Detect Friendly Captcha
Friendly Captcha is a proof-of-work based solution in which the user’s device does all the work.
Detection looks at dom selectors, inline scripts across 2 fingerprint rules among the site's public responses.
01
Websites using Friendly Captcha
Loading website list…
02
Signal classes
PluginView evaluates public page signals in these classes when identifying Friendly Captcha. Individual fingerprint rule bodies are proprietary and are not published.
- DOM selectors
- Inline scripts
03
Example public indicators for Friendly Captcha
Illustrative indicators derived from public catalog metadata for Friendly Captcha. A live scan may match additional proprietary rules beyond these examples.
- div.frc-captcha
- x-frc-client","js-0.0
04
What a detection means
- Establishes
- The listed vendor-controlled browser component was present and active on the scanned page at scan time.
- Does not establish
- It does not prove a sitewide installation, current commercial contract, backend-only use, exclusive use, or production transaction volume.
05
Minimum proof rule
Observe a live browser request, loaded script, or iframe to the listed unique vendor endpoint. Source-text-only matches do not qualify.
Best pages to check: Forms, signup, checkout
06
How to check a site for Friendly Captcha
- 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest Friendly Captcha signals (prefer: Forms, signup, checkout).
- 2. PluginView reads only public responses (dom selectors, inline scripts) and scores them against the Friendly Captcha signature set (2 rules).
- 3. Review the confidence score and text explanation for Friendly Captcha on the results page.
07
FAQ: detecting Friendly Captcha
- Can PluginView detect Friendly Captcha without logging in?
- Yes. PluginView only reads publicly accessible responses when checking for Friendly Captcha — typically dom selectors, inline scripts. It does not bypass authentication or paywalls.
- What category is Friendly Captcha?
- Friendly Captcha is classified under Security, Consent, CAPTCHA & Accessibility in the PluginView directory.
- How many fingerprint rules cover Friendly Captcha?
- This reference currently tracks 2 fingerprint rules across dom selectors, inline scripts. Individual rule bodies are proprietary and are not published.
- What public signals suggest a site uses Friendly Captcha?
- Illustrative public indicators for Friendly Captcha include div.frc-captcha; x-frc-client","js-0.0. A live scan may match additional proprietary rules beyond these examples.
- Which pages are best for detecting Friendly Captcha?
- For Friendly Captcha, start with: Forms, signup, checkout.
