Detect BEM
BEM (Block, Element, Modifier) is a naming convention for classes in HTML and CSS what was developed by Yandex.
Detection looks at html markup across 1 fingerprint rules among the site's public responses.
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Websites using BEM
Loading website list…
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Signal classes
PluginView evaluates public page signals in these classes when identifying BEM. Individual fingerprint rule bodies are proprietary and are not published.
- HTML markup
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Example public indicators for BEM
Illustrative indicators derived from public catalog metadata for BEM. A live scan may match additional proprietary rules beyond these examples.
- <data-bem
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What a detection means
- Establishes
- One or more public signals on the scanned page matched a known BEM signature (1 rules) at the time of the scan.
- Does not establish
- A sitewide install of BEM, an active vendor contract, exclusive use, or that BEM is still in place today.
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How to check a site for BEM
- 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest BEM signals.
- 2. PluginView reads only public responses (html markup) and scores them against the BEM signature set (1 rules).
- 3. Review the confidence score and text explanation for BEM on the results page.
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FAQ: detecting BEM
- Can PluginView detect BEM without logging in?
- Yes. PluginView only reads publicly accessible responses when checking for BEM — typically html markup. It does not bypass authentication or paywalls.
- What category is BEM?
- BEM is classified under JavaScript frameworks in the PluginView directory.
- How many fingerprint rules cover BEM?
- This reference currently tracks 1 fingerprint rule across html markup. Individual rule bodies are proprietary and are not published.
- What public signals suggest a site uses BEM?
- Illustrative public indicators for BEM include <data-bem. A live scan may match additional proprietary rules beyond these examples.
