Detect Modernizr
Modernizr is a JavaScript library that detects the features available in a user's browser.
Detection looks at script sources, javascript globals across 3 fingerprint rules among the site's public responses.
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Websites using Modernizr
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Signal classes
PluginView evaluates public page signals in these classes when identifying Modernizr. Individual fingerprint rule bodies are proprietary and are not published.
- Script sources
- JavaScript globals
03
Example public indicators for Modernizr
Illustrative indicators derived from public catalog metadata for Modernizr. A live scan may match additional proprietary rules beyond these examples.
- modernizr.?.*.js
- ?/modernizr.*.js
- Modernizr._version: .
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What a detection means
- Establishes
- One or more public signals on the scanned page matched a known Modernizr signature (3 rules) at the time of the scan.
- Does not establish
- A sitewide install of Modernizr, an active vendor contract, exclusive use, or that Modernizr is still in place today.
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How to check a site for Modernizr
- 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest Modernizr signals.
- 2. PluginView reads only public responses (script sources, javascript globals) and scores them against the Modernizr signature set (3 rules).
- 3. Review the confidence score and text explanation for Modernizr on the results page.
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FAQ: detecting Modernizr
- Can PluginView detect Modernizr without logging in?
- Yes. PluginView only reads publicly accessible responses when checking for Modernizr — typically script sources, javascript globals. It does not bypass authentication or paywalls.
- What category is Modernizr?
- Modernizr is classified under JavaScript libraries in the PluginView directory.
- How many fingerprint rules cover Modernizr?
- This reference currently tracks 3 fingerprint rules across script sources, javascript globals. Individual rule bodies are proprietary and are not published.
- What public signals suggest a site uses Modernizr?
- Illustrative public indicators for Modernizr include modernizr.?.*.js; ?/modernizr.*.js; Modernizr._version: .. A live scan may match additional proprietary rules beyond these examples.
