# Website Tech Stack Detector (`webdatatools/tech-stack-detector`) Actor

Find out which CMS, e-commerce platform, analytics, ad pixels, chat widget and payment provider any website runs — one clean row per domain.

- **URL**: https://apify.com/webdatatools/tech-stack-detector.md
- **Developed by:** [Murat Uzun](https://apify.com/webdatatools) (community)
- **Categories:** Lead generation, E-commerce, SEO tools
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

from $3.00 / 1,000 results

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?

Actors are web data automations that power AI and operations. They run on the Apify platform to scrape websites, process data, connect APIs, and automate workflows.
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.
Actors are written with capital "A".

## 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.
The best way to integrate Actors is as follows.

- **AI agents and MCP clients** — the [Apify MCP server](https://docs.apify.com/integrations/mcp.md) at `https://mcp.apify.com` (remote, streamable HTTP, OAuth on first use).
- **Agentic workflows and local Actor development** — [Agent Skills](https://apify.com/.well-known/agent-skills/index.json) with the [Apify CLI](https://docs.apify.com/cli/docs.md): `npm install -g apify-cli`, then `apify login`.
- **JavaScript/TypeScript projects** — the official [JS/TS client](https://docs.apify.com/api/client/js/docs.md): `npm install apify-client`.
- **Python projects** — the official [Python client](https://docs.apify.com/api/client/python/docs.md): `pip install apify-client`.
- **Any other language** — the [REST API](https://docs.apify.com/api/v2.md).

For usage examples, see the [API](#api) section below.

For more details, see Apify documentation as [Markdown index](https://docs.apify.com/llms.txt) and [Markdown full-text](https://docs.apify.com/llms-full.txt).

# README

### What is Website Tech Stack Detector?

Website Tech Stack Detector is an Apify Actor that tells you what any website is built on: CMS, e-commerce platform, analytics, ad pixels, e-mail marketing, chat widget, payment provider, framework, cookie-consent tool, and hosting — **one clean row per website**, not per page. It runs on plain HTTP, no headless browser, so a few thousand domains is fast and cheap.

### What data does Website Tech Stack Detector extract?

Website Tech Stack Detector extracts every signature anchored to something a site can only have if it truly runs it — a vendor CDN hostname, a namespaced variable, a generator tag:

| Field | Type | Description |
|---|---|---|
| `domain` | string | Root domain, `www.` stripped |
| `title` / `description` | string | Homepage title and meta description |
| `generator` | string | `<meta name="generator">` tag, if present |
| `cms` / `ecommerce` | array | CMS and e-commerce platforms |
| `analytics` / `advertising` | array | Analytics tools and ad pixels |
| `emailMarketing` / `chat` / `payments` | array | Marketing, chat, payment tools |
| `frameworks` / `cookieConsent` | array | Frameworks and consent tools |
| `cdn` / `server` | array | Hosting and web server |
| `primaryCms` / `primaryEcommerce` | string | Best single guess |
| `isEcommerce` | boolean | True if a shop platform was found |
| `trackingIds` | object | GA4, GTM, Ads, Meta Pixel, Hotjar, Yandex, TikTok IDs |
| `technologies` / `technologyCount` | array/number | All detections, count |
| `pagesCrawled` / `scrapedAt` | number/string | Pages fetched, timestamp |
| `error` | string | Error message if domain could not be crawled (null if successful) |

### How to use Website Tech Stack Detector

1. Paste your websites into **Websites** (bare domains or full URLs).
2. Optionally pick **Technology categories**; empty means everything. Leave **Max pages per website** at 3.
3. Enable **Follow subdomains** for sites like `shop.example.com`, then click **Start** and download results as JSON, CSV, Excel, or HTML.

### Example input

```json
{
  "startUrls": [{ "url": "https://example.com" }],
  "maxPagesPerDomain": 3,
  "categories": ["cms", "ecommerce", "advertising"]
}
```

### Example output

```json
{
  "domain": "example-shop.com",
  "title": "Example Shop — Handmade Ceramics",
  "cms": ["WordPress"],
  "ecommerce": ["WooCommerce"],
  "analytics": ["Google Analytics 4", "Google Tag Manager"],
  "advertising": ["Meta Pixel", "Google Ads"],
  "payments": ["Stripe", "PayPal"],
  "primaryCms": "WordPress",
  "isEcommerce": true,
  "trackingIds": { "ga4": ["G-8XKQ2LM9PZ"], "gtm": ["GTM-T7FPMN"] },
  "technologyCount": 15,
  "pagesCrawled": 3,
  "scrapedAt": "2026-09-09T12:00:00.000Z",
  "error": null
}
```

### Input parameters

| Parameter | Type | Default | Description |
|---|---|---|---|
| `startUrls` | array | apify.com | Websites to fingerprint, one row each |
| `maxPagesPerDomain` | integer | 3 | Page budget per website (1–50) |
| `categories` | array | `[]` (all) | Technology categories to detect |
| `followSubdomains` | boolean | false | Also inspect subdomains |
| `maxConcurrency` | integer | 10 | Parallel requests (1–50) |
| `proxyConfiguration` | object | none | Optional proxy |

### Pricing

Website Tech Stack Detector uses pay-per-event pricing: **$0.005 per website result** ($5 per 1,000), plus a negligible $0.00005 actor-start fee, with platform usage included. HTML-only fetching keeps a 1,000-domain list at 3 pages each to a few cents of compute. Set **Maximum cost per run** to cap spend.

### Website Tech Stack Detector vs. BuiltWith and Wappalyzer subscriptions

BuiltWith and Wappalyzer sell monthly subscriptions with lookup caps. This Actor is pay-per-event, run on demand or on a schedule, results straight into a dataset or your own pipeline via the API — no subscription, no unused seats.

### Using Website Tech Stack Detector with AI agents and MCP

Website Tech Stack Detector runs on pay-per-event pricing with limited permissions — the two requirements for an Actor to be callable through the Apify MCP server at mcp.apify.com. An agent passes `startUrls` and gets one row per domain back, and connects via n8n, Make, Zapier, or LangChain through Apify's integrations.

### FAQ

**How accurate is it?** Every signature is anchored to something a site can only have if it truly runs that technology, not a brand name in page text.

**Why did it miss a tool I know is there?** Usually Google Tag Manager: tags loaded *through* GTM are injected at runtime and never appear in HTML, which this Actor reads only — it reports the GTM container, not the tags inside it. Raising `maxPagesPerDomain` helps for scripts on missed pages.

**Does it detect Turkish e-commerce platforms?** Yes — Ticimax, IdeaSoft, T-Soft, ikas, Platin Market, iyzico, PayTR, and Shopier.

**Is this legal to run?** The Actor reads only public HTML and collects no personal data. You're responsible for complying with the sites' terms and applicable law.

**How do I control cost?** Set **Maximum cost per run** — narrowing categories and lowering **Max pages per website** also cut compute.

**Can I export as CSV or Excel?** Yes, from the Output tab and API.

### Related Actors

Part of the **webdatatools** web-intelligence suite — every Actor is pay-per-event, runs without
proxies or a headless browser, and returns one clean row per entity:

**Website & domain intelligence**

- [Website Contact & Social Extractor](https://apify.com/webdatatools/contact-extractor) — e-mails, phones and social profiles per domain
- [Domain DNS & Email Security Checker](https://apify.com/webdatatools/dns-email-security-checker) — SPF, DKIM, DMARC, MX provider, registrar and domain age
- [Domain Security Audit](https://apify.com/webdatatools/domain-security-audit) — TLS expiry, security headers, redirect chain, robots and llms.txt
- [Subdomain Finder (Certificate Transparency)](https://apify.com/webdatatools/subdomain-finder) — every subdomain seen in CT logs, with a live DNS check
- [Bulk Core Web Vitals & PageSpeed Audit](https://apify.com/webdatatools/core-web-vitals-audit) — Lighthouse scores, LCP, CLS, INP and top fixes per URL
- [On-Page SEO Audit](https://apify.com/webdatatools/seo-page-audit) — title, meta, headings, links, images and schema issues per page
- [Sitemap URL Extractor & Change Monitor](https://apify.com/webdatatools/sitemap-extractor) — every sitemap URL, or new and removed pages between runs
- [Wayback Machine Snapshot & Page Change Tracker](https://apify.com/webdatatools/wayback-page-diff) — how a page changed over time, or every archived snapshot

**Content for AI, LLMs and RAG**

- [AI Web Search & Read](https://apify.com/webdatatools/ai-web-search) — a query turned into clean Markdown from the top search results
- [Website to Markdown Crawler for LLM & RAG](https://apify.com/webdatatools/website-to-markdown) — any site as clean Markdown per page, no browser
- [Article & News Extractor](https://apify.com/webdatatools/article-extractor) — clean article text, author, date and Markdown per URL
- [Structured Data & JSON-LD Extractor](https://apify.com/webdatatools/structured-data-extractor) — Schema.org and Open Graph data from any page
- [Google News Scraper](https://apify.com/webdatatools/google-news-scraper) — news results by keyword, topic or site
- [Press Release Monitor](https://apify.com/webdatatools/press-release-monitor) — PR Newswire, Business Wire and GlobeNewswire releases

**Search, video and social**

- [Google Search Results Scraper](https://apify.com/webdatatools/google-search-scraper) — organic SERP results per keyword and country
- [YouTube Comments Scraper](https://apify.com/webdatatools/youtube-comments-scraper) — comments and replies with likes, no API key
- [YouTube Channel Latest Videos](https://apify.com/webdatatools/youtube-channel-videos) — the latest 15 videos of any channel from RSS
- [YouTube Channel Videos Scraper](https://apify.com/webdatatools/youtube-channel-scraper) — a channel's full video, shorts and stream list
- [YouTube Search Results Scraper](https://apify.com/webdatatools/youtube-search-scraper) — videos, channels and playlists per query
- [YouTube Video Details Scraper](https://apify.com/webdatatools/youtube-video-details) — views, likes, description, tags and chapters per video
- [Apple Podcasts Lookup & Episodes Scraper](https://apify.com/webdatatools/podcast-lookup) — podcast metadata and episodes from iTunes and RSS
- [Bluesky Scraper](https://apify.com/webdatatools/bluesky-scraper) — posts, profiles, followers and threads from the AT Protocol API

**Leads, jobs and company data**

- [Company 360](https://apify.com/webdatatools/company-360) — one row per domain: contacts, tech, security, hiring and company facts
- [Hiring Signals Scraper](https://apify.com/webdatatools/hiring-signals) — open jobs and hiring velocity from 10 public ATS boards
- [Y Combinator Companies & Founders Scraper](https://apify.com/webdatatools/yc-companies-scraper) — YC startups by batch, industry and hiring status
- [Wikidata Entity & Company Enrichment](https://apify.com/webdatatools/wikidata-entity-enrichment) — HQ, founders, employees, revenue and social IDs per company
- [Bulk Email Validator](https://apify.com/webdatatools/email-validator) — syntax, MX, disposable, role and free-provider checks
- [OpenStreetMap POI Extractor](https://apify.com/webdatatools/overpass-poi-extractor) — shops and amenities by radius, bbox or area

**Developer, app and research data**

- [npm, PyPI & Crates.io Package Health Checker](https://apify.com/webdatatools/package-health-checker) — releases, downloads, deprecation and a health score
- [GitHub Repository Health & Activity Report](https://apify.com/webdatatools/github-repo-health) — stars, commits, contributors and risk flags per repo
- [VS Code Marketplace Extension Scraper](https://apify.com/webdatatools/vscode-marketplace-extensions) — installs, ratings and versions per extension
- [Chrome Web Store Extension Scraper](https://apify.com/webdatatools/chrome-web-store-extensions) — users, rating, version and developer per extension
- [Google Play Store Scraper](https://apify.com/webdatatools/google-play-scraper) — apps, ratings, installs, developer contact and reviews
- [App Store (iOS) App Metadata & Top Charts](https://apify.com/webdatatools/app-store-lookup) — ratings, price, version and charts per app
- [CrossRef DOI & Citation Metadata Lookup](https://apify.com/webdatatools/crossref-doi-lookup) — papers, authors, journals and citation counts
- [FDA Recalls & Adverse Events Monitor](https://apify.com/webdatatools/openfda-recall-monitor) — food, drug and device recalls from openFDA
- [iCal / ICS Calendar Feed to Events Extractor](https://apify.com/webdatatools/ical-calendar-extractor) — any public calendar feed as event rows
- [Shopify Store Products Scraper](https://apify.com/webdatatools/shopify-products-scraper) — catalog, prices, variants and stock per store

### Support and feedback

Found a technology it should detect, or a false positive? Open an issue on the **Issues** tab.

# Actor input Schema

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

Enter the websites to fingerprint, one row is returned per website. Use bare domains or full URLs, e.g. example.com or https://example.com.

## `maxPagesPerDomain` (type: `integer`):

Enter how many pages to fetch per website, e.g. 3. The homepage exposes most of the stack; 2-4 pages also catches checkout and marketing scripts that only load on shop or contact pages.

## `categories` (type: `array`):

Select which technology categories to detect, e.g. cms, ecommerce. Leave empty to detect everything; narrowing the list makes runs cheaper and keeps the output to the columns you care about.

## `followSubdomains` (type: `boolean`):

Turn this on to also inspect subdomains such as shop.example.com, which often run a different platform than the main site.

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

Enter the maximum number of parallel requests, e.g. 10. Lower it if a target site rate-limits you.

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

Optional. Select a proxy configuration, e.g. Apify Proxy with the datacenter group, which is enough for most sites and keeps the run cheap.

## Actor input object example

```json
{
  "startUrls": [
    {
      "url": "https://apify.com"
    }
  ],
  "maxPagesPerDomain": 3,
  "categories": [],
  "followSubdomains": false,
  "maxConcurrency": 10,
  "proxyConfiguration": {
    "useApifyProxy": false
  }
}
```

# Actor output Schema

## `technologies` (type: `string`):

All fingerprinted websites — download as JSON, CSV, Excel or HTML.

# 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": [
        {
            "url": "https://apify.com"
        }
    ],
    "maxPagesPerDomain": 3,
    "maxConcurrency": 10
};

// Run the Actor and wait for it to finish
const run = await client.actor("webdatatools/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": [{ "url": "https://apify.com" }],
    "maxPagesPerDomain": 3,
    "maxConcurrency": 10,
}

# Run the Actor and wait for it to finish
run = client.actor("webdatatools/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": [
    {
      "url": "https://apify.com"
    }
  ],
  "maxPagesPerDomain": 3,
  "maxConcurrency": 10
}' |
apify call webdatatools/tech-stack-detector --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,webdatatools/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/K6jDqlY7EiQ2sbqLx/builds/FwAYc6ERbEnA7oUyr/openapi.json