Error Codes

Fixes for error codes issues across CAPTCHA-solver integrations.

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Cloudflare CAPTCHA

Cloudflare Turnstile Siteverify Errors explained for teams evaluating CAPTCHA solver APIs, pricing, reliabilit...

Jul 09, 2026

hCaptcha

h Captcha Domain Mismatch Error explained with practical setup guidance, provider selection criteria, troubles...

Jun 04, 2026

hCaptcha

h Captcha 99 Error explained with practical setup guidance, provider selection criteria, troubleshooting check...

May 21, 2026

Troubleshooting

Cloudflare Turnstile error 300010 explained — root causes, the production fixes, and how to detect when the er...

May 07, 2026

Troubleshooting CAPTCHA Solver API Errors — Error Codes and Fixes

Complete reference for CAPTCHA solver API error codes — ERROR_WRONG_USER_KEY, ERROR_ZERO_BALANCE, ERROR_CAPTCH...

May 05, 2026