Detect Prefix-Free
Prefix-Free is a JavaScript library that automatically removes browser vendor prefixes from CSS properties, enabling developers to use standard CSS without worrying about cross-browser compatibility issues.
Detection looks at script sources, javascript globals across 2 fingerprint rules among the site's public responses.
01
Websites using Prefix-Free
Loading website list…
02
Signal classes
PluginView evaluates public page signals in these classes when identifying Prefix-Free. Individual fingerprint rule bodies are proprietary and are not published.
- Script sources
- JavaScript globals
03
Example public indicators for Prefix-Free
Illustrative indicators derived from public catalog metadata for Prefix-Free. A live scan may match additional proprietary rules beyond these examples.
- prefixfree.js
- PrefixFree
04
What a detection means
- Establishes
- One or more public signals on the scanned page matched a known Prefix-Free signature (2 rules) at the time of the scan.
- Does not establish
- A sitewide install of Prefix-Free, an active vendor contract, exclusive use, or that Prefix-Free is still in place today.
05
How to check a site for Prefix-Free
- 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest Prefix-Free signals.
- 2. PluginView reads only public responses (script sources, javascript globals) and scores them against the Prefix-Free signature set (2 rules).
- 3. Review the confidence score and text explanation for Prefix-Free on the results page.
06
FAQ: detecting Prefix-Free
- Can PluginView detect Prefix-Free without logging in?
- Yes. PluginView only reads publicly accessible responses when checking for Prefix-Free — typically script sources, javascript globals. It does not bypass authentication or paywalls.
- What category is Prefix-Free?
- Prefix-Free is classified under JavaScript libraries in the PluginView directory.
- How many fingerprint rules cover Prefix-Free?
- 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 Prefix-Free?
- Illustrative public indicators for Prefix-Free include prefixfree.js; PrefixFree. A live scan may match additional proprietary rules beyond these examples.
