# Website Technology Detector — Tech Stack Checker, $9/1k Sites (`leadharbor/website-tech-stack-detector`) Actor

Detect CMS, frameworks, analytics & 100+ technologies on any website. $0.009 per site, charged only on successful scans. No browser, fast.

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

## Pricing

from $9.00 / 1,000 website scanneds

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 Tech Stack Detector & Checker (Wappalyzer Alternative)

Give it website URLs. Each one comes back with the **technologies it runs** — CMS, e-commerce platform, frameworks, analytics, ad pixels, chat widgets, payment processors, hosting and more — with the **category**, the **version where visible** and the **evidence** for every match. Built for lead qualification (filter prospects by stack), competitor research and sales-ops enrichment.

Scans the server-rendered homepage with one plain HTTP request. No browser, no proxy, no login — so it is fast and cheap.

**Price: $9 per 1,000 sites** ($0.009 each) plus $0.001 per run start, **charged only on successful scans** (HTTP 2xx). Unreachable sites, invalid URLs and error pages are returned with an `error` field and are **not charged**.

### What it detects

113 signatures across these families:

| Family | Examples |
|---|---|
| CMS & site builders | WordPress, Drupal, Joomla, Ghost, Wix, Squarespace, Webflow, Framer, Weebly, HubSpot CMS, Contentful, Sanity, Strapi, TYPO3 |
| E-commerce | Shopify, WooCommerce, Magento, PrestaShop, BigCommerce, Salla, Zid, OpenCart |
| Frameworks & languages | Next.js, Nuxt, Gatsby, Remix, Astro, SvelteKit, Angular, React, Vue.js, Svelte, Laravel, Django, Ruby on Rails, Express, ASP.NET, PHP, Python |
| UI & JS libraries | jQuery, Bootstrap, Tailwind CSS, Alpine.js, htmx |
| Web servers, CDN, hosting | Nginx, Apache, LiteSpeed, IIS, Caddy, Cloudflare, CloudFront, Fastly, Akamai, Vercel, Netlify, Heroku, WP Engine, Kinsta, Varnish |
| Analytics & tags | Google Analytics, Google Tag Manager, Hotjar, Microsoft Clarity, Plausible, Matomo, Mixpanel, Segment, Amplitude, PostHog, Heap |
| Advertising pixels | Google Ads, Meta Pixel, TikTok Pixel, LinkedIn Insight Tag |
| Marketing, chat, CRM | HubSpot, Mailchimp, Klaviyo, Intercom, Drift, Crisp, Zendesk, Tawk.to, LiveChat, Freshdesk, Calendly, Typeform, Pardot, Marketo |
| Payments | Stripe, PayPal, Square, Checkout.com |
| Security & consent | reCAPTCHA, hCaptcha, Cloudflare Turnstile, OneTrust, Cookiebot |
| Other | Google Fonts, Font Awesome, YouTube/Vimeo embeds, Google Maps, Mapbox, Sentry, Cloudinary, Algolia, Elementor, Yoast SEO, Rank Math |

Where one technology implies another (WooCommerce → WordPress → PHP), the implied ones are added with `implied-by:` evidence.

### What it does NOT do

- **No JavaScript is executed.** Technologies injected only at runtime (some tag-manager-loaded tools, client-only widgets) can be missed, and client-side-only apps may under-detect. If a match came from the raw HTML, headers or cookies, it is reported; nothing is guessed.
- Only the page you give is scanned (usually the homepage) — it does not crawl the whole site.
- Sites that block datacenter traffic (some Cloudflare/Akamai setups) may answer 403; those rows are not charged.

### Input

| Field | What it does |
|---|---|
| `urls` | Website URLs or bare domains, one per line. Duplicates are removed. Up to 5,000 per run. |
| `concurrency` | Sites scanned at the same time, 1–50 (default 10). |

### Example output

Input: `https://wordpress.org`

```json
{
  "url": "https://wordpress.org",
  "finalUrl": "https://wordpress.org/",
  "status": 200,
  "scanOk": true,
  "technologyCount": 4,
  "technologies": [
    { "name": "WordPress", "category": "CMS", "version": "7.2", "evidence": ["meta:generator", "html"] },
    { "name": "Google Fonts", "category": "Font", "version": null, "evidence": ["html"] },
    { "name": "PHP", "category": "Programming language", "version": null, "evidence": ["implied-by:WordPress"] },
    { "name": "Nginx", "category": "Web server", "version": null, "evidence": ["header:server"] }
  ],
  "categories": {
    "CMS": ["WordPress"],
    "Font": ["Google Fonts"],
    "Programming language": ["PHP"],
    "Web server": ["Nginx"]
  },
  "server": "nginx",
  "error": null
}
```

From the same test batch: `stripe.com` → Next.js, React, Nginx; `airbnb.com` → Ruby on Rails, Ruby, Nginx.

### Use it from code

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

Python, with the [apify-client](https://pypi.org/project/apify-client/) package:

```python
from apify_client import ApifyClient

client = ApifyClient("YOUR_TOKEN")
run = client.actor("leadharbor/website-tech-stack-detector").call(
    run_input={"urls": ["https://www.shopify.com", "https://wordpress.org"]}
)
for row in client.dataset(run["defaultDatasetId"]).iterate_items():
    print(row["url"], row["technologyCount"], [t["name"] for t in row["technologies"]])
```

### Use it from an AI agent

This Actor is pay-per-event and works with the [Apify MCP server](https://mcp.apify.com), so AI agents (Claude, custom agents, anything MCP-compatible) can call it directly: point your agent at the Apify MCP server, and ask it to run `leadharbor/website-tech-stack-detector` with a list of URLs. Agents can also pay per call through Apify's agentic payment support.

### FAQ

**How is this different from Wappalyzer or BuiltWith?**
Same idea — fingerprint a site's technologies — at a different price point and shape: $0.009 per site, bulk lists up to 5,000 per run, structured JSON output with evidence per match, callable from code or AI agents. Browser extensions are fine for one site at a time; this is for lists.

**Am I charged for sites that don't load?**
No. Only sites that answered with HTTP 2xx and were scanned are charged. DNS failures, timeouts, 403s and 500s come back with an `error` field, free.

**Why does a site I know uses tool X not show it?**
No JavaScript is executed. If tool X is only injected at runtime (for example via Google Tag Manager), its marker may not be in the server-rendered HTML. Every reported match carries its `evidence`, so you can see exactly why it was detected.

**What does `version: null` mean?**
The technology was identified but its marker carries no version string. Versions are reported where the site exposes them (meta generator tags, header values, script filenames).

**Can I pass bare domains?**
Yes, `shopify.com` works — `https://` is assumed. Redirects are followed (up to 4), and `finalUrl` shows where the scan landed.

**How many sites per run?**
Up to 5,000. Split larger lists into several runs. With the default concurrency of 10, a 1,000-site list takes a few minutes.

### Find us on RapidAPI

- [Website Technology Detector on RapidAPI](https://rapidapi.com/samaanmohammed/api/website-technology-detector3): a REST API that detects the technologies of one site per call, with a free plan.

### Related actors

- [Website Contact Extractor](https://apify.com/leadharbor/website-contact-extractor): find emails and phones on the sites you just qualified by stack.
- [Domain Trust Check](https://apify.com/leadharbor/domain-trust-check): 0–100 trust score, domain age, SSL and email DNS for any domain.
- [Google Maps Scraper, MX-Checked Business Email Leads](https://apify.com/leadharbor/google-maps-verified-email-scraper): business leads with emails from Google Maps.
- [UAE](https://apify.com/leadharbor/uae-business-email-finder) / [UK](https://apify.com/leadharbor/uk-business-email-finder) / [USA](https://apify.com/leadharbor/usa-business-email-finder) business email finders.

### Changelog

- **1.0.0 (5 Oct 2026):** first release. 113 signatures, pay-per-event $0.009 per successful scan.

# Actor input Schema

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

One website per line, e.g. https://www.shopify.com or just shopify.com. Duplicates are removed.

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

How many sites are scanned at the same time (1-50). The default is fine for most lists.

## Actor input object example

```json
{
  "urls": [
    "https://www.shopify.com",
    "https://wordpress.org",
    "https://stripe.com"
  ],
  "concurrency": 10
}
```

# Actor output Schema

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

One row per website: detected technologies with category, version and evidence.

## `resultsUi` (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 = {
    "urls": [
        "https://www.shopify.com",
        "https://wordpress.org",
        "https://stripe.com"
    ]
};

// Run the Actor and wait for it to finish
const run = await client.actor("leadharbor/website-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": [
        "https://www.shopify.com",
        "https://wordpress.org",
        "https://stripe.com",
    ] }

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

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,leadharbor/website-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/zYLXVJX4iNZvKEOmt/builds/DZAnlVo7fYD0iy1DV/openapi.json