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CAPTCHA Types

What each challenge actually is and how it behaves: image and grid CAPTCHAs, reCAPTCHA v2/v3 and Enterprise, Cloudflare Turnstile and Challenge, Geetest, BLS-style numeric grids.

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CAPTCHA Types How to Identify Which CAPTCHA a Page Uses and Find Its Sitekey
Before you can submit a solver task you need three facts from the page: which challenge it serves, the sitekey, and where the token goes.

How to Identify Which CAPTCHA a Page Uses and Find Its Sitekey

Before you can submit a solver task you need three facts from the page: which challenge it serves, the siteke…

Sep 08, 2026
CAPTCHA Types Cloudflare Turnstile: The Widget, the Token, and the Thing It Is Not
Turnstile is a form widget that mints a short-lived cf-turnstile-response token, not the Cloudflare interstitial that hands out a clearance cookie.

Cloudflare Turnstile: The Widget, the Token, and the Thing It Is Not

Turnstile is a form widget that mints a short-lived cf-turnstile-response token, not the Cloudflare interstit…

Aug 19, 2026
CAPTCHA Types Every CAPTCHA Type, and What Solving Each One Means
Image grids, BLS numeric grids, re CAPTCHA v 2/v 3 and Enterprise, Cloudflare Turnstile and Challenge, Geetest v 3 — what each one actually returns (a text ans…

Every CAPTCHA Type, and What Solving Each One Means

Image grids, BLS numeric grids, reCAPTCHA v2/v3 and Enterprise, Cloudflare Turnstile and Challenge, Geetest v…

Aug 14, 2026