Antibot Detector

Free Chrome extension that automatically identifies 26+ security technologies including CAPTCHAs, anti-bot protection, and fingerprinting techniques as you browse.

100% Free
Local Detection
Open Source
Real-Time
Add to Chrome - It's Free View on GitHub
Antibot Detector Chrome Extension

CAPTCHA Systems

  • reCAPTCHA v2 & v3
  • hCaptcha
  • FunCaptcha (Arkose Labs)
  • GeeTest
  • Cloudflare Turnstile

Anti-Bot Systems

Fingerprinting Techniques

How It Works

1

Install

One-click install from Chrome Web Store. No registration needed.

2

Browse

Visit any website. Detection runs automatically in the background.

3

View Results

Click the icon to see detected technologies with confidence scores.

4

Analyze

Export history, use advanced tools, or plan your scraping strategy.

Multi-Layer Detection Engine

DOM Inspection

Scans HTML elements for CAPTCHA widgets, iframes, and security script signatures.

Network Monitoring

Analyzes HTTP headers, cookies, and responses for anti-bot service markers.

Window Properties

Detects injected JavaScript objects that anti-bot services add to the global scope.

API Interception

Hooks into Canvas, WebGL, and Audio APIs to detect active fingerprinting attempts.

Who Uses Antibot Detector?

Web Developers

Test and verify your own anti-bot implementations. Ensure CAPTCHA and security configurations work as expected.

Security Researchers

Analyze website security postures. Study anti-bot trends and fingerprinting techniques across the web.

Web Scraping Pros

Identify challenges before building scrapers. Know which protections you'll need to plan around.

Ready to Detect Anti-Bot Technologies?

Install the free Chrome extension and start identifying security technologies on any website instantly.

Add to Chrome - Free Star on GitHub

Resources & Documentation

Documentation
Blog Posts

Related Fingerprinting Tools

Canvas Fingerprint WebGL Fingerprint Audio Fingerprint TLS/JA3 Fingerprint

How to bypass web scraping bot detection

Web Scraping With Node-Unblocker

Tutorial on how to avoid web scraper blocking. What is javascript and TLS (JA3) fingerprinting and what role request headers play in blocking.
How to Avoid Web Scraping Blocking: Headers Guide

Introduction to web scraping headers - what do they mean, how to configure them in web scrapers and how to avoid being blocked.
How to Avoid Web Scraping Blocking: Javascript

Introduction to how javascript is used to detect web scrapers. What's in javascript fingerprint and how to correctly spoof it for web scraping.