techprobe

High-performance web technology detector — Rust alternative to Wappalyzer.

Detects technologies used on websites by analyzing HTTP headers, HTML content, meta tags, cookies, JavaScript files, and more.

Features

• Fast: Written in Rust with async I/O for high-performance scanning
• Chrome Extension: Browser extension for real-time detection
• Compatible: Uses the same fingerprint format as Wappalyzer
• Multiple output formats: Text, JSON, and CSV
• Concurrent scanning: Scan multiple URLs simultaneously
• Extensible: Easy to add new technology fingerprints

Installation

CLI (Rust)

cargo build --release

The binary will be at target/release/techprobe.

Chrome Extension

1. Open chrome://extensions/
2. Enable "Developer mode"
3. Click "Load unpacked"
4. Select the extension/ folder

The extension will detect technologies on any website you visit and show a badge with the count.

Usage

Scan websites

# Scan a single website
techprobe scan example.com

# Scan multiple websites
techprobe scan site1.com site2.com site3.com

# Output as JSON
techprobe scan -F json example.com

# Save results to file
techprobe scan -o results.json example.com

# Follow redirects
techprobe scan --follow-redirects example.com

List technologies

# List all technologies
techprobe list

# Filter by category
techprobe list -c cms

# Search for a technology
techprobe list -s wordpress

Output Formats

Text (default)

Target: https://example.com
────────────────────────────────────────────────────────────
  ● WordPress v6.4 — CMS, Blogs
  ● PHP v8.2 — Programming Languages
  ● Nginx v1.24 — Web Servers

→ 3 technologies detected

JSON

[
  {
    "url": "https://example.com",
    "technologies": [
      {
        "name": "WordPress",
        "version": "6.4",
        "confidence": 100,
        "categories": ["CMS", "Blogs"]
      }
    ],
    "headers": {...},
    "status": 200,
    "elapsed_ms": 245
  }
]

CSV

url,technology,version,confidence,categories
https://example.com,WordPress,6.4,100,CMS;Blogs

Detection Methods

• HTTP Headers: Server, X-Powered-By, Set-Cookie, etc.
• HTML Content: Script tags, link tags, CSS classes
• Meta Tags: Generator, other meta information
• Cookies: Session cookies, tracking cookies
• JavaScript: Library detection via global variables
• URL Patterns: Domain-based detection

Fingerprint Database

The fingerprint database is in data/technologies.json and follows the Wappalyzer format. Each technology entry can include:

• description: Short description
• cats: Category IDs
• website: Official website URL
• headers: HTTP header patterns
• meta: Meta tag patterns
• cookies: Cookie patterns
• scriptSrc: Script URL patterns
• scripts: Inline script patterns
• html: HTML content patterns
• js: JavaScript property patterns
• implies: Other technologies that are implied
• requires: Technologies that must be detected first

Adding New Technologies

Edit data/technologies.json and add a new entry:

{
  "MyFramework": {
    "description": "A cool web framework",
    "cats": [18],
    "website": "https://myframework.dev",
    "headers": {
      "x-powered-by": "MyFramework"
    },
    "scriptSrc": [
      "myframework\\.js"
    ]
  }
}

Comparison with Wappalyzer

Feature	techprobe	Wappalyzer
Language	Rust + JS	JavaScript
Performance	High	Medium
CLI	Native	Node.js
Browser Extension	Yes	Yes
API	CLI-based	Web API
Fingerprint Format	Compatible	Original
Open Source	MIT	GPL-3.0

License

MIT