event). Checked on the live Store on November 11, 2026. Failures are free. A 2,000-site lead list costs at most $1.00.

Example input

{
  "urls": ["wordpress.org", "https://www.allbirds.com/"]
}

Example output

A shortened row (see examples/output.json):

{
  "input": "wordpress.org",
  "url": "https://wordpress.org/",
  "cms": "WordPress",
  "server": "Nginx",
  "technologyCount": 12,
  "status": "ok"
}

How to run it

Apify UI

Open the Store page, paste a list of sites, and click Start.

API (curl)

export APIFY_TOKEN=your_token   # never commit this

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

Scripts: examples/run_curl.sh, examples/run_python.py, examples/run_js.mjs.

Python

pip install apify-client
export APIFY_TOKEN=your_token
python examples/run_python.py

JavaScript

npm install apify-client
export APIFY_TOKEN=your_token
node examples/run_js.mjs

MCP

Add https://mcp.apify.com?tools=hillcountrybots/tech-stack-detector as an MCP server.

n8n, Make, or Zapier

Use Apify's official integrations and pick this Actor, with your own Apify token.

Credits

Detection uses public technology fingerprints in the Wappalyzer tradition, plus our own patterns. The hosted tool's source and the vendored dataset are not in this repo. See the Store README for the credit line that ships with the Actor.

More tools

• SEO Audit Tool
• Bulk PageSpeed Insights Test
• Sitemap URL Extractor
• Bulk Domain Availability Checker
• Site Health Kit for Google Sheets

Support

Hill Country Bots, Bee Cave, Texas. hillcountrybots@proton.me

If a run fails, open an issue on the Actor's Issues tab. We reply within 2 business days (US Central).

License

The examples and documentation in this repository are MIT. The hosted Actor is a paid product on Apify and its source is not included here.