Types & Providers
Captcha Catalogue
Every captcha type tracked by CaptchaFlow — indexed by provider, category, and solve difficulty.
28
Types
19
Providers
1
Categories
Showing 28 of 28 types
Kasada
Kasada
Next-generation bot protection using code obfuscation and behavioral signals.
0
solvers
2
vendors
Arkose FunCaptcha
Arkose Labs
Game-like challenge requiring puzzle interaction. Among the most difficult to automate.
4
solvers
3
vendors
Akamai Bot Manager
Akamai
Advanced bot management with telemetry-based detection. Extremely hard to bypass.
2
solvers
2
vendors
F5 Shape Security
F5
Military-grade bot mitigation acquired by F5. Used by major financial institutions.
0
solvers
1
vendors
PerimeterX / HUMAN
HUMAN Security
Behavioural biometrics-based bot detection, now under HUMAN Security.
0
solvers
2
vendors
reCAPTCHA Enterprise
Enterprise tier with advanced risk analysis, device fingerprinting, and custom scoring.
4
solvers
2
vendors
hCaptcha Enterprise
Intuition Machines
Enterprise version with enhanced detection, custom tasks, and deeper bot analysis.
2
solvers
1
vendors
Imperva / Incapsula
Imperva
WAF-integrated bot protection with JavaScript challenge and browser validation.
0
solvers
0
vendors
Cloudflare Challenge (5s)
Cloudflare
Browser integrity check with JavaScript challenge. Often seen on DDoS-protected sites.
1
solvers
0
vendors
DataDome CAPTCHA
DataDome
AI-driven bot protection that blocks scrapers and requires real browser behavior.
5
solvers
2
vendors
GeeTest v4
GeeTest
Next-gen GeeTest with behavioral analysis and multiple challenge types.
2
solvers
0
vendors
DataDome Slider
DataDome
Slide-to-verify challenge used by DataDome as a secondary check.
2
solvers
0
vendors
AWS WAF CAPTCHA
Amazon Web Services
Native captcha challenge integrated into AWS WAF for application protection.
0
solvers
1
vendors
Capy Puzzle
Capy
Puzzle-based captcha where users slide pieces into place.
0
solvers
0
vendors
Lemin Cropped Captcha
Lemin
Image recognition captcha where users select the correct crop.
0
solvers
0
vendors
CyberSiARA
CyberSiARA
AI-powered captcha using behavioral analysis for silent protection.
0
solvers
0
vendors
MTCaptcha
MTCaptcha
GDPR-compliant captcha alternative with accessibility features.
1
solvers
0
vendors
KeyCAPTCHA
KeyCAPTCHA
Puzzle-based captcha where users assemble pieces to complete an image.
1
solvers
0
vendors
GeeTest v3
GeeTest
Slider puzzle captcha widely used in Asian markets and gaming platforms.
5
solvers
0
vendors
Friendly Captcha
Friendly Captcha
Privacy-focused, EU-based captcha that uses proof-of-work instead of user challenges.
0
solvers
0
vendors
reCAPTCHA v3
Invisible risk-score based captcha. No user interaction required; harder to bypass.
11
solvers
2
vendors
Cloudflare Turnstile
Cloudflare
Privacy-first, invisible captcha replacement. Uses browser signals without user challenges.
11
solvers
2
vendors
Image CAPTCHA
Generic
Classic distorted text or image recognition challenge. Easily automated.
6
solvers
1
vendors
Audio CAPTCHA
Generic
Audio challenge where users transcribe spoken characters. Accessibility fallback.
4
solvers
0
vendors
hCaptcha
Intuition Machines
Privacy-focused alternative to reCAPTCHA. Pays website owners for human classifications.
16
solvers
3
vendors
Math CAPTCHA
Generic
Simple arithmetic challenge. Very easy to solve programmatically.
2
solvers
0
vendors
Text CAPTCHA
Generic
Simple text-based challenge like "What is 2+2?" or "Type the word in the box."
3
solvers
0
vendors
reCAPTCHA v2
Classic checkbox + image challenge. The most widely deployed captcha in history.
18
solvers
4
vendors