Wappalyzer Next

This project is a command line tool and python library that uses Wappalyzer extension (and its fingerprints) to detect technologies. Other projects that emerged after the discontinuation of the official open-source project are using outdated fingerprints and lack accuracy when used on dynamic web apps. This project bypasses those limitations.

• Installation
• For Users
• For Developers
• FAQ

Installation

Before installing wappalyzer, you will need to install Firefox and geckodriver. Below are detailed steps for setting up geckodriver but you may use google/youtube for help.

Install as a command-line tool

pipx install wappalyzer

Install as a library

To use it as a library, install it with pip inside an isolated container e.g. venv or docker. You may also --break-system-packages to do a 'regular' install but it is not recommended.

Install with docker

git clone https://github.com/s0md3v/wappalyzer-next.git
cd wappalyzer-next

docker compose up -d

docker compose run --rm wappalyzer -i https://example.com

docker compose run --rm wappalyzer -i https://example.com -oJ output.json

For Users

Some common usage examples are given below, refer to list of all options for more information.

• Scan a single URL: wappalyzer -i https://example.com
• Scan multiple URLs from a file: wappalyzer -i urls.txt -t 10
• Scan with authentication: wappalyzer -i https://example.com -c "sessionid=abc123; token=xyz789"
• Export results to JSON: wappalyzer -i https://example.com -oJ results.json

Options

Note: For accuracy use 'full' scan type (default). 'fast' and 'balanced' do not use browser emulation.

• -i: Input URL or file containing URLs (one per line)
• --scan-type: Scan type (default: 'full')
  • fast: Quick HTTP-based scan (sends 1 request)
  • balanced: HTTP-based scan with more requests
  • full: Complete scan using wappalyzer extension
• -t, --threads: Number of concurrent threads (default: 5)
• -oJ: JSON output file path
• -oC: CSV output file path
• -oH: HTML output file path
• -c, --cookie: Cookie header string for authenticated scans

For Developers

The python library is available on pypi as wappalyzer and can be imported with the same name.

Using the Library

The main function you'll interact with is analyze():

from wappalyzer import analyze

# Basic usage
results = analyze('https://example.com')

# With options
results = analyze(
    url='https://example.com',
    scan_type='full',  # 'fast', 'balanced', or 'full'
    threads=3,
    cookie='sessionid=abc123'
)

analyze() Function Parameters

• url (str): The URL to analyze
• scan_type (str, optional): Type of scan to perform
  • 'fast': Quick HTTP-based scan
  • 'balanced': HTTP-based scan with more requests
  • 'full': Complete scan including JavaScript execution (default)
• threads (int, optional): Number of threads for parallel processing (default: 3)
• cookie (str, optional): Cookie header string for authenticated scans

Return Value

Returns a dictionary with the URL as key and detected technologies as value:

{
  "https://github.com": {
    "Amazon S3": {"version": "", "confidence": 100, "categories": ["CDN"], "groups": ["Servers"]},
    "lit-html": {"version": "1.1.2", "confidence": 100, "categories": ["JavaScript libraries"], "groups": ["Web development"]},
    "React Router": {"version": "6", "confidence": 100, "categories": ["JavaScript frameworks"], "groups": ["Web development"]},
  "https://google.com" : {},
  "https://example.com" : {},
}}

FAQ

Why use Firefox instead of Chrome?

Firefox extensions are .xpi files which are essentially zip files. This makes it easier to extract data and slightly modify the extension to make this tool work.

What is the difference between 'fast', 'balanced', and 'full' scan types?

• fast: Sends a single HTTP request to the URL. Doesn't use the extension.
• balanced: Sends additional HTTP requests to .js files, /robots.txt and does DNS queries. Doesn't use the extension.
• full: Uses the official Wappalyzer extension to scan the URL in a headless browser.