Web Tech API

The Web Tech API provides deep website technology intelligence, including web stack detection, HTTP headers, meta tags, security headers, and page structure analysis.

Authentication

All API requests require authentication. Include your API key in the request header:

X-API-Key: your_api_key_here

Production Endpoints

GET /api/v1/webtech/{domain}

GET /api/v1/webtech?url={url}

Parameters

Response Field Descriptions

The API returns a JSON object with a detailed analysis of the website's front-end and back-end technologies.

technologies Array

This array contains objects, each representing a detected technology.

Example Response

{
  "domain": "github.com",
  "final_url": "https://github.com/",
  "status_code": 200,
  "title": "GitHub: Let’s build from here",
  "html_lang": "en",
  "meta": {
    "description": "GitHub is where over 100 million developers shape the future of software, together. Contribute to the open source community, manage your Git repositories, review code like a pro, track bugs and features, power your CI/CD and DevOps workflows, and secure code before you commit it.",
    "keywords": null,
    "generator": null,
    "open_graph": {
      "og:image": "https://github.githubassets.com/assets/cb-30379375.jpg",
      "og:image:alt": "GitHub is where over 100 million developers shape the future of software, together. Contribute to the open source community, manage your Git repositories, review code like a pro, track bugs and features, power your CI/CD and DevOps workflows, and secure code before you commit it.",
      "og:title": "GitHub: Let’s build from here",
      "og:url": "https://github.com/"
    },
    "twitter": {
      "twitter:card": "summary_large_image",
      "twitter:site": "@github",
      "twitter:title": "GitHub: Let’s build from here"
    },
    "robots": null
  },
  "headers": {
    "server": "Varnish",
    "content-type": "text/html; charset=utf-8",
    "...": "..."
  },
  "security_headers": {
    "strict-transport-security": "max-age=31536000; includeSubdomains; preload",
    "x-frame-options": "deny",
    "x-content-type-options": "nosniff",
    "x-xss-protection": "0"
  },
  "cookies": ["..."],
  "links": {
    "canonical": "https://github.com/",
    "favicon": "https://github.githubassets.com/favicons/favicon.svg",
    "manifest": "/manifest.json"
  },
  "structure": {
    "script_count": 10,
    "stylesheet_count": 2,
    "image_count": 5,
    "form_count": 2,
    "anchor_count": 50,
    "external_links": 10,
    "internal_links": 40
  },
  "technologies": [
    { "name": "Varnish", "version": null },
    { "name": "React", "version": "18.2.0" }
  ],
  "redirect_chain": [],
  "metadata": {
    "data_freshness": {"last_update_check": "2025-08-16T20:35:36.365Z"},
    "timestamp": "2025-08-16T20:35:50.108Z",
    "response_time_ms": 1850,
    "request_id": "req_1755376547140_e2d4a023"
  }
}

Examples

cURL (Domain in Path)

curl -X GET "https://api.chapyapi.com/api/v1/webtech/github.com" \
  -H "X-API-Key: your_api_key_here"

cURL (URL as Query Parameter)

curl -X GET "https://api.chapyapi.com/api/v1/webtech?url=https://www.github.com/devAlphaSystem" \
  -H "X-API-Key: your_api_key_here"

JavaScript

const apiKey = 'your_api_key_here';

async function fetchWebTech(target) {
  const isUrl = target.startsWith('http://') || target.startsWith('https://');
  const endpoint = isUrl ? `/api/v1/webtech?url=${encodeURIComponent(target)}` : `/api/v1/webtech/${target}`;
  const response = await fetch(`https://api.chapyapi.com${endpoint}`, {
    headers: {
      'X-API-Key': apiKey
    }
  });
  const data = await response.json();
  console.log(data);
}

fetchWebTech('github.com');
fetchWebTech('https://www.github.com/devAlphaSystem');

Python

import requests

api_key = "your_api_key_here"

def fetch_web_tech(target):
    if target.startswith('http://') or target.startswith('https://'):
        url = f"https://api.chapyapi.com/api/v1/webtech?url={requests.utils.quote(target, safe='')}"
    else:
        url = f"https://api.chapyapi.com/api/v1/webtech/{target}"
    
    headers = {"X-API-Key": api_key}
    response = requests.get(url, headers=headers)
    data = response.json()
    print(data)

fetch_web_tech("github.com")
fetch_web_tech("https://www.github.com/devAlphaSystem")

Error Handling

The API uses standard HTTP status codes and returns error details in JSON format.

Error Response Example

{
  "error": "Failed to resolve host: google-does-not-exist.com",
  "code": "SERVICE_ERROR",
  "requestId": "req_1755376547140_e2d4a023"
}