WURFL.js is JavaScript that detects device models of smartphones, tablets, smart TVs and game consoles accessing your website.

Detection looks at script sources, javascript globals across 2 fingerprint rules among the site's public responses.

01

Websites using Wurfl

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02

Signal classes

PluginView evaluates public page signals in these classes when identifying Wurfl. Individual fingerprint rule bodies are proprietary and are not published.

  • Script sources
  • JavaScript globals
03

Example public indicators for Wurfl

Illustrative indicators derived from public catalog metadata for Wurfl. A live scan may match additional proprietary rules beyond these examples.

  • .wurfl.io
  • WURFL
04

What a detection means

Establishes
One or more public signals on the scanned page matched a known Wurfl signature (2 rules) at the time of the scan.
Does not establish
A sitewide install of Wurfl, an active vendor contract, exclusive use, or that Wurfl is still in place today.
05

How to check a site for Wurfl

  1. 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest Wurfl signals.
  2. 2. PluginView reads only public responses (script sources, javascript globals) and scores them against the Wurfl signature set (2 rules).
  3. 3. Review the confidence score and text explanation for Wurfl on the results page.
06

FAQ: detecting Wurfl

Can PluginView detect Wurfl without logging in?
Yes. PluginView only reads publicly accessible responses when checking for Wurfl — typically script sources, javascript globals. It does not bypass authentication or paywalls.
What category is Wurfl?
Wurfl is classified under JavaScript libraries in the PluginView directory.
How many fingerprint rules cover Wurfl?
This reference currently tracks 2 fingerprint rules across script sources, javascript globals. Individual rule bodies are proprietary and are not published.
What public signals suggest a site uses Wurfl?
Illustrative public indicators for Wurfl include .wurfl.io; WURFL. A live scan may match additional proprietary rules beyond these examples.

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