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, reliabili…

Jul 09, 2026

hCaptcha

hCaptcha Domain Mismatch Error explained with practical setup guidance, provider selection criteria, troubles…

Jun 04, 2026

hCaptcha

hCaptcha 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 e…

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_CAPTC…

May 05, 2026