# Tech Stack Detector — Bulk Website Technology Lookup (`accurate_pouch/tech-stack-detector`) Actor

Detect frameworks, CMS, analytics, CDN, hosting, chat tools, and more for any list of URLs. No API key needed — reads public HTTP headers and HTML.

- **URL**: https://apify.com/accurate\_pouch/tech-stack-detector.md
- **Developed by:** [Manchitt Sanan](https://apify.com/accurate_pouch) (community)
- **Categories:** Developer tools, SEO tools
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, NaN bookmarks
- **User rating**: No ratings yet

## Pricing

Pay per usage

This Actor is paid per platform usage. The Actor is free to use, and you only pay for the Apify platform usage, which gets cheaper the higher subscription plan you have.

Learn more: https://docs.apify.com/platform/actors/running/actors-in-store#pay-per-usage

## What's an Apify Actor?

Actors are a software tools running on the Apify platform, for all kinds of web data extraction and automation use cases.
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.

In JavaScript/TypeScript projects, use official [JavaScript/TypeScript client](https://docs.apify.com/api/client/js.md):

```bash
npm install apify-client
```

In Python projects, use official [Python client library](https://docs.apify.com/api/client/python.md):

```bash
pip install apify-client
```

In shell scripts, use [Apify CLI](https://docs.apify.com/cli/docs.md):

````bash
# MacOS / Linux
curl -fsSL https://apify.com/install-cli.sh | bash
# Windows
irm https://apify.com/install-cli.ps1 | iex
```bash

In AI frameworks, you might use the [Apify MCP server](https://docs.apify.com/platform/integrations/mcp.md).

If your project is in a different language, use 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

## Tech Stack Detector — Bulk Website Technology Lookup

Detect the technology stack of any website in bulk. Identify 500+ technologies across 40+ categories including frameworks, CMS platforms, analytics tools, CDNs, hosting providers, chat tools, payment processors, security services, and more — with no API key required.

Uses five detection vectors inspired by the Wappalyzer open-source project:

- **HTTP response headers** — Server, X-Powered-By, CDN markers, cache headers
- **HTML body patterns** — Framework fingerprints, SDK includes, class names
- **Meta generator tags** — `<meta name="generator">` for CMS/SSG detection
- **Script source URLs** — `<script src>` patterns for analytics, CDN, and widget SDKs
- **Cookies** — Session cookies, framework markers, consent flags
- **Implies logic** — If WordPress is detected, PHP is automatically added; if Next.js is detected, React and Node.js are added

---

### Use cases

- **Lead qualification** — Filter prospects by their tech stack before outreach. Target companies using Salesforce, HubSpot, or Shopify.
- **Competitor research** — Discover what your competitors are built on and which tools they use.
- **Sales prospecting** — Find companies using a technology your product integrates with or replaces.
- **Agency audits** — Quickly audit a client's existing stack before a migration or redesign project.
- **Market research** — Analyse what CMS, analytics, or hosting platforms a segment of the market has adopted.
- **Due diligence** — Verify the tech stack of a company you're acquiring or partnering with.

---

### Input

```json
{
    "urls": [
        "https://vercel.com",
        "https://shopify.com",
        "https://wordpress.org"
    ],
    "maxConcurrency": 5
}
````

| Field | Type | Required | Default | Description |
|-------|------|----------|---------|-------------|
| `urls` | array of strings | Yes | — | Website URLs to analyse. `https://` is added automatically if omitted. |
| `maxConcurrency` | integer | No | `5` | Parallel requests (1-50). |

***

### Output

Each URL produces one item in the dataset:

```json
{
    "url": "https://vercel.com",
    "technologies": [
        { "name": "Vercel", "category": "Hosting" },
        { "name": "Next.js", "category": "JavaScript Framework" },
        { "name": "React", "category": "JavaScript Framework" },
        { "name": "Node.js", "category": "Programming Language" },
        { "name": "Google Analytics", "category": "Analytics" }
    ],
    "techCount": 5,
    "categories": ["Hosting", "JavaScript Framework", "Programming Language", "Analytics"],
    "statusCode": 200,
    "status": "success",
    "error": null
}
```

| Field | Description |
|-------|-------------|
| `url` | Final URL after redirects |
| `technologies` | Array of detected technologies, each with `name` and `category` |
| `techCount` | Total number of technologies detected |
| `categories` | Unique categories present |
| `statusCode` | HTTP response status code |
| `status` | `success` or `error` |
| `error` | Error message if status is `error`, otherwise `null` |

***

### Detected technology categories

| Category | Examples |
|----------|---------|
| Web Server | Apache, Nginx, IIS, LiteSpeed, Caddy, Tomcat, Gunicorn |
| CDN | Cloudflare, Amazon CloudFront, Fastly, Akamai, BunnyCDN, Azure CDN |
| Hosting | Vercel, Netlify, GitHub Pages, AWS, Heroku, Render, Railway, Firebase |
| CMS | WordPress, Drupal, Shopify, Webflow, Wix, Squarespace, Ghost, Hugo, Jekyll |
| E-commerce | WooCommerce, Magento, BigCommerce, Shopware, Saleor, Snipcart |
| JavaScript Framework | React, Next.js, Vue.js, Angular, Nuxt, Svelte, Astro, Remix, Solid.js, Qwik |
| JavaScript Library | jQuery, Alpine.js, htmx, GSAP, D3.js, Three.js, Chart.js, Socket.io |
| CSS Framework | Bootstrap, Tailwind CSS, Bulma, Material UI, Chakra UI, Ant Design, DaisyUI |
| Analytics | Google Analytics, Hotjar, Mixpanel, Plausible, PostHog, Heap, Adobe Analytics, Umami |
| Tag Manager | Google Tag Manager, Adobe Launch, Tealium |
| Marketing | HubSpot, Mailchimp, Marketo, Klaviyo, ActiveCampaign, Braze, Sendinblue |
| Chat | Intercom, Drift, Zendesk, Crisp, Tawk.to, Tidio, Chatwoot, Help Scout |
| Payment | Stripe, PayPal, Square, Braintree, Klarna, Razorpay, Adyen |
| Security | Google reCAPTCHA, hCaptcha, Cloudflare Turnstile, Auth0, Clerk, Okta |
| Error Tracking | Sentry, Bugsnag, Rollbar, Raygun, LogRocket, Honeybadger |
| Monitoring | Datadog, New Relic, Dynatrace, Elastic APM, Pingdom |
| Programming Language | PHP, ASP.NET, Java, Python, Ruby, Node.js, Go |
| Web Framework | Rails, Django, Laravel, Express.js, Flask, Spring, NestJS, FastAPI |
| Font | Google Fonts, Adobe Fonts, Font Awesome, Material Icons |
| A/B Testing | Optimizely, VWO, Google Optimize, AB Tasty |
| Feature Flags | LaunchDarkly, Split.io, Statsig, Flagsmith |
| Search | Algolia, Elasticsearch, Typesense, Meilisearch |
| Media | Cloudinary, Imgix, Vimeo, YouTube Embed, Wistia, JW Player |
| Privacy | OneTrust, Cookiebot, TrustArc, Osano, iubenda |
| Forms | Typeform, JotForm, Gravity Forms, Tally |
| Social | Facebook SDK, Twitter/X Widgets, LinkedIn Insight, TikTok Pixel |
| Advertising | Google Ads, Facebook Pixel, Criteo, Taboola |
| Scheduling | Calendly, Cal.com, Chili Piper |
| Notifications | OneSignal, PushEngage, Firebase Cloud Messaging |
| WordPress Plugin | Yoast SEO, Elementor, WPBakery, Divi, Jetpack, WP Rocket |
| Accessibility | AccessiBe, UserWay, AudioEye |
| Performance | Varnish, Cloudflare Rocket Loader, Partytown, Service Worker |
| Build Tool | Webpack, Vite, Parcel, esbuild |
| CRM | Salesforce, Pipedrive, Zoho, HubSpot CRM |
| Backend | Firebase, Supabase, AWS Amplify, PlanetScale |
| Maps | Google Maps, Mapbox, Leaflet |
| Translation | Google Translate, Weglot, WPML |
| Comments | Disqus, Utterances, Giscus |

***

### Pricing

**$0.003 per URL successfully analysed** (pay-per-event pricing).

- Failed requests (timeouts, network errors) are **not charged**.
- 1,000 URLs = $3.00
- 10,000 URLs = $30.00

***

### Performance

- Default concurrency: 5 parallel requests
- Typical latency: 500-1500 ms per URL (single HTTP request per site)
- Cap at 50 concurrent for large batches

***

### Limitations

- Detection is based on publicly visible signals in HTTP headers, HTML source, meta tags, script URLs, and cookies. Server-side technologies that leave no client-side traces may not be detected.
- Sites behind heavy bot protection (Cloudflare challenges, JavaScript-only rendering without static HTML) may return limited results.
- JavaScript-rendered content is not executed — detection is based on the initial HTML response.

***

### No API key required

This actor makes a single HTTP request per URL using a standard browser User-Agent. No authentication, no third-party services, no rate-limit tiers to manage.

***

### Related Tools by manchittlab

- **[Broken Link Checker](https://apify.com/accurate_pouch/broken-link-checker)** — Recursively crawl your website and find every broken link, 404, redirect, and timeout.
- **[Email Validator Pro](https://apify.com/accurate_pouch/email-validator)** — Bulk email validation with SMTP check, 5,300+ disposable domains, deliverability scoring.
- **[Lighthouse Auditor](https://apify.com/accurate_pouch/lighthouse-auditor)** — Batch Lighthouse audits for performance, SEO, accessibility, and Core Web Vitals.
- **[Image Processor](https://apify.com/accurate_pouch/image-processor)** — Batch resize, convert to WebP/AVIF, compress, watermark. Powered by sharp.
- **[Domain Age Checker](https://apify.com/accurate_pouch/domain-age-checker)** — Bulk RDAP domain age, registration, and expiration lookup.
- **[Google Sheets Reader & Writer](https://apify.com/accurate_pouch/google-sheets-rw)** — Read any Google Sheet to JSON or append rows. Service Account auth.

***

### Run on Apify

[![Run on Apify](https://apify.com/static/run-on-apify.svg)](https://apify.com/accurate_pouch/tech-stack-detector)

No setup needed. Click above to run in the cloud. $0.003 per operation.

# Actor input Schema

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

List of website URLs to detect the tech stack of. Include https:// or the actor will add it automatically.

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

Number of parallel HTTP requests (1–50). Default: 5.

## Actor input object example

```json
{
  "urls": [
    "https://techcrunch.com",
    "https://wired.com",
    "https://intercom.com"
  ],
  "maxConcurrency": 5
}
```

# 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://techcrunch.com",
        "https://wired.com",
        "https://intercom.com"
    ]
};

// Run the Actor and wait for it to finish
const run = await client.actor("accurate_pouch/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://techcrunch.com",
        "https://wired.com",
        "https://intercom.com",
    ] }

# Run the Actor and wait for it to finish
run = client.actor("accurate_pouch/tech-stack-detector").call(run_input=run_input)

# Fetch and print Actor results from the run's dataset (if there are any)
print("💾 Check your data here: https://console.apify.com/storage/datasets/" + run["defaultDatasetId"])
for item in client.dataset(run["defaultDatasetId"]).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://techcrunch.com",
    "https://wired.com",
    "https://intercom.com"
  ]
}' |
apify call accurate_pouch/tech-stack-detector --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "command": "npx",
            "args": [
                "mcp-remote",
                "https://mcp.apify.com/?tools=accurate_pouch/tech-stack-detector",
                "--header",
                "Authorization: Bearer <YOUR_API_TOKEN>"
            ]
        }
    }
}

```

## OpenAPI specification

```json
{
    "openapi": "3.0.1",
    "info": {
        "title": "Tech Stack Detector — Bulk Website Technology Lookup",
        "description": "Detect frameworks, CMS, analytics, CDN, hosting, chat tools, and more for any list of URLs. No API key needed — reads public HTTP headers and HTML.",
        "version": "0.2",
        "x-build-id": "7P9tjkxzcIJisgRze"
    },
    "servers": [
        {
            "url": "https://api.apify.com/v2"
        }
    ],
    "paths": {
        "/acts/accurate_pouch~tech-stack-detector/run-sync-get-dataset-items": {
            "post": {
                "operationId": "run-sync-get-dataset-items-accurate_pouch-tech-stack-detector",
                "x-openai-isConsequential": false,
                "summary": "Executes an Actor, waits for its completion, and returns Actor's dataset items in response.",
                "tags": [
                    "Run Actor"
                ],
                "requestBody": {
                    "required": true,
                    "content": {
                        "application/json": {
                            "schema": {
                                "$ref": "#/components/schemas/inputSchema"
                            }
                        }
                    }
                },
                "parameters": [
                    {
                        "name": "token",
                        "in": "query",
                        "required": true,
                        "schema": {
                            "type": "string"
                        },
                        "description": "Enter your Apify token here"
                    }
                ],
                "responses": {
                    "200": {
                        "description": "OK"
                    }
                }
            }
        },
        "/acts/accurate_pouch~tech-stack-detector/runs": {
            "post": {
                "operationId": "runs-sync-accurate_pouch-tech-stack-detector",
                "x-openai-isConsequential": false,
                "summary": "Executes an Actor and returns information about the initiated run in response.",
                "tags": [
                    "Run Actor"
                ],
                "requestBody": {
                    "required": true,
                    "content": {
                        "application/json": {
                            "schema": {
                                "$ref": "#/components/schemas/inputSchema"
                            }
                        }
                    }
                },
                "parameters": [
                    {
                        "name": "token",
                        "in": "query",
                        "required": true,
                        "schema": {
                            "type": "string"
                        },
                        "description": "Enter your Apify token here"
                    }
                ],
                "responses": {
                    "200": {
                        "description": "OK",
                        "content": {
                            "application/json": {
                                "schema": {
                                    "$ref": "#/components/schemas/runsResponseSchema"
                                }
                            }
                        }
                    }
                }
            }
        },
        "/acts/accurate_pouch~tech-stack-detector/run-sync": {
            "post": {
                "operationId": "run-sync-accurate_pouch-tech-stack-detector",
                "x-openai-isConsequential": false,
                "summary": "Executes an Actor, waits for completion, and returns the OUTPUT from Key-value store in response.",
                "tags": [
                    "Run Actor"
                ],
                "requestBody": {
                    "required": true,
                    "content": {
                        "application/json": {
                            "schema": {
                                "$ref": "#/components/schemas/inputSchema"
                            }
                        }
                    }
                },
                "parameters": [
                    {
                        "name": "token",
                        "in": "query",
                        "required": true,
                        "schema": {
                            "type": "string"
                        },
                        "description": "Enter your Apify token here"
                    }
                ],
                "responses": {
                    "200": {
                        "description": "OK"
                    }
                }
            }
        }
    },
    "components": {
        "schemas": {
            "inputSchema": {
                "type": "object",
                "required": [
                    "urls"
                ],
                "properties": {
                    "urls": {
                        "title": "URLs",
                        "type": "array",
                        "description": "List of website URLs to detect the tech stack of. Include https:// or the actor will add it automatically.",
                        "items": {
                            "type": "string"
                        }
                    },
                    "maxConcurrency": {
                        "title": "Max Concurrency",
                        "minimum": 1,
                        "maximum": 50,
                        "type": "integer",
                        "description": "Number of parallel HTTP requests (1–50). Default: 5.",
                        "default": 5
                    }
                }
            },
            "runsResponseSchema": {
                "type": "object",
                "properties": {
                    "data": {
                        "type": "object",
                        "properties": {
                            "id": {
                                "type": "string"
                            },
                            "actId": {
                                "type": "string"
                            },
                            "userId": {
                                "type": "string"
                            },
                            "startedAt": {
                                "type": "string",
                                "format": "date-time",
                                "example": "2025-01-08T00:00:00.000Z"
                            },
                            "finishedAt": {
                                "type": "string",
                                "format": "date-time",
                                "example": "2025-01-08T00:00:00.000Z"
                            },
                            "status": {
                                "type": "string",
                                "example": "READY"
                            },
                            "meta": {
                                "type": "object",
                                "properties": {
                                    "origin": {
                                        "type": "string",
                                        "example": "API"
                                    },
                                    "userAgent": {
                                        "type": "string"
                                    }
                                }
                            },
                            "stats": {
                                "type": "object",
                                "properties": {
                                    "inputBodyLen": {
                                        "type": "integer",
                                        "example": 2000
                                    },
                                    "rebootCount": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "restartCount": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "resurrectCount": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "computeUnits": {
                                        "type": "integer",
                                        "example": 0
                                    }
                                }
                            },
                            "options": {
                                "type": "object",
                                "properties": {
                                    "build": {
                                        "type": "string",
                                        "example": "latest"
                                    },
                                    "timeoutSecs": {
                                        "type": "integer",
                                        "example": 300
                                    },
                                    "memoryMbytes": {
                                        "type": "integer",
                                        "example": 1024
                                    },
                                    "diskMbytes": {
                                        "type": "integer",
                                        "example": 2048
                                    }
                                }
                            },
                            "buildId": {
                                "type": "string"
                            },
                            "defaultKeyValueStoreId": {
                                "type": "string"
                            },
                            "defaultDatasetId": {
                                "type": "string"
                            },
                            "defaultRequestQueueId": {
                                "type": "string"
                            },
                            "buildNumber": {
                                "type": "string",
                                "example": "1.0.0"
                            },
                            "containerUrl": {
                                "type": "string"
                            },
                            "usage": {
                                "type": "object",
                                "properties": {
                                    "ACTOR_COMPUTE_UNITS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATASET_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATASET_WRITES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "KEY_VALUE_STORE_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "KEY_VALUE_STORE_WRITES": {
                                        "type": "integer",
                                        "example": 1
                                    },
                                    "KEY_VALUE_STORE_LISTS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "REQUEST_QUEUE_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "REQUEST_QUEUE_WRITES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATA_TRANSFER_INTERNAL_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATA_TRANSFER_EXTERNAL_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "PROXY_RESIDENTIAL_TRANSFER_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "PROXY_SERPS": {
                                        "type": "integer",
                                        "example": 0
                                    }
                                }
                            },
                            "usageTotalUsd": {
                                "type": "number",
                                "example": 0.00005
                            },
                            "usageUsd": {
                                "type": "object",
                                "properties": {
                                    "ACTOR_COMPUTE_UNITS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATASET_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATASET_WRITES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "KEY_VALUE_STORE_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "KEY_VALUE_STORE_WRITES": {
                                        "type": "number",
                                        "example": 0.00005
                                    },
                                    "KEY_VALUE_STORE_LISTS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "REQUEST_QUEUE_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "REQUEST_QUEUE_WRITES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATA_TRANSFER_INTERNAL_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATA_TRANSFER_EXTERNAL_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "PROXY_RESIDENTIAL_TRANSFER_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "PROXY_SERPS": {
                                        "type": "integer",
                                        "example": 0
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }
}
```