How CAPTCHA and anti-bot systems actually work under the hood, and how to work with them - reCAPTCHA scoring internals, error codes, and why a score comes back low. 4 articles in this category.

Build an authorized reCAPTCHA v3 automation workflow that keeps API keys server-side, treats tokens carefully, and uses bounded retries.

What invalid-input-response, timeout-or-duplicate, browser-error and the other reCAPTCHA codes mean when automating, and which are your token's fault.

The create-task, poll, token model behind captcha-solving APIs - what happens server-side, token vs cookie captchas, and the pay-per-solve billing.

Your reCAPTCHA v3 score is set mostly by your proxy's IP reputation, not the solver. How ReCaptchaV3Task splits the work, and a checklist to debug a score that won't climb.