Skip to main content

Website evidence · pilot dataset

Does reddit.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. 2 older runs have no recorded timestamp; missing provenance stays unknown. 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
Page context
Page document
Scan time
2026-10-22T15:27:15.047577Z
Browser / scanner
156.0.8078.4 / 0.4

Captured titleReddit - The heart of the internet

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.reddit.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.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 1 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
Network and worker observations 29 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

  • emoji.redditmedia.com
  • external-preview.redd.it
  • i.redd.it
  • id.rlcdn.com
  • preview.redd.it
  • styles.redditmedia.com
  • www.googletagmanager.com
  • www.redditstatic.com
Source record and integrity
Original source
results/headful/reddit-com-20261022T152715.json
Original file SHA-256
5ebfbf2673489412dda2b215012f3ebefdea64a1a7fe00b69e33744d4716a8ad

Run ID: headful-5ebfbf267348. The JSON contains sanitized observations, not the original private scan payload.

Other scan attempts (3)

Visitor setup

Scanner error

Scanner error

Canvas: UnmeasuredWebGL: UnmeasuredAudio: UnmeasuredFonts: UnmeasuredDevice: Unmeasured
Measurement
Scanner error
Page context
Page not measured
Scan time
Not recorded
Browser / scanner
Unknown browser / Unversioned
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/reddit-com.json
Original file SHA-256
61eed9daaa07f3e6be2a4c3e48229a8fc425af0b9310b4e35e02584bf88da493

Run ID: headful-61eed9daaa07. The JSON contains sanitized observations, not the original private scan payload.

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
2026-10-19T06:10:11.192049Z
Browser / scanner
156.0.8078.4 / 0.3

Captured titleReddit - The heart of the internet

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.reddit.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.5 API entries

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

navigator.maxTouchPoints1 calls

Frame: https://www.reddit.com/

  • https://www.redditstatic.com/js/concat
navigator.userAgent3 calls

Frame: https://www.reddit.com/

  • https://www.redditstatic.com/js/concat
screen.height7 calls

Frame: https://www.reddit.com/

  • https://www.redditstatic.com/js/concat
screen.width7 calls

Frame: https://www.reddit.com/

  • https://www.redditstatic.com/js/concat
window.devicePixelRatio6 calls

Frame: https://www.reddit.com/

  • https://www.redditstatic.com/js/concat
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 Tag Managerwww.googletagmanager.com
Network and worker observations 83 requests
Captured scripts
1
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

  • cf.preview.redd.it
  • emoji.redditmedia.com
  • i.redd.it
  • id.rlcdn.com
  • styles.redditmedia.com
  • www.googletagmanager.com
  • www.redditstatic.com
Other recorded API calls 2
  • document.cookie.read14 calls
  • document.cookie.write1 calls
Source record and integrity
Original source
results/headful/reddit-com-20261019T061011.json
Original file SHA-256
99a7882f042e8c4192aefafbb908e3e270455fcf7d68d414448c0acc810675a3

Run ID: headful-99a7882f042e. 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
2026-10-22T15:27:14.049659Z
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/reddit-com-20261022T152714.json
Original file SHA-256
7c942f8d230066f7049fe4d3cb189a326065c36412435bda9096f9a1a7d9e844

Run ID: headful-7c942f8d2300. 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
2026-10-22T18:50:52.218893Z
Browser / scanner
156.0.8078.4 / 0.4
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.reddit.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.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 3 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

    Source record and integrity
    Original source
    results/headless/reddit-com-20261022T185052.json
    Original file SHA-256
    0b1a031b4df30086262d9e860f5d7fdd532235ddf46304ac5577ce0e088aed2d

    Run ID: research-0b1a031b4df3. The JSON contains sanitized observations, not the original private scan payload.

    Other scan attempts (2)

    Research setup

    Scanner error

    Scanner error

    Canvas: UnmeasuredWebGL: UnmeasuredAudio: UnmeasuredFonts: UnmeasuredDevice: Unmeasured
    Measurement
    Scanner error
    Page context
    Page not measured
    Scan time
    Not recorded
    Browser / scanner
    Unknown browser / Unversioned
    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/reddit-com.json
    Original file SHA-256
    a45d1da401b1382936cb2cfa04951f2e007e4b871f49c11969da008a332ecbd8

    The research mode is inferred from the archive folder because this legacy record has no mode field.

    Run ID: research-a45d1da401b1. 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
    2026-10-19T05:55:26.464607Z
    Browser / scanner
    156.0.8078.4 / 0.3
    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.reddit.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.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 3 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

      Source record and integrity
      Original source
      results/headless/reddit-com-20261019T055526.json
      Original file SHA-256
      6fe3efc8cf9bdbb1a8a3463504d319f7c5cf4fe7f220669469309d9689b0f137

      Run ID: research-6fe3efc8cf9b. 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 →