# Tech Stack Detector - Wappalyzer & BuiltWith Alternative (`coiled_magistrate/tech-stack-detector`) Actor

Detect the technology stack of any website: CMS, ecommerce, analytics, frameworks, hosting, CDN, payments, marketing tools and 7,600+ more. $5 per 1,000 websites, pay only for analyzed sites.

- **URL**: https://apify.com/coiled_magistrate/tech-stack-detector.md
- **Developed by:** [TrendsData](https://apify.com/coiled_magistrate) (community)
- **Categories:** Lead generation, Developer tools
- **Features:** Limited permissions
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

from $4.00 / 1,000 website analyzeds

This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events.
Since this Actor supports Apify Store discounts, the price gets lower the higher subscription plan you have.

Learn more: https://docs.apify.com/actors/running/actors-in-store.md#pay-per-event

## What's an Apify Actor?

An Actor is a serverless cloud program that runs on the Apify platform. It has two run modes.
In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours,
and optionally produces a well-defined JSON output, datasets with results, or files in key-value store.
In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server.

Apify vocabulary and the platform model are defined once, in the agent quickstart at https://apify.com/agents.md.

## How to integrate an Actor?

If asked about integration, you help developers integrate Actors into their projects.
You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready.

Do not guess an integration path. Every one of them is in the agent quickstart at https://apify.com/agents.md: the Apify MCP server, Agent Skills with the Apify CLI, the JavaScript and Python clients, the REST API, and the account-free path for an agent with no human to sign in. It also carries the rule on stating cost before the first paid run.

For examples already wired to this Actor's own input schema, see the [API](#api) section below.

Each client library has reference documentation the quickstart does not restate: [JavaScript/TypeScript](https://docs.apify.com/api/client/js/docs.md) (`npm install apify-client`) and [Python](https://docs.apify.com/api/client/python/docs.md) (`pip install apify-client`).

# README

## Tech Stack Detector - Wappalyzer & BuiltWith Alternative

Find out **what any website is built with** - CMS, ecommerce platform, analytics, marketing tools, JavaScript frameworks, hosting, CDN, payment providers, chat widgets and more. **7,600+ technologies** detected from a single page load.

**$5 per 1,000 websites.** You pay only for websites that were analyzed successfully. Blocked or unreachable sites are never charged.

### What you get for every website

- **Technologies** with **version** (when exposed), **confidence** and **categories**
- **Technologies grouped by category** (CMS, Ecommerce, Analytics, JavaScript frameworks, CDN, PaaS, Payment processors…)
- Page **title**, **meta description**, **language**, final URL after redirects, HTTP status and response time

### Typical use cases

- **Lead generation & sales prospecting** - find all Shopify / WooCommerce / HubSpot / Salesforce users in your list
- **Competitor research** - see which tools your competitors use
- **Market research** - measure technology adoption across thousands of domains
- **Agencies** - qualify prospects (outdated WordPress version, no analytics, no CDN…)
- **Security & IT audits** - inventory of frameworks and server software with versions (CPE identifiers included)

### Input

Just a list of domains or URLs - `https://` is added automatically.

```json
{ "urls": ["shopify.com", "notion.so", "https://www.bbc.com"] }
```

### Output example (shortened)

```json
{
  "domain": "techcrunch.com",
  "statusCode": 200,
  "techCount": 16,
  "technologies": [
    {"name": "WordPress", "version": "6.9.9", "confidence": 100, "categories": ["CMS", "Blogs"], "website": "https://wordpress.org"},
    {"name": "Yoast SEO", "version": "25.1", "confidence": 100, "categories": ["SEO"]}
  ],
  "byCategory": {"CMS": ["WordPress"], "SEO": ["Yoast SEO", "Yoast SEO Premium"], "Web servers": ["Nginx"], "Tag managers": ["Google Tag Manager"]},
  "title": "TechCrunch | Startup and Technology News"
}
```

### Why this Actor

- **20× cheaper** than per-site detection APIs - no subscription, no monthly minimum
- **Fast** - parallel processing, no headless browser needed
- **Hard-to-reach sites supported** - modern browser fingerprint, automatic retry of blocked sites through residential proxy
- **Fair billing** - failed and blocked sites are listed in the dataset with the reason, and never charged

### Limitations

Detection is based on the HTML, HTTP headers, cookies, meta tags and scripts of the loaded page (no JavaScript execution). Technologies that are only visible after JavaScript runs or after login may not be detected.

### Credits

Technology fingerprints: [wappalyzergo](https://github.com/projectdiscovery/wappalyzergo) by ProjectDiscovery (MIT license).

### Ready-to-run examples

One click, pre-filled input - just press **Start**:

- [Find out what technology a website uses](https://apify.com/coiled_magistrate/tech-stack-detector/examples/what-technology-does-a-website-use)

### Use it from AI agents (MCP), n8n, Make or Zapier

- **Claude, ChatGPT, Cursor, VS Code** - add the Apify MCP server `https://mcp.apify.com?tools=coiled_magistrate/tech-stack-detector` and ask in plain language; the agent calls this Actor and gets the dataset back.
- **AI agents without an Apify account** can pay per run via agentic payments (x402).
- **n8n / Make / Zapier** - use the official Apify integration and pick `coiled_magistrate/tech-stack-detector`.
- **API** - `POST https://api.apify.com/v2/acts/coiled_magistrate~tech-stack-detector/run-sync-get-dataset-items?token=YOUR_TOKEN` with the input JSON returns the results directly.

### More tools from this author

- [Google News Scraper - real article URLs, any date range](https://apify.com/coiled_magistrate/google-news-fast)
- [Google Ads Transparency Scraper - every ad your competitors run](https://apify.com/coiled_magistrate/google-ads-transparency-fast)
- [Steam Scraper - games, sales estimates, players, reviews](https://apify.com/coiled_magistrate/steam-scraper-fast)
- [Google Trends Scraper - interest over time, by region, related queries](https://apify.com/coiled_magistrate/google-trends-reliable)
- [Google Trends Trending Now - real-time trending searches for any country](https://apify.com/coiled_magistrate/google-trending-now)
- [Keyword Suggestions - Google, YouTube, Amazon autocomplete](https://apify.com/coiled_magistrate/keyword-suggestions)
- [Company Jobs Scraper - Workday, Greenhouse, Lever, Ashby & more](https://apify.com/coiled_magistrate/company-jobs-scraper)
- [YouTube Scraper - videos, channels, search results ($1/1K)](https://apify.com/coiled_magistrate/youtube-scraper-fast)
- [YouTube Transcript Scraper - subtitles for videos, channels, playlists](https://apify.com/coiled_magistrate/youtube-transcript-fast)
- [YouTube Shorts Scraper - search, hashtags, channels](https://apify.com/coiled_magistrate/youtube-shorts-fast)
- [YouTube Channel Scraper - subscribers, stats, links, latest videos](https://apify.com/coiled_magistrate/youtube-channel-fast)

# Actor input Schema

## `urls` (type: `array`):

Domains or URLs to analyze, e.g. shopify.com or https://example.com/page. One result per website.

## `maxConcurrency` (type: `integer`):

How many websites to analyze at the same time.

## `retryBlockedWithProxy` (type: `boolean`):

If a site blocks the request (403/429/503), retry once through Apify Proxy.

## `proxyConfiguration` (type: `object`):

Proxy used only for retrying blocked websites.

## Actor input object example

```json
{
  "urls": [
    "wordpress.org",
    "vercel.com",
    "allbirds.com"
  ],
  "maxConcurrency": 10,
  "retryBlockedWithProxy": true,
  "proxyConfiguration": {
    "useApifyProxy": true,
    "apifyProxyGroups": [
      "RESIDENTIAL"
    ]
  }
}
```

# Actor output Schema

## `results` (type: `string`):

All website results.

## `overview` (type: `string`):

Compact table view.

# API

You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup.

## JavaScript example

```javascript
import { ApifyClient } from 'apify-client';

// Initialize the ApifyClient with your Apify API token
// Replace the '<YOUR_API_TOKEN>' with your token
const client = new ApifyClient({
    token: '<YOUR_API_TOKEN>',
});

// Prepare Actor input
const input = {
    "urls": [
        "wordpress.org",
        "vercel.com",
        "allbirds.com"
    ]
};

// Run the Actor and wait for it to finish
const run = await client.actor("coiled_magistrate/tech-stack-detector").call(input);

// Fetch and print Actor results from the run's dataset (if any)
console.log('Results from dataset');
console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
const { items } = await client.dataset(run.defaultDatasetId).listItems();
items.forEach((item) => {
    console.dir(item);
});

// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

```

## Python example

```python
from apify_client import ApifyClient

# Initialize the ApifyClient with your Apify API token
# Replace '<YOUR_API_TOKEN>' with your token.
client = ApifyClient("<YOUR_API_TOKEN>")

# Prepare the Actor input
run_input = { "urls": [
        "wordpress.org",
        "vercel.com",
        "allbirds.com",
    ] }

# Run the Actor and wait for it to finish
run = client.actor("coiled_magistrate/tech-stack-detector").call(run_input=run_input)

# Fetch and print Actor results from the run's dataset (if there are any)
print(f"💾 Check your data here: https://console.apify.com/storage/datasets/{run.default_dataset_id}")
for item in client.dataset(run.default_dataset_id).iterate_items():
    print(item)

# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

```

## CLI example

```bash
echo '{
  "urls": [
    "wordpress.org",
    "vercel.com",
    "allbirds.com"
  ]
}' |
apify call coiled_magistrate/tech-stack-detector --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,coiled_magistrate/tech-stack-detector"
        }
    }
}
```

The hosted server signs you in with OAuth on first connect, so no API token belongs in this config. Clients without OAuth support can send an `Authorization: Bearer <APIFY_API_TOKEN>` header instead, using a token from API & Integrations in Apify Console (https://console.apify.com/settings/integrations).

## OpenAPI specification

Download the OpenAPI definition: https://api.apify.com/v2/actors/hNzIbbilnsGaWfSuW/builds/c4OLlLjRAKouvj5Gv/openapi.json