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Website evidence · pilot dataset

Does usa.gov 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 5 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
2026-10-22T16:55:05.557306Z
Browser / scanner
156.0.8078.4 / 0.4

Captured titleMaking government services easier to find | USAGov

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.usa.gov/

  • 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.5 API entries

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

navigator.language5 calls

Frame: https://www.usa.gov/

  • https://www.googletagmanager.com/gtag/js
  • https://www.googletagmanager.com/gtm.js
navigator.platform1 calls

Frame: https://www.usa.gov/

  • https://www.usa.gov/sites/default/files/js/js_ZYd5e_pZpMBBLNKC-2LiUveokuVaWbCWJIIUES7JXus.js
navigator.userAgent137 calls

Frame: https://www.usa.gov/

  • https://www.googletagmanager.com/gtag/js
  • https://www.googletagmanager.com/gtm.js
  • https://www.usa.gov/sites/default/files/js/js_ZYd5e_pZpMBBLNKC-2LiUveokuVaWbCWJIIUES7JXus.js
screen.height6 calls

Frame: https://www.usa.gov/

  • https://siteimproveanalytics.com/js/siteanalyze_51567.jsline 1 · col 6563
  • https://www.googletagmanager.com/gtag/js
  • https://www.googletagmanager.com/gtm.js
screen.width6 calls

Frame: https://www.usa.gov/

  • https://siteimproveanalytics.com/js/siteanalyze_51567.jsline 1 · col 6544
  • https://www.googletagmanager.com/gtag/js
  • https://www.googletagmanager.com/gtm.js
Providers, script signatures, and DNS 3 provider labels

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

  • Crazy Eggscript.crazyegg.com
  • Google Analyticswww.google-analytics.com
  • Google Tag Managerwww.googletagmanager.com
Network and worker observations 71 requests
Captured scripts
14
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

  • 51567.global.siteimproveanalytics.io
  • dap.digitalgov.gov
  • gov1.siteintercept.qualtrics.com
  • s3-us-gov-west-1.amazonaws.com
  • script.crazyegg.com
  • siteimproveanalytics.com
  • www.google-analytics.com
  • www.google.com
  • www.googletagmanager.com
  • znbabnroqffo1d7xq-cemgsa.gov1.siteintercept.qualtrics.com
Other recorded API calls 2
  • document.cookie.read75 calls
  • document.cookie.write13 calls
Source record and integrity
Original source
results/headful/usa-gov-20261022T165505.json
Original file SHA-256
4172d7697a1a1e04f25ed1386a549fc049166ce53045d6b622fc31d749d02c74

Run ID: headful-4172d7697a1a. The JSON contains sanitized observations, not the original private scan payload.

Other scan attempts (1)

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
2026-10-21T22:55:29.542677Z
Browser / scanner
156.0.8078.4 / 0.3

Captured titleMaking government services easier to find | USAGov

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.usa.gov/

  • 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.5 API entries

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

navigator.language4 calls

Frame: https://www.usa.gov/

  • https://www.googletagmanager.com/gtag/js
  • https://www.googletagmanager.com/gtm.js
navigator.platform1 calls

Frame: https://www.usa.gov/

  • https://www.usa.gov/sites/default/files/js/js_ZYd5e_pZpMBBLNKC-2LiUveokuVaWbCWJIIUES7JXus.js
navigator.userAgent137 calls

Frame: https://www.usa.gov/

  • https://www.googletagmanager.com/gtag/js
  • https://www.googletagmanager.com/gtm.js
  • https://www.usa.gov/sites/default/files/js/js_ZYd5e_pZpMBBLNKC-2LiUveokuVaWbCWJIIUES7JXus.js
screen.height5 calls

Frame: https://www.usa.gov/

  • https://siteimproveanalytics.com/js/siteanalyze_51567.jsline 1 · col 6563
  • https://www.googletagmanager.com/gtag/js
  • https://www.googletagmanager.com/gtm.js
screen.width5 calls

Frame: https://www.usa.gov/

  • https://siteimproveanalytics.com/js/siteanalyze_51567.jsline 1 · col 6544
  • https://www.googletagmanager.com/gtag/js
  • https://www.googletagmanager.com/gtm.js
Providers, script signatures, and DNS 3 provider labels

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

  • Crazy Eggscript.crazyegg.com
  • Google Analyticswww.google-analytics.com
  • Google Tag Managerwww.googletagmanager.com
Network and worker observations 45 requests
Captured scripts
14
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

  • 51567.global.siteimproveanalytics.io
  • dap.digitalgov.gov
  • gov1.siteintercept.qualtrics.com
  • s3-us-gov-west-1.amazonaws.com
  • script.crazyegg.com
  • siteimproveanalytics.com
  • www.google-analytics.com
  • www.googletagmanager.com
  • znbabnroqffo1d7xq-cemgsa.gov1.siteintercept.qualtrics.com
Other recorded API calls 2
  • document.cookie.read55 calls
  • document.cookie.write11 calls
Source record and integrity
Original source
results/headful/usa-gov-20261021T225529.json
Original file SHA-256
0217f714abe839c2a7d63bc43d924383219c113bfaf449d89adc14413f983729

Run ID: headful-0217f714abe8. 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
2026-10-23T00:11:15.916288Z
Browser / scanner
156.0.8078.4 / 0.4

Captured titleMaking government services easier to find | USAGov

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.usa.gov/

  • 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.5 API entries

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

navigator.language5 calls

Frame: https://www.usa.gov/

  • https://www.googletagmanager.com/gtag/js
  • https://www.googletagmanager.com/gtm.js
navigator.platform1 calls

Frame: https://www.usa.gov/

  • https://www.usa.gov/sites/default/files/js/js_ZGXsyij6EHXutoIdO-qwA_SiJCcaIxE4BVhb0ygfDC4.js
navigator.userAgent133 calls

Frame: https://www.usa.gov/

  • https://www.googletagmanager.com/gtag/js
  • https://www.googletagmanager.com/gtm.js
  • https://www.usa.gov/sites/default/files/js/js_ZGXsyij6EHXutoIdO-qwA_SiJCcaIxE4BVhb0ygfDC4.js
screen.height5 calls

Frame: https://www.usa.gov/

  • https://www.googletagmanager.com/gtag/js
  • https://www.googletagmanager.com/gtm.js
screen.width5 calls

Frame: https://www.usa.gov/

  • https://www.googletagmanager.com/gtag/js
  • https://www.googletagmanager.com/gtm.js
Providers, script signatures, and DNS 3 provider labels

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

  • Crazy Eggscript.crazyegg.com
  • Google Analyticswww.google-analytics.com
  • Google Tag Managerwww.googletagmanager.com
Network and worker observations 59 requests
Captured scripts
11
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

  • dap.digitalgov.gov
  • gov1.siteintercept.qualtrics.com
  • s3-us-gov-west-1.amazonaws.com
  • script.crazyegg.com
  • siteimproveanalytics.com
  • www.google-analytics.com
  • www.googletagmanager.com
  • znbabnroqffo1d7xq-cemgsa.gov1.siteintercept.qualtrics.com
Other recorded API calls 2
  • document.cookie.read52 calls
  • document.cookie.write12 calls
Source record and integrity
Original source
results/headless/usa-gov-20261023T001115.json
Original file SHA-256
c7141bd1f8c44d8eedf285514b562974c81b7c18bc10b15517de165d579ae70b

Run ID: research-c7141bd1f8c4. The JSON contains sanitized observations, not the original private scan payload.

Other scan attempts (2)

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
2026-10-21T21:13:41.525045Z
Browser / scanner
156.0.8078.4 / 0.3

Captured titleMaking government services easier to find | USAGov

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.usa.gov/

  • 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.5 API entries

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

navigator.language4 calls

Frame: https://www.usa.gov/

  • https://www.googletagmanager.com/gtag/js
  • https://www.googletagmanager.com/gtm.js
navigator.platform1 calls

Frame: https://www.usa.gov/

  • https://www.usa.gov/sites/default/files/js/js_ZYd5e_pZpMBBLNKC-2LiUveokuVaWbCWJIIUES7JXus.js
navigator.userAgent133 calls

Frame: https://www.usa.gov/

  • https://www.googletagmanager.com/gtag/js
  • https://www.googletagmanager.com/gtm.js
  • https://www.usa.gov/sites/default/files/js/js_ZYd5e_pZpMBBLNKC-2LiUveokuVaWbCWJIIUES7JXus.js
screen.height5 calls

Frame: https://www.usa.gov/

  • https://siteimproveanalytics.com/js/siteanalyze_51567.jsline 1 · col 6563
  • https://www.googletagmanager.com/gtag/js
  • https://www.googletagmanager.com/gtm.js
screen.width5 calls

Frame: https://www.usa.gov/

  • https://siteimproveanalytics.com/js/siteanalyze_51567.jsline 1 · col 6544
  • https://www.googletagmanager.com/gtag/js
  • https://www.googletagmanager.com/gtm.js
Providers, script signatures, and DNS 3 provider labels

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

  • Crazy Eggscript.crazyegg.com
  • Google Analyticswww.google-analytics.com
  • Google Tag Managerwww.googletagmanager.com
Network and worker observations 44 requests
Captured scripts
14
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

  • 51567.global.siteimproveanalytics.io
  • dap.digitalgov.gov
  • gov1.siteintercept.qualtrics.com
  • s3-us-gov-west-1.amazonaws.com
  • script.crazyegg.com
  • siteimproveanalytics.com
  • www.google-analytics.com
  • www.googletagmanager.com
  • znbabnroqffo1d7xq-cemgsa.gov1.siteintercept.qualtrics.com
Other recorded API calls 2
  • document.cookie.read54 calls
  • document.cookie.write12 calls
Source record and integrity
Original source
results/headless/usa-gov-20261021T211341.json
Original file SHA-256
079e442482e00a568c7ffe02ba9877ab1c2b58e6c5d558cc62dace9a84e09eea

Run ID: research-079e442482e0. 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
2026-10-22T19:15:55.806835Z
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/usa-gov-20261022T191555.json
Original file SHA-256
3016423a985874f0accb1c548756f40700d45bd5fa0037c163a0dd297bc91afa

Run ID: research-3016423a9858. 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 →