Skip to main content

Website evidence · pilot dataset

Does outlook.com 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 7 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
2026-10-22T20:54:29.481806Z
Browser / scanner
156.0.8078.4 / 0.4

Captured titleOutlook

CanvasDraws text and reads canvas output.1 API entries

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

canvas.getContext1 calls

Frame: https://outlook.live.com/mail/

  • 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.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 0 provider labels

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

No provider or DNS evidence in this record.

Network and worker observations 28 requests
Captured scripts
0
Instrumented frames
1
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

  • outlook.live.com
  • res-1.cdn.office.net
  • res.public.onecdn.static.microsoft
Source record and integrity
Original source
results/headful/outlook-com-20261022T205429.json
Original file SHA-256
c2172b3c77a55ed4bd7a9e587893726fa4b70fb08d0be25c13f442f535aa04c5

Run ID: headful-c2172b3c77a5. The JSON contains sanitized observations, not the original private scan payload.

Other scan attempts (3)

Visitor setup

Not observed

0 of 5 signal families observed

Canvas: Not observedWebGL: Not observedAudio: Not observedFonts: Not observedDevice: Not observed
Measurement
Measured
Page context
Page document
Scan time
2026-10-21T23:24:31.708394Z
Browser / scanner
156.0.8078.4 / 0.3
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 0 provider labels

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

No provider or DNS evidence in this record.

Network and worker observations 126 requests
Captured scripts
3
Instrumented frames
1
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

  • browser.events.data.microsoft.com
  • eu-office.events.data.microsoft.com
  • login.live.com
  • login.microsoftonline.com
  • outlook.live.com
  • play.vidyard.com
  • res.public.onecdn.static.microsoft
  • rum.hlx.page
  • uhf.microsoft.com
  • www.microsoft.com
Source record and integrity
Original source
results/headful/outlook-com-20261021T232431.json
Original file SHA-256
e098541a7c1f52b28d92829bf7bdf3f07134d5d40325eca8b3d42426634aa924

Run ID: headful-e098541a7c1f. The JSON contains sanitized observations, not the original private scan payload.

Visitor setup

Navigation failed

Navigation failed

Canvas: UnmeasuredWebGL: UnmeasuredAudio: UnmeasuredFonts: UnmeasuredDevice: Unmeasured
Measurement
Navigation failed
Page context
Page not measured
Scan time
2026-10-22T15:20:33.897621Z
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/headful/outlook-com-20261022T152033.json
Original file SHA-256
9a1e45df956152064299abf3be5876be907c4ef58f02009790a908bc5fba815e

Run ID: headful-9a1e45df9561. 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
2026-10-22T20:54:28.398087Z
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/outlook-com-20261022T205428.json
Original file SHA-256
f3bcd743a1ce07fda3dce42d887430376b45457222150a14b5b9baf6901960b3

Run ID: headful-f3bcd743a1ce. 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
Page context
Page document
Scan time
2026-10-22T23:09:25.989074Z
Browser / scanner
156.0.8078.4 / 0.4

Captured titleMicrosoft Outlook Personal Email and Calendar | Microsoft 365

CanvasDraws text and reads canvas output.1 API entries

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

canvas.getContext1 calls

Frame: https://www.microsoft.com/en-us/microsoft-365/outlook/[redacted-id]

  • 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.2 API entries

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

navigator.userAgent6 calls

Frame: https://www.microsoft.com/en-us/microsoft-365/outlook/[redacted-id]

  • https://www.microsoft.com/golf/etc.clientlibs/[redacted-id]/clientlibs/clientlib-polyfills.ACSHASHtrue.min.jsline 57 · col 137
  • https://www.microsoft.com/golf/etc.clientlibs/[redacted-id]/clientlibs/clientlib-polyfills.ACSHASHtrue.min.jsline 360 · col 127
  • https://www.microsoft.com/golf/etc.clientlibs/onecloud/clientlibs/clientlib-mwf-new/main-light.ACSHASHfe9d5283cc0a38f995b64bf0f39192eb.min.jsline 863 · col 110
  • https://www.microsoft.com/golf/etc.clientlibs/onecloud/clientlibs/clientlib-reimagine/main-light.ACSHASH00102b25ff6b9941a81252d41d55bba2.min.jsline 249 · col 512
  • https://www.microsoft.com/golf/etc.clientlibs/onecloud/clientlibs/clientlib-reimagine/main-light.ACSHASH00102b25ff6b9941a81252d41d55bba2.min.jsline 698 · col 330
window.devicePixelRatio1 calls

Frame: https://www.microsoft.com/en-us/microsoft-365/outlook/[redacted-id]

  • https://www.microsoft.com/golf/etc.clientlibs/[redacted-id]/clientlibs/clientlib-polyfills.ACSHASHtrue.min.jsline 368 · col 19
Providers, script signatures, and DNS 0 provider labels

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

No provider or DNS evidence in this record.

Network and worker observations 167 requests
Captured scripts
50
Instrumented frames
1
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

  • browser.events.data.microsoft.com
  • c.s-microsoft.com
  • cdn-dynmedia-1.microsoft.com
  • eu-office.events.data.microsoft.com
  • login.live.com
  • login.microsoftonline.com
  • outlook.live.com
  • play.vidyard.com
  • res.public.onecdn.static.microsoft
  • rum.hlx.page
  • uhf.microsoft.com
  • wcpstatic.microsoft.com
  • www.microsoft.com
Source record and integrity
Original source
results/headless/outlook-com-20261022T230925.json
Original file SHA-256
055340d687239d29bd0636e929ceeaa7643a73004c6a91315d457c1bb1ada350

Run ID: research-055340d68723. The JSON contains sanitized observations, not the original private scan payload.

Other scan attempts (2)

Research setup

Not observed

0 of 5 signal families observed

Canvas: Not observedWebGL: Not observedAudio: Not observedFonts: Not observedDevice: Not observed
Measurement
Measured
Page context
Page document
Scan time
2026-10-21T21:32:21.478787Z
Browser / scanner
156.0.8078.4 / 0.3

Captured titleOutlook

CanvasDraws text and reads canvas output.1 API entries

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

canvas.getContext1 calls

Frame: https://outlook.live.com/mail/

  • 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.userAgent5 calls

Frame: https://outlook.live.com/mail/

  • https://res.public.onecdn.static.microsoft/owamail/hashed-v1/scripts/owa.mailindex.29feb534.jsline 2 · col 103465
  • https://res.public.onecdn.static.microsoft/owamail/hashed-v1/scripts/owa.mailindex.29feb534.jsline 7 · col 9799
  • https://res.public.onecdn.static.microsoft/owamail/hashed-v1/scripts/owa.mailindex.29feb534.jsline 7 · col 9819
Providers, script signatures, and DNS 0 provider labels

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

No provider or DNS evidence in this record.

Network and worker observations 125 requests
Captured scripts
9
Instrumented frames
1
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

  • login.live.com
  • login.microsoftonline.com
  • outlook.live.com
  • res.public.onecdn.static.microsoft
Other recorded API calls 2
  • document.cookie.read2 calls
  • document.cookie.write1 calls
Source record and integrity
Original source
results/headless/outlook-com-20261021T213221.json
Original file SHA-256
604ae0c7001a63e29c6d74fd2a3fdb3709c49ead70b79d8e3b63fdc0281a4956

Run ID: research-604ae0c7001a. 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
2026-10-22T18:44:56.743973Z
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/outlook-com-20261022T184456.json
Original file SHA-256
3236556bde6bdf0886579a68376f90e23d126e78ffc2e552f33b239dca210803

Run ID: research-3236556bde6b. 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 →