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Website evidence · pilot dataset

Does nfl.com fingerprint you?

Browser signals observed; fingerprinting is unconfirmed.

Browser API activity met a monitored signal threshold in the latest measured scans. The activity alone does not establish a tracking purpose.

Open evidence JSON ↗

All 11 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

Signals observed

1 of 5 signal families observed

Canvas: Not observedWebGL: Not observedAudio: Not observedFonts: Not observedDevice: Observed
Measurement
Measured
Page context
Page document
Scan time
2026-10-22T23:32:54.162943Z
Browser / scanner
156.0.8078.4 / 0.4

Captured titleNFL.com | Official Site of the National Football League

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.nfl.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.8 API entries

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

navigator.deviceMemory2 calls

Frame: https://www.nfl.com/

  • https://www.nfl.com/_next/static/chunks/9049-2cb4482fc789bc34.jsline 5 · col 47591
  • https://www.nfl.com/_next/static/chunks/9049-2cb4482fc789bc34.jsline 5 · col 47618
navigator.getBattery1 calls

Frame: https://www.nfl.com/

  • https://www.nfl.com/_next/static/chunks/9049-2cb4482fc789bc34.jsline 5 · col 47784
navigator.language1 calls

Frame: https://www.nfl.com/

  • https://www.nfl.com/_next/static/chunks/3981-d8336dedc2501713.jsline 8 · col 43857
navigator.platform3 calls

Frame: https://www.nfl.com/

  • https://www.nfl.com/_next/static/chunks/9049-2cb4482fc789bc34.jsline 5 · col 67693
navigator.userAgent19 calls

Frame: https://www.nfl.com/

  • https://www.nfl.com/_next/static/chunks/3981-d8336dedc2501713.jsline 8 · col 43833
  • https://www.nfl.com/_next/static/chunks/3981-d8336dedc2501713.jsline 13 · col 2550
  • https://www.nfl.com/_next/static/chunks/3981-d8336dedc2501713.jsline 68 · col 17566
  • https://www.nfl.com/_next/static/chunks/3981-d8336dedc2501713.jsline 68 · col 17589
  • https://www.nfl.com/_next/static/chunks/9049-2cb4482fc789bc34.jsline 1 · col 80732
screen.height1 calls

Frame: https://www.nfl.com/

  • https://www.nfl.com/_next/static/chunks/9049-2cb4482fc789bc34.jsline 1 · col 48860
screen.width1 calls

Frame: https://www.nfl.com/

  • https://www.nfl.com/_next/static/chunks/9049-2cb4482fc789bc34.jsline 1 · col 48910
window.devicePixelRatio2 calls

Frame: https://www.nfl.com/

  • https://www.nfl.com/_next/static/chunks/9049-2cb4482fc789bc34.jsline 1 · col 48793
  • https://www.nfl.com/_next/static/chunks/9049-2cb4482fc789bc34.jsline 1 · col 48875
Providers, script signatures, and DNS 1 provider labels

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

  • Google Adssecurepubads.g.doubleclick.net
Network and worker observations 169 requests
Captured scripts
27
Instrumented frames
1
Google Ads observed
Yes
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

  • assets.adobedtm.com
  • cdn.adsafeprotected.com
  • cdn.cookielaw.org
  • cdn.onesignal.com
  • imasdk.googleapis.com
  • p.nfltags.com
  • securepubads.g.doubleclick.net
  • www.riddle.com
Source record and integrity
Original source
results/headful/nfl-com-20261022T233254.json
Original file SHA-256
8114141874416ff2fd8cbb86d6510b67eb846c4010ff7a85c910f540f8c20638

Run ID: headful-811414187441. The JSON contains sanitized observations, not the original private scan payload.

Other scan attempts (6)

Visitor setup

Navigation failed

Navigation failed

Canvas: UnmeasuredWebGL: UnmeasuredAudio: UnmeasuredFonts: UnmeasuredDevice: Unmeasured
Measurement
Navigation failed
Page context
Page not measured
Scan time
2026-10-21T23:28:03.386341Z
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/nfl-com-20261021T232803.json
Original file SHA-256
211d87fbb55b4f99c58470321d3c373b499d3d66ab01fcae05ba034d9e0895f9

Run ID: headful-211d87fbb55b. 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
2026-10-22T15:13:34.528090Z
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/nfl-com-20261022T151334.json
Original file SHA-256
08ae626dc97b8c86b54da479a00dc5be8387be979a7727894a448f3044c25850

Run ID: headful-08ae626dc97b. 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
2026-10-22T15:13:35.140318Z
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/nfl-com-20261022T151335.json
Original file SHA-256
555b0a564d548bbed289919e6484e2b4bf825cccd942a39b7afce6940f2645a4

Run ID: headful-555b0a564d54. 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
2026-10-22T20:42:25.887903Z
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/nfl-com-20261022T204225.json
Original file SHA-256
81304230049f1d4276f6ec1bb9979c397bf4eabe2471b87586ef80a30d03d724

Run ID: headful-81304230049f. 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
2026-10-22T22:05:50.540446Z
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/nfl-com-20261022T220550.json
Original file SHA-256
7237920f9856172a12965cf8a980aade38a96d721fd1a9d069d0388db4a275b7

Run ID: headful-7237920f9856. 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
2026-10-22T23:32:53.535740Z
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/nfl-com-20261022T233253.json
Original file SHA-256
c73268f6716120b533b45de4e3a89d20498e77563885b7cb3d83d5805be9f929

Run ID: headful-c73268f67161. The JSON contains sanitized observations, not the original private scan payload.

Research setup

Signals observed

1 of 5 signal families observed

Canvas: Not observedWebGL: Not observedAudio: Not observedFonts: Not observedDevice: Observed
Measurement
Measured
Page context
Page document
Scan time
2026-10-22T22:56:56.139206Z
Browser / scanner
156.0.8078.4 / 0.4

Captured titleNFL.com | Official Site of the National Football League

CanvasDraws text and reads canvas output.2 API entries

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

canvas.getContext1 calls

Frame: https://nfl.demdex.net/dest5.html

  • Inline caller recorded
canvas.getContext1 calls

Frame: https://www.nfl.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.8 API entries

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

navigator.deviceMemory2 calls

Frame: https://www.nfl.com/

  • https://www.nfl.com/_next/static/chunks/9049-2cb4482fc789bc34.jsline 5 · col 47591
  • https://www.nfl.com/_next/static/chunks/9049-2cb4482fc789bc34.jsline 5 · col 47618
navigator.getBattery1 calls

Frame: https://www.nfl.com/

  • https://www.nfl.com/_next/static/chunks/9049-2cb4482fc789bc34.jsline 5 · col 47784
navigator.language1 calls

Frame: https://www.nfl.com/

  • https://www.nfl.com/_next/static/chunks/3981-d8336dedc2501713.jsline 8 · col 43857
navigator.platform3,138 calls

Frame: https://www.nfl.com/

  • https://www.nfl.com/_next/static/chunks/9049-2cb4482fc789bc34.jsline 5 · col 67693
navigator.userAgent3,218 calls

Frame: https://www.nfl.com/

  • https://www.nfl.com/_next/static/chunks/3981-d8336dedc2501713.jsline 8 · col 43833
  • https://www.nfl.com/_next/static/chunks/3981-d8336dedc2501713.jsline 13 · col 2550
  • https://www.nfl.com/_next/static/chunks/3981-d8336dedc2501713.jsline 68 · col 17566
  • https://www.nfl.com/_next/static/chunks/3981-d8336dedc2501713.jsline 68 · col 17589
  • https://www.nfl.com/_next/static/chunks/9049-2cb4482fc789bc34.jsline 1 · col 80732
screen.height2 calls

Frame: https://www.nfl.com/

  • https://assets.adobedtm.com/[redacted-id]/[redacted-id]/launch-53368d199d70.min.jsline 12 · col 7259
  • https://www.nfl.com/_next/static/chunks/9049-2cb4482fc789bc34.jsline 1 · col 48860
screen.width2 calls

Frame: https://www.nfl.com/

  • https://assets.adobedtm.com/[redacted-id]/[redacted-id]/launch-53368d199d70.min.jsline 12 · col 7250
  • https://www.nfl.com/_next/static/chunks/9049-2cb4482fc789bc34.jsline 1 · col 48910
window.devicePixelRatio2 calls

Frame: https://www.nfl.com/

  • https://www.nfl.com/_next/static/chunks/9049-2cb4482fc789bc34.jsline 1 · col 48793
  • https://www.nfl.com/_next/static/chunks/9049-2cb4482fc789bc34.jsline 1 · col 48875
Providers, script signatures, and DNS 1 provider labels

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

  • Google Adssecurepubads.g.doubleclick.net

CNAME delegation

  • adobedc.demdex.net → demdex.net.ssl.sc.omtrdc.net

DNS delegation identifies infrastructure; it does not prove which browser code ran.

Network and worker observations 337 requests
Captured scripts
33
Instrumented frames
2
Google Ads observed
Yes
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

  • adobedc.demdex.net
  • api.onesignal.com
  • assets.adobedtm.com
  • cdn.adsafeprotected.com
  • cdn.cookielaw.org
  • cdn.onesignal.com
  • cm.everesttech.net
  • dpm.demdex.net
  • imasdk.googleapis.com
  • nfl.demdex.net
  • p.nfltags.com
  • pixel.everesttech.net
  • securepubads.g.doubleclick.net
  • www.riddle.com
Other recorded API calls 4
  • document.cookie.read7 calls
  • document.cookie.read148 calls
  • document.cookie.write3 calls
  • document.cookie.write32 calls
Source record and integrity
Original source
results/headless/nfl-com-20261022T225656.json
Original file SHA-256
526067d2a86fb39c5d4c8cccbb936a6d6746e68c35feb63849b845510a3a01e3

Run ID: research-526067d2a86f. The JSON contains sanitized observations, not the original private scan payload.

Other scan attempts (3)

Research setup

Navigation failed

Navigation failed

Canvas: UnmeasuredWebGL: UnmeasuredAudio: UnmeasuredFonts: UnmeasuredDevice: Unmeasured
Measurement
Navigation failed
Page context
Page not measured
Scan time
2026-10-21T21:34:38.105143Z
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/nfl-com-20261021T213438.json
Original file SHA-256
fef816f2d7923840820a72d3c53d512a2d9778bde684124b9143599a2a57e0ba

Run ID: research-fef816f2d792. The JSON contains sanitized observations, not the original private scan payload.

Research setup

Scanner error

Scanner error

Canvas: UnmeasuredWebGL: UnmeasuredAudio: UnmeasuredFonts: UnmeasuredDevice: Unmeasured
Measurement
Scanner error
Page context
Page not measured
Scan time
2026-10-22T18:35:34.950505Z
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/headless/nfl-com-20261022T183534.json
Original file SHA-256
b6b99e18a491de168397b1662c6835fc87adec32b7dcc92cf931609c7a3b3cd1

Run ID: research-b6b99e18a491. 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
2026-10-22T18:35:35.053316Z
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/nfl-com-20261022T183535.json
Original file SHA-256
e9d3da03eca999bd0b0435f2fd99e2434ca22c319e57a12038cdc493a997003b

Run ID: research-e9d3da03eca9. 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 →