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Website evidence · pilot dataset

Does zoom.us fingerprint you?

No monitored fingerprinting signals observed in the latest measured scans.

No monitored signal family met its threshold in the latest measured scans. This limited visit does not establish that the site never fingerprints visitors. Earlier runs remain available below.

Open evidence JSON ↗

All 6 source records are included in the JSON. Scan timestamps and versions are shown as recorded. The tabs show the latest usable homepage measurement for each setup. Later failed attempts remain in the history. Scan scope and methodology ↗

Inside the scan

← All websites

Visitor setup

Not observed

0 of 5 signal families observed

Canvas: Not observedWebGL: Not observedAudio: Not observedFonts: Not observedDevice: Not observed
Measurement
Measured · Partial load
Page context
Page document
Scan time
2026-10-22T17:24:43.780512Z
Browser / scanner
156.0.8078.4 / 0.4

Captured titleOne platform to connect | Zoom

CanvasDraws text and reads canvas output.0 API entries

Observed requires a text-drawing API and a canvas readback API. Guide ↗

No matching API call was captured.

WebGLQueries the graphics environment.0 API entries

Observed requires at least three distinct WebGL probing APIs. Guide ↗

No matching API call was captured.

AudioRenders or reads audio samples.0 API entries

Observed requires offline rendering, buffer reads, or analyser reads. Guide ↗

No matching API call was captured.

FontsMeasures text repeatedly.0 API entries

Observed requires at least ten text-measurement calls. Guide ↗

No matching API call was captured.

DeviceReads browser and display properties.0 API entries

Observed requires at least three distinct browser, screen, or window properties. Guide ↗

No matching API call was captured.

Providers, script signatures, and DNS 2 provider labels

Provider labels and static signatures are scanner observations. A library-name match does not establish that its code executed.

  • Google Tag Managerwww.googletagmanager.com
  • Optimizely (A/B testing)a20673560014.cdn.optimizely.com, cdn.optimizely.com, logx.optimizely.com
Network and worker observations 244 requests
Captured scripts
5
Instrumented frames
2
Google Ads observed
No
Transmission evidence
Not validated

Legacy transmission hints are excluded. A request after an API call does not establish that the extracted value was sent.

Third-party hosts

  • a20673560014.cdn.optimizely.com
  • cdn.bc0a.com
  • cdn.cookielaw.org
  • cdn.jsdelivr.net
  • cdn.optimizely.com
  • ixfd2-api.bc0a.com
  • logx.optimizely.com
  • www.googletagmanager.com
  • www.zoom.com
Source record and integrity
Original source
results/headful/zoom-us-20261022T172443.json
Original file SHA-256
c4aface441f12a458b03b514a84817348695e301d9c3c5c1d2363e3062bf5699

Run ID: headful-c4aface441f1. The JSON contains sanitized observations, not the original private scan payload.

Other scan attempts (2)

Visitor setup

Navigation failed

Navigation failed

Canvas: UnmeasuredWebGL: UnmeasuredAudio: UnmeasuredFonts: UnmeasuredDevice: Unmeasured
Measurement
Navigation failed
Page context
Page not measured
Scan time
2026-10-19T01:30:54.821751Z
Browser / scanner
156.0.8078.4 / 0.3
Navigation failed — no usable scan result

Navigation or page loading failed in this browser setup. The record does not establish why it failed.

Source record and integrity
Original source
results/headful/zoom-us-20261019T013054.json
Original file SHA-256
cebb8bef54e9c843ea9dd47d86773d81983d126d6e0e76fc8c40a7d3b83721b7

Run ID: headful-cebb8bef54e9. The JSON contains sanitized observations, not the original private scan payload.

Visitor setup

Scanner error

Scanner error

Canvas: UnmeasuredWebGL: UnmeasuredAudio: UnmeasuredFonts: UnmeasuredDevice: Unmeasured
Measurement
Scanner error
Page context
Page not measured
Scan time
2026-10-22T17:24:42.404060Z
Browser / scanner
156.0.8078.4 / 0.4
Scanner error — no usable scan result

The scanner crashed while collecting this page. No usable API results were saved for this setup. A fresh scan is needed; this is not a site-blocking verdict.

Source record and integrity
Original source
results/headful/zoom-us-20261022T172442.json
Original file SHA-256
efabff2687bba264e3655057b5f0a8aaaf38b5f5b058a8d4b97ca6cf04e3f635

Run ID: headful-efabff2687bb. The JSON contains sanitized observations, not the original private scan payload.

Research setup

Not observed

0 of 5 signal families observed

Canvas: Not observedWebGL: Not observedAudio: Not observedFonts: Not observedDevice: Not observed
Measurement
Measured · Partial load
Page context
Page document
Scan time
2026-10-23T00:22:32.976266Z
Browser / scanner
156.0.8078.4 / 0.4

Captured titleOne platform to connect | Zoom

CanvasDraws text and reads canvas output.3 API entries

Observed requires a text-drawing API and a canvas readback API. Guide ↗

canvas.getContext1 calls
  • Inline caller recorded
canvas.getContext1 calls
  • https://www.zoom.com/
canvas.getContext1 calls

Frame: https://www.zoom.com/

  • Inline caller recorded
WebGLQueries the graphics environment.0 API entries

Observed requires at least three distinct WebGL probing APIs. Guide ↗

No matching API call was captured.

AudioRenders or reads audio samples.0 API entries

Observed requires offline rendering, buffer reads, or analyser reads. Guide ↗

No matching API call was captured.

FontsMeasures text repeatedly.0 API entries

Observed requires at least ten text-measurement calls. Guide ↗

No matching API call was captured.

DeviceReads browser and display properties.1 API entries

Observed requires at least three distinct browser, screen, or window properties. Guide ↗

navigator.userAgent35 calls

Frame: https://www.zoom.com/

  • https://cdn.optimizely.com/js/6395285578973184.jsline 2 · col 108274
  • https://cdn.optimizely.com/js/6395285578973184.jsline 2 · col 296605
  • https://www.googletagmanager.com/gtm.js
Providers, script signatures, and DNS 2 provider labels

Provider labels and static signatures are scanner observations. A library-name match does not establish that its code executed.

  • Google Tag Managerwww.googletagmanager.com
  • Optimizely (A/B testing)a20673560014.cdn.optimizely.com, cdn.optimizely.com, logx.optimizely.com
Network and worker observations 237 requests
Captured scripts
36
Instrumented frames
4
Google Ads observed
No
Transmission evidence
Not validated

Legacy transmission hints are excluded. A request after an API call does not establish that the extracted value was sent.

Third-party hosts

  • a20673560014.cdn.optimizely.com
  • cdn.bc0a.com
  • cdn.cookielaw.org
  • cdn.jsdelivr.net
  • cdn.optimizely.com
  • logx.optimizely.com
  • www.googletagmanager.com
  • www.zoom.com
Other recorded API calls 4
  • document.cookie.read2 calls
  • document.cookie.read19 calls
  • document.cookie.write1 calls
  • document.cookie.write6 calls
Source record and integrity
Original source
results/headless/zoom-us-20261023T002232.json
Original file SHA-256
be1ee266ea00454ec2ddb2a373e192a7be2cdc79a5b32d4dd12373086ae90163

Run ID: research-be1ee266ea00. The JSON contains sanitized observations, not the original private scan payload.

Other scan attempts (2)

Research setup

Navigation failed

Navigation failed

Canvas: UnmeasuredWebGL: UnmeasuredAudio: UnmeasuredFonts: UnmeasuredDevice: Unmeasured
Measurement
Navigation failed
Page context
Page not measured
Scan time
2026-10-19T01:22:57.588605Z
Browser / scanner
156.0.8078.4 / 0.3
Navigation failed — no usable scan result

Navigation or page loading failed in this browser setup. The record does not establish why it failed.

Source record and integrity
Original source
results/headless/zoom-us-20261019T012257.json
Original file SHA-256
2e4ae868a4aa76752a9dad6e5b32cc31f24e14f4b5e41e7d254741cfeb6f80ec

Run ID: research-2e4ae868a4aa. The JSON contains sanitized observations, not the original private scan payload.

Research setup

Navigation failed

Navigation failed

Canvas: UnmeasuredWebGL: UnmeasuredAudio: UnmeasuredFonts: UnmeasuredDevice: Unmeasured
Measurement
Navigation failed
Page context
Page not measured
Scan time
2026-10-22T19:37:44.603272Z
Browser / scanner
156.0.8078.4 / 0.4
Navigation failed — no usable scan result

Navigation or page loading failed in this browser setup. The record does not establish why it failed.

Source record and integrity
Original source
results/headless/zoom-us-20261022T193744.json
Original file SHA-256
acc778858295f6b4628114df74bd48d95007b0c7d13af69cebd08f14f5f12bc9

Run ID: research-acc778858295. The JSON contains sanitized observations, not the original private scan payload.

Queries, request bodies, cookies, extracted values, raw errors, and session payloads are excluded before publication. The source digest identifies the original private record.

Read the sanitized JSON →