Detect Yandex SmartCaptcha
Yandex SmartCaptcha is a service for verifying queries to identify user requests and block bots.
Detection looks at response headers, javascript globals, dom selectors, inline scripts across 4 fingerprint rules among the site's public responses.
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Websites using Yandex SmartCaptcha
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Signal classes
PluginView evaluates public page signals in these classes when identifying Yandex SmartCaptcha. Individual fingerprint rule bodies are proprietary and are not published.
- Response headers
- JavaScript globals
- DOM selectors
- Inline scripts
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Example public indicators for Yandex SmartCaptcha
Illustrative indicators derived from public catalog metadata for Yandex SmartCaptcha. A live scan may match additional proprietary rules beyond these examples.
- x-yandex-captcha
- smartCaptcha
- div#smartcaptcha-status
- Yandex SmartCaptcha
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What a detection means
- Establishes
- One or more public signals on the scanned page matched a known Yandex SmartCaptcha signature (4 rules) at the time of the scan.
- Does not establish
- A sitewide install of Yandex SmartCaptcha, an active vendor contract, exclusive use, or that Yandex SmartCaptcha is still in place today.
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How to check a site for Yandex SmartCaptcha
- 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest Yandex SmartCaptcha signals.
- 2. PluginView reads only public responses (response headers, javascript globals, dom selectors) and scores them against the Yandex SmartCaptcha signature set (4 rules).
- 3. Review the confidence score and text explanation for Yandex SmartCaptcha on the results page.
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FAQ: detecting Yandex SmartCaptcha
- Can PluginView detect Yandex SmartCaptcha without logging in?
- Yes. PluginView only reads publicly accessible responses when checking for Yandex SmartCaptcha — typically response headers, javascript globals, dom selectors, inline scripts. It does not bypass authentication or paywalls.
- What category is Yandex SmartCaptcha?
- Yandex SmartCaptcha is classified under Security in the PluginView directory.
- How many fingerprint rules cover Yandex SmartCaptcha?
- This reference currently tracks 4 fingerprint rules across response headers, javascript globals, dom selectors, inline scripts. Individual rule bodies are proprietary and are not published.
- What public signals suggest a site uses Yandex SmartCaptcha?
- Illustrative public indicators for Yandex SmartCaptcha include x-yandex-captcha; smartCaptcha; div#smartcaptcha-status. A live scan may match additional proprietary rules beyond these examples.
