Is Zscaler Real User Monitoring (RUM) safe?
Zscaler RUM collects page URLs, Web Vitals, and JS errors from every webpage and sends them to the local Zscaler ZDX native host.
On every page load, the extension gathers navigation timing, Core Web Vitals (LCP, FCP, INP, CLS), resource URL lists, JavaScript error counts, and DOM element counts. This data is sent from the content script to the service worker, which packages it and transmits it via a native messaging channel to the Zscaler ZDX application installed on the user's machine. The native host also delivers a policy controlling which domains are monitored and at what intervals.
Who publishes itZscaler - no other listings under this identity
Zscaler - no other listings under this identity
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AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.
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Where it sends data
Destinations our analysis observed Zscaler Real User Monitoring (RUM) contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.
- com.zscaler.zdx.rum.native.app
Zscaler Real User Monitoring (RUM) sends data to com.zscaler.zdx.rum.native.app. No other extension we have analysed sends data here.