Detect Lozad.js
Lozad.js is a lightweight lazy-loading library that's just 535 bytes minified & gzipped.
Detection looks at javascript globals, inline scripts across 2 fingerprint rules among the site's public responses.
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Websites using Lozad.js
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Signal classes
PluginView evaluates public page signals in these classes when identifying Lozad.js. Individual fingerprint rule bodies are proprietary and are not published.
- JavaScript globals
- Inline scripts
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Example public indicators for Lozad.js
Illustrative indicators derived from public catalog metadata for Lozad.js. A live scan may match additional proprietary rules beyond these examples.
- lozad
- lozad.min.js
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What a detection means
- Establishes
- One or more public signals on the scanned page matched a known Lozad.js signature (2 rules) at the time of the scan.
- Does not establish
- A sitewide install of Lozad.js, an active vendor contract, exclusive use, or that Lozad.js is still in place today.
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How to check a site for Lozad.js
- 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest Lozad.js signals.
- 2. PluginView reads only public responses (javascript globals, inline scripts) and scores them against the Lozad.js signature set (2 rules).
- 3. Review the confidence score and text explanation for Lozad.js on the results page.
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FAQ: detecting Lozad.js
- Can PluginView detect Lozad.js without logging in?
- Yes. PluginView only reads publicly accessible responses when checking for Lozad.js — typically javascript globals, inline scripts. It does not bypass authentication or paywalls.
- What category is Lozad.js?
- Lozad.js is classified under JavaScript libraries, Performance in the PluginView directory.
- How many fingerprint rules cover Lozad.js?
- This reference currently tracks 2 fingerprint rules across javascript globals, inline scripts. Individual rule bodies are proprietary and are not published.
- What public signals suggest a site uses Lozad.js?
- Illustrative public indicators for Lozad.js include lozad; lozad.min.js. A live scan may match additional proprietary rules beyond these examples.
