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