YUI is a JavaScript and CSS library with more than 30 unique components including low-level DOM utilities and high-level user-interface widgets.

01

Websites using YUI

14 hostnames in the PluginView corpus for this technology.

HostnameLast seen
ipage.com8/3/2026
launchpad.net8/3/2026
blueletterbible.org8/7/2026
gaiaonline.com8/4/2026
yuiblog.com8/4/2026
02

What a detection means

Establishes
One or more public signals on the scanned page matched a known YUI signature at the time of the scan.
Does not establish
A sitewide install of YUI, an active vendor contract, exclusive use, or that YUI is still in place today.
03

How to check a site for YUI

  1. 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest YUI signals.
  2. 2. PluginView reads only public responses and scores them against proprietary YUI fingerprints. Rule bodies and identifiers are not published.
  3. 3. Review the confidence score and text explanation for YUI on the results page.
04

FAQ: detecting YUI

Can PluginView detect YUI without logging in?
Yes. PluginView only reads publicly accessible responses when checking for YUI. It does not bypass authentication or paywalls.
What category is YUI?
YUI is classified under JavaScript libraries in the PluginView directory.
Does PluginView publish YUI fingerprint rules?
No. Detection uses proprietary fingerprint rules that are not published. Scan results explain matches in plain language without disclosing rule bodies or identifiers.

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