Detect Cloudflare Browser Insights

AnalyticsRUM

Cloudflare Browser Insights is a tool that measures the performance of websites from the perspective of users.

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

01

Websites using Cloudflare Browser Insights

Loading website list…

02

Signal classes

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

  • Script sources
  • JavaScript globals
03

Example public indicators for Cloudflare Browser Insights

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

  • static.cloudflareinsights.com/beacon.min?.js
  • __cfBeaconCustomTag
04

What a detection means

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

How to check a site for Cloudflare Browser Insights

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

FAQ: detecting Cloudflare Browser Insights

Can PluginView detect Cloudflare Browser Insights without logging in?
Yes. PluginView only reads publicly accessible responses when checking for Cloudflare Browser Insights — typically script sources, javascript globals. It does not bypass authentication or paywalls.
What category is Cloudflare Browser Insights?
Cloudflare Browser Insights is classified under Analytics, RUM in the PluginView directory.
How many fingerprint rules cover Cloudflare Browser Insights?
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 Cloudflare Browser Insights?
Illustrative public indicators for Cloudflare Browser Insights include static.cloudflareinsights.com/beacon.min?.js; __cfBeaconCustomTag. A live scan may match additional proprietary rules beyond these examples.