# Website Technology Stack Detector (BuiltWith Alternative) (`scrapemint/website-tech-stack-detector`) Actor

Detect what any list of websites runs: CMS, ecommerce platform, analytics, marketing tools, chat widgets, frameworks, CDN, hosting and payments. One row per domain with evidence. No login, no API key. Pay only for detections.

- **URL**: https://apify.com/scrapemint/website-tech-stack-detector.md
- **Developed by:** [Ken M](https://apify.com/scrapemint) (community)
- **Categories:** Lead generation, Marketing, Developer tools
- **Features:** Limited permissions
- **Stats:** 144 total users, 66 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: 5.00 out of 5 stars

## Pricing

$10.00 / 1,000 tech stack rows

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 (BuiltWith Alternative)

Find out what any list of websites runs, without a $295/month BuiltWith plan. Give it domains, it fetches each homepage once and returns one clean row per site: the CMS, ecommerce platform, analytics and marketing tools, chat widgets, JavaScript framework, CDN, hosting, web server and payment providers, each with the evidence that matched.

### What you get

One row per website, with:

- `cms`, `ecommerce` (the headline platform, e.g. `WordPress`, `Shopify`)
- `byCategory` (all detections grouped: `cms`, `ecommerce`, `analytics`, `marketing`, `framework`, `hosting`, `server`, `payments`, `security`, `media`, `testing`, `search`)
- `technologies` (every detection with its `evidence`, e.g. `html: cdn.shopify.com` or `header: x-vercel-id`)
- `techCount`, `domain`, `finalUrl`, `httpStatus`, `reachable`, `scrapedAt`

Detection uses a precision-first signature set (about 100 technologies): vendor-hosted asset URLs, unique JavaScript globals, vendor response headers, and session cookie names. A technology in prose text does not trigger a match.

### Input

- `websites` (domains or URLs, one row each, up to 5000 per run)

### Example input

```json
{
  "websites": ["allbirds.com", "basecamp.com", "techcrunch.com"]
}
```

### Uses

- Segment lead lists by technology: find the Shopify stores, the HubSpot users, the WooCommerce shops
- Qualify prospects before outreach: pitch your Shopify app only to Shopify stores
- Competitor and market research: what do the top sites in a niche run
- Pairs with the [Website Contact Scraper](https://apify.com/scrapemint/website-contact-scraper): same domain list in, contacts from one, tech stack from the other, join on domain

### Pricing

Pay per detection row. A site only costs money when it yields at least one detected technology; unreachable or zero-detection sites are free. The first 10 detection rows of every run are free so you can validate output before you scale up.

### Notes

- Each site gets one polite homepage request, no crawling. Tools loaded only on inner pages will not show.
- Signatures favor precision over recall: a match means the vendor asset, header, or cookie is actually present. Client-rendered pages can hide some HTML signatures, but headers and cookies still work.
- Sites behind aggressive bot protection may be unreachable; those rows are free and marked `reachable: false`.
- This Actor reads only public data and never logs in.

### Related actors

- [Website Contact Scraper: Emails, Phones & Social Profiles](https://apify.com/scrapemint/website-contact-scraper): emails and phones for the same domains
- [Company Email Finder: People, Titles & Email Pattern](https://apify.com/scrapemint/company-email-finder): named people, titles and the email pattern at each company
- [SaaS Customer Finder: Companies Using Any Tool](https://apify.com/scrapemint/saas-customer-finder): find companies using a tool, then check their full stack here
- [DNS Records Checker: Full DNS Report for Any Domain](https://apify.com/scrapemint/dns-records-checker): mail provider, SPF and DMARC for each domain

# Actor input Schema

## `websites` (type: `array`):

Domains or URLs to analyze, e.g. apify.com or https://allbirds.com. One row per site.

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

Optional. Sites are fetched directly with one polite request each, so proxy is off by default. Supply one only if your target sites block datacenter IPs.

## Actor input object example

```json
{
  "websites": [
    "apify.com",
    "allbirds.com",
    "gymshark.com",
    "basecamp.com",
    "techcrunch.com",
    "ghost.org",
    "zapier.com",
    "mailchimp.com",
    "smashingmagazine.com",
    "buffer.com",
    "shopify.com",
    "stripe.com",
    "patagonia.com",
    "glossier.com"
  ]
}
```

# 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 = {
    "websites": [
        "apify.com",
        "allbirds.com",
        "gymshark.com",
        "basecamp.com",
        "techcrunch.com",
        "ghost.org",
        "zapier.com",
        "mailchimp.com",
        "smashingmagazine.com",
        "buffer.com",
        "shopify.com",
        "stripe.com",
        "patagonia.com",
        "glossier.com"
    ]
};

// Run the Actor and wait for it to finish
const run = await client.actor("scrapemint/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 = { "websites": [
        "apify.com",
        "allbirds.com",
        "gymshark.com",
        "basecamp.com",
        "techcrunch.com",
        "ghost.org",
        "zapier.com",
        "mailchimp.com",
        "smashingmagazine.com",
        "buffer.com",
        "shopify.com",
        "stripe.com",
        "patagonia.com",
        "glossier.com",
    ] }

# Run the Actor and wait for it to finish
run = client.actor("scrapemint/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 '{
  "websites": [
    "apify.com",
    "allbirds.com",
    "gymshark.com",
    "basecamp.com",
    "techcrunch.com",
    "ghost.org",
    "zapier.com",
    "mailchimp.com",
    "smashingmagazine.com",
    "buffer.com",
    "shopify.com",
    "stripe.com",
    "patagonia.com",
    "glossier.com"
  ]
}' |
apify call scrapemint/website-tech-stack-detector --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,scrapemint/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/iww2sY1llV0bdTSPg/builds/qh1R3A9jI1AzhStjd/openapi.json