# Tech Stack Detector: Wappalyzer Alternative (`celebrated-quadraphonic/tech-stack-detector`) Actor

Detect any website's technology stack over plain HTTP: CMS, JavaScript frameworks, analytics, ecommerce, CDN, hosting, advertising and marketing tools. 100+ technology fingerprints, versions where identifiable, grouped by category. No browser, no proxies, no API key.

- **URL**: https://apify.com/celebrated-quadraphonic/tech-stack-detector.md
- **Developed by:** [XiaoZhi DataTools](https://apify.com/celebrated-quadraphonic) (community)
- **Categories:** Developer tools, Automation, Business
- **Security:** Limited permissions
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

from $5.00 / 1,000 domain 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

## Tech Stack Detector — Wappalyzer Alternative

Detect the technology stack of any website in seconds. Give this Actor a list of domains and get back **structured tech profiles**: CMS, JavaScript frameworks, analytics, ecommerce platforms, CDN, hosting, advertising and marketing tools — grouped by category, with versions where identifiable. Pure HTTP: **no browser, no proxies, no API key**.

### Why this Actor

- **104 technology fingerprints** — a curated detection database covering the tools that actually matter: WordPress, Shopify, React, Next.js, Vue, Google Analytics, HubSpot, Cloudflare, Stripe, and 90+ more.
- **Multiple signal sources** — page HTML, response headers, script URLs, meta tags, and cookies are all analyzed, so detection works even when one signal is hidden.
- **Versions where identifiable** — WordPress 6.4.2, not just "WordPress"; nginx 1.24.0, not just "nginx".
- **Confidence scores** — every detection is labeled `high` (authoritative signal like a meta generator tag or response header) or `medium` (HTML pattern match).
- **20x cheaper than the leading alternative** — $0.005 per domain instead of $0.10.

### Inputs

- **Websites** — domains or URLs, one per line (e.g. `https://example.com`).
- **Include versions** — try to extract technology versions (default on).
- **Request concurrency** — parallel analysis (default 5, max 20).

### Output

One dataset item per domain:

```json
{
  "domain": "example.com",
  "url": "https://example.com/",
  "statusCode": 200,
  "technologies": [
    {"name": "WordPress", "categories": ["CMS"],
     "version": "6.4.2", "confidence": "high"},
    {"name": "Cloudflare", "categories": ["CDN", "Security"],
     "version": "", "confidence": "high"}
  ],
  "technologyNames": ["WordPress", "Cloudflare"],
  "categories": {
    "CMS": ["WordPress 6.4.2"],
    "CDN": ["Cloudflare"]
  },
  "technologyCount": 2
}
```

Export to Excel, CSV, JSON, XML, or HTML straight from the Apify dataset.

### Pricing

- **$0.005 per domain analyzed** (pay-per-event `detection`) — only successfully analyzed domains are billed.
- **$0.00005 Actor start** per run.

### Notes

- Detection is fingerprint-based: sites with heavily obfuscated markup may report fewer technologies.
- Only the homepage is fetched per domain; no crawling, no JavaScript execution.

# Actor input Schema

## `includeVersions` (type: `boolean`):

Try to extract technology versions where identifiable.

## `requestConcurrency` (type: `integer`):

How many websites to analyze in parallel.

## `startUrls` (type: `array`):

Websites to analyze, one per line. Example: https://example.com

## Actor input object example

```json
{
  "includeVersions": true,
  "requestConcurrency": 5,
  "startUrls": [
    "https://www.apify.com"
  ]
}
```

# Actor output Schema

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

No description

# 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 = {
    "startUrls": [
        "https://www.apify.com"
    ]
};

// Run the Actor and wait for it to finish
const run = await client.actor("celebrated-quadraphonic/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 = { "startUrls": ["https://www.apify.com"] }

# Run the Actor and wait for it to finish
run = client.actor("celebrated-quadraphonic/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 '{
  "startUrls": [
    "https://www.apify.com"
  ]
}' |
apify call celebrated-quadraphonic/tech-stack-detector --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,celebrated-quadraphonic/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/9F0NojqIqnVaxHxM4/builds/GGk9ha8kbQEnNZQpU/openapi.json