# Website Technology Stack Detector (`proper_ecosystem_cie/tech-stack-detector`) Actor

Find out what websites are built with: CMS, ecommerce platform, JavaScript framework, analytics, advertising pixels, CDN, hosting, live chat, payments and more (95+ technologies) from HTML and headers.

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

## Pricing

$8.00 / 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.

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

## Website Technology Stack Detector

Detect the **technology stack** behind any list of websites: CMS, ecommerce platform, frameworks, analytics and ad pixels, CDN and hosting, live chat, payments, cookie consent, and more. A lightweight BuiltWith or Wappalyzer alternative you can run in bulk from the API.

### Features

- 95+ technologies across 25+ categories, each with the evidence it was found by (HTML, script, header, cookie, generator tag)
- CMS: WordPress, Shopify, Webflow, Wix, Squarespace, Drupal, Ghost, Framer...
- Frameworks: Next.js, Nuxt, React, Vue, Angular, Svelte, Astro...
- Marketing: Google Analytics, GTM, Meta Pixel, HubSpot, Klaviyo, Hotjar, Intercom...
- Infrastructure: Cloudflare, Vercel, Netlify, CloudFront, Nginx...
- One fast HTTP request per site, no browser; honors robots.txt

### Input

| Field | Description |
|---|---|
| `urls` | Domains or full URLs, one per line. |
| `concurrency` | Items processed in parallel. |
| `maxItems` | Stop after this many unique inputs. |

### Output (illustrative example)

```json
{
 "url": "https://www.example.com",
 "technologyNames": [
  "WordPress",
  "WooCommerce",
  "Cloudflare",
  "Google Tag Manager"
 ],
 "byCategory": {
  "CMS": [
   "WordPress"
  ],
  "Ecommerce": [
   "WooCommerce"
  ],
  "CDN": [
   "Cloudflare"
  ],
  "Tag manager": [
   "Google Tag Manager"
  ]
 }
}
```

### Pricing

Pay per event: **website analyzed**. Rows that fail with an `error` are free. Set a maximum charge per run to cap spend.

### Use cases

- Lead generation: find Shopify stores or WordPress sites in a list
- Sales prospecting by technology used
- Competitor and market research
- Agency audits of client stacks

Works with the Apify API, schedules, webhooks, Make, Zapier, n8n, and AI agents via MCP.

# Actor input Schema

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

Domains or full URLs, one per line.

## `concurrency` (type: `integer`):

Items processed in parallel.

## `maxItems` (type: `integer`):

Stop after this many unique inputs.

## Actor input object example

```json
{
  "urls": [
    "apify.com",
    "shopify.com"
  ],
  "concurrency": 10,
  "maxItems": 20000
}
```

# Actor output Schema

## `dataset` (type: `string`):

Dataset with one row per input item

## `runStats` (type: `string`):

Summary counts for the run

# 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": [
        "apify.com",
        "shopify.com"
    ]
};

// Run the Actor and wait for it to finish
const run = await client.actor("proper_ecosystem_cie/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": [
        "apify.com",
        "shopify.com",
    ] }

# Run the Actor and wait for it to finish
run = client.actor("proper_ecosystem_cie/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": [
    "apify.com",
    "shopify.com"
  ]
}' |
apify call proper_ecosystem_cie/tech-stack-detector --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,proper_ecosystem_cie/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/lNubopyjiKxykdJPA/builds/3mrT40GHBeWZlwwrS/openapi.json