# Tech Stack Detector | $3/1K | BuiltWith Alternative (`veedel_digital/tech-stack`) Actor

Find out which CMS, shop system, analytics, consent banner, CDN, server and 150+ other technologies any website uses. Bulk lookup for lead lists and agencies, BuiltWith and Wappalyzer alternative. No proxies, pay per website.

- **URL**: https://apify.com/veedel_digital/tech-stack.md
- **Developed by:** [Tim Tonat](https://apify.com/veedel_digital) (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 $3.00 / 1,000 websites

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

### What does Website Technology Detector do?

This Actor **finds out which technologies a website is built with**. Give it a list of domains and get **one row per website** with the detected:

- **CMS and website builder**: WordPress, TYPO3, Joomla, Drupal, Contao, Wix, Squarespace, Webflow, Jimdo, IONOS MyWebsite, Ghost, HubSpot CMS and more
- **Shop system**: Shopify, WooCommerce, Shopware, Magento, PrestaShop, JTL-Shop, Gambio, OXID, BigCommerce, Plentymarkets and more
- **Analytics and advertising**: Google Analytics 4, Google Tag Manager, Matomo, Plausible, etracker, Hotjar, Microsoft Clarity, Meta Pixel, LinkedIn Insight Tag, TikTok Pixel, Google Ads
- **Cookie consent tools**: Cookiebot, Usercentrics, OneTrust, Borlabs Cookie, Complianz, CookieYes, Real Cookie Banner, consentmanager, CCM19
- **CDN, hosting and web server**: Cloudflare, Fastly, Akamai, CloudFront, Vercel, Netlify, nginx, Apache, LiteSpeed, IIS
- **Frameworks, page builders, chat, CRM, newsletter, payment, fonts, maps, captchas** and more

**150+ technologies** in total, with **version numbers** where the website reveals them and the **evidence** for every detection. No proxies and no browser, so runs are fast and cheap. A lightweight alternative to BuiltWith and Wappalyzer lookups.

### Why use this tech stack checker?

- **Sales and lead generation**: filter a lead list by CMS or shop system, e.g. find all Shopware or old Joomla shops for your offer
- **Web agencies**: spot websites on outdated systems or without a consent tool, and prepare relaunch pitches
- **Market research**: measure how common a technology is in your industry or region
- **Competitor analysis**: see which analytics, ad pixels and marketing tools competitors use
- **Bulk lookups**: hundreds of domains in one run, export to CSV or Excel
- **Pay per website**: websites that can't be loaded are free

### What data does it return?

| Field | Description |
|---|---|
| `url` | Website as entered |
| `finalUrl` | Loaded URL after redirects |
| `cms` | CMS or website builder |
| `ecommerce` | Shop system |
| `analytics` | Analytics, tag manager and ad tools |
| `consentManager` | Cookie consent tool |
| `cdn` | CDN |
| `server` | Web server |
| `technologyCount` | Number of detected technologies |
| `technologies` | All technologies with `name`, `category`, `version` and `evidence` |
| `error` | Reason if the website could not be analyzed |

### How to check which technologies a website uses

1. Click **Try for free**.
2. Paste your domains into **Websites**, one per line (`example.com` is enough).
3. Click **Start**.
4. Open the **Overview** table, or download everything as JSON, CSV or Excel.

### How much does it cost?

This Actor uses **pay per event**: a fixed price **per analyzed website**, and **platform usage is included**. It costs **$0.003 per website**, so 1,000 websites cost **$3**. The **Pricing** tab always shows the binding price. Websites that return an error or can't be reached are not charged.

### Use it with AI agents (MCP)

This Actor works as a tool for Claude, ChatGPT, Cursor and other AI assistants through the [Apify MCP server](https://docs.apify.com/platform/integrations/mcp). Add this server URL to your MCP client:

```text
https://mcp.apify.com?tools=veedel_digital/tech-stack
```

Then ask in plain language, for example: *"Check which CMS and shop system these 50 websites use and list all Shopify stores."*

The assistant fills in the input, runs the Actor and works with the results. You pay the same price per result as in Apify Console.

### Input

See the **Input** tab for all options.

```json
{
    "urls": ["example.com", "https://shop.example.org"]
}
```

### Output

You can download the dataset in various formats such as JSON, HTML, CSV, or Excel.

```json
{
    "url": "example.com",
    "finalUrl": "https://www.example.com/",
    "statusCode": 200,
    "cms": "WordPress",
    "ecommerce": "WooCommerce",
    "analytics": ["Google Tag Manager", "Meta Pixel"],
    "consentManager": "Borlabs Cookie",
    "cdn": "Cloudflare",
    "server": "nginx",
    "technologyCount": 11,
    "technologies": [
        { "name": "WordPress", "category": "CMS", "version": "6.6.2", "evidence": "meta generator: WordPress 6.6.2" },
        { "name": "Elementor", "category": "Page builder", "version": "3.24.0", "evidence": "meta generator: Elementor 3.24.0" },
        { "name": "Cloudflare", "category": "CDN", "version": null, "evidence": "header cf-ray: 8f1c2a3b4c5d-FRA" }
    ],
    "error": null
}
```

### Related Actors

Combine it with the SEO Site Audit or the PageSpeed Bulk Audit: find the websites on a given CMS, then check their SEO and speed for a data-driven sales pitch.

- [SEO Site Audit & Broken Link Checker](https://apify.com/veedel_digital/seo-audit): crawl a website and find broken links, missing titles and other on-page issues
- [PageSpeed Insights & Core Web Vitals Bulk Audit](https://apify.com/veedel_digital/pagespeed-audit): Lighthouse scores and real-user Core Web Vitals for many URLs
- [Website Lead Enricher](https://apify.com/veedel_digital/lead-enricher): company name, contacts, tech stack and DNS data from a list of domains
- [Website Contact & Imprint Extractor](https://apify.com/veedel_digital/contact-extractor): emails, phone numbers, social profiles and imprint data from websites
- [Domain & Email DNS Checker](https://apify.com/veedel_digital/domain-check): WHOIS/RDAP, MX, SPF, DMARC and DKIM for many domains

All Actors by Veedel Digital: [apify.com/veedel_digital](https://apify.com/veedel_digital)

### FAQ

#### How accurate is the detection?

The Actor analyzes the **start page** of each website: its HTTP headers, cookies, meta tags, scripts, stylesheets and HTML. Every result comes with the evidence it is based on. Technologies that leave no trace in the delivered HTML (for example a backend database or tools that only load after cookie consent or on subpages) can't be detected. Treat the result as a strong indication, not a guarantee.

#### Why is a website missing technologies I know it uses?

Some tools are only loaded after the visitor accepts cookies, only on certain subpages, or are injected by JavaScript in the browser. Websites behind strict bot protection may also return a reduced page.

#### Can I request a technology?

Yes, please open an issue in the **Issues** tab with the technology name and an example website.

#### Something does not work

Please open an issue in the **Issues** tab with the website and the run ID. You can also start the Actor programmatically from the **API** tab.

# Actor input Schema

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

Domains or URLs, one per line (e.g. example.com). Domains without https:// are opened with https://. The start page of each website is analyzed.

## Actor input object example

```json
{
  "urls": [
    "apify.com",
    "wordpress.org"
  ]
}
```

# Actor output Schema

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

Dataset with the detected technologies of every website

# 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",
        "wordpress.org"
    ]
};

// Run the Actor and wait for it to finish
const run = await client.actor("veedel_digital/tech-stack").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",
        "wordpress.org",
    ] }

# Run the Actor and wait for it to finish
run = client.actor("veedel_digital/tech-stack").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",
    "wordpress.org"
  ]
}' |
apify call veedel_digital/tech-stack --silent --output-dataset

```

## MCP server setup

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

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/obcsC70ArHbnIPcUc/builds/TSEXQlWiq0b1YfGAf/openapi.json