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Website evidence · pilot dataset

Does openai.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 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
2026-10-22T15:19:12.134862Z
Browser / scanner
156.0.8078.4 / 0.4

Captured titleOpenAI | Research & Deployment

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://openai.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.3 API entries

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

navigator.language1 calls

Frame: https://openai.com/

  • https://openai.com/_next/static/immutable/chunks/1eyif-ek9p9am.jsline 1 · col 43312
navigator.platform3 calls

Frame: https://openai.com/

  • https://openai.com/_next/static/immutable/chunks/1eyif-ek9p9am.jsline 1 · col 9682
navigator.userAgent77 calls

Frame: https://openai.com/

  • https://openai.com/_next/static/immutable/chunks/0atdqzco56ud-.jsline 1 · col 2878
  • https://openai.com/_next/static/immutable/chunks/0n-6tpkyzicy9.jsline 1 · col 16447
  • https://openai.com/_next/static/immutable/chunks/0u-ac452fq9mx.jsline 12 · col 2642
  • https://openai.com/_next/static/immutable/chunks/10imxta9s9yqr.jsline 1 · col 8409
  • https://openai.com/_next/static/immutable/chunks/3e124o3nw7edd.jsline 31 · col 2874
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 220 requests
Captured scripts
62
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

  • ab.chatgpt.com
  • chatgpt.com
  • images.ctfassets.net
  • static.cloudflareinsights.com
Other recorded API calls 2
  • document.cookie.read7 calls
  • document.cookie.write3 calls
Source record and integrity
Original source
results/headful/openai-com-20261022T151912.json
Original file SHA-256
dbad33c6e757e39f11a15344ed2a64bfa12de461fb819926d7eaaa8fc60bbe70

Run ID: headful-dbad33c6e757. The JSON contains sanitized observations, not the original private scan payload.

Other scan attempts (2)

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
2026-10-21T22:57:54.884877Z
Browser / scanner
156.0.8078.4 / 0.3

Captured titleOpenAI | Research & Deployment

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://openai.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.2 API entries

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

navigator.language1 calls

Frame: https://openai.com/

  • https://openai.com/_next/static/immutable/chunks/1eyif-ek9p9am.jsline 1 · col 43312
navigator.userAgent2 calls

Frame: https://openai.com/

  • https://openai.com/_next/static/immutable/chunks/0n-6tpkyzicy9.jsline 1 · col 16447
  • https://openai.com/_next/static/immutable/chunks/3e124o3nw7edd.jsline 31 · col 2874
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 180 requests
Captured scripts
27
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

  • ab.chatgpt.com
  • chatgpt.com
  • images.ctfassets.net
  • static.cloudflareinsights.com
Other recorded API calls 1
  • document.cookie.read6 calls
Source record and integrity
Original source
results/headful/openai-com-20261021T225754.json
Original file SHA-256
ee56c08aa64817c29ebfb637ad8b8d34f04aded8ee83836a289c1bd0712ef5d4

Run ID: headful-ee56c08aa648. 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
2026-10-22T15:19:11.614279Z
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/openai-com-20261022T151911.json
Original file SHA-256
b78c7290514ed30ef531c3c925ebc42e2bc106f94ab936b96c54247efac28754

Run ID: headful-b78c7290514e. 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
2026-10-22T18:43:43.169137Z
Browser / scanner
156.0.8078.4 / 0.4

Captured titleOpenAI | Research & Deployment

CanvasDraws text and reads canvas output.1 API entries

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

canvas.getContext2 calls

Frame: https://openai.com/

  • Inline caller recorded
  • https://openai.com/_next/static/immutable/chunks/2ihj8j83kvzy5.jsline 1 · col 172321
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.4 API entries

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

navigator.language4 calls

Frame: https://openai.com/

  • https://openai.com/_next/static/immutable/chunks/0ezfn9azljxl8.jsline 1 · col 42469
  • https://openai.com/_next/static/immutable/chunks/1g5ja534pxu_2.jsline 1 · col 45531
navigator.platform3 calls

Frame: https://openai.com/

  • https://openai.com/_next/static/immutable/chunks/0ezfn9azljxl8.jsline 1 · col 9090
navigator.userAgent86 calls

Frame: https://openai.com/

  • https://openai.com/_next/static/immutable/chunks/0nm6vhe4c_931.jsline 1 · col 14528
  • https://openai.com/_next/static/immutable/chunks/0r6suwbaon6s-.jsline 31 · col 2851
  • https://openai.com/_next/static/immutable/chunks/0yqpsb4ookm2m.jsline 12 · col 2459
  • https://openai.com/_next/static/immutable/chunks/1den392fqhgg7.jsline 1 · col 2816
  • https://openai.com/_next/static/immutable/chunks/1sobk81x1rq0u.jsline 1 · col 10854
navigator.webdriver1 calls

Frame: https://openai.com/

  • https://openai.com/_vercel/speed-insights/script.jsline 1 · col 268
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.

Static script signatures

  • https://openai.com/_next/static/immutable/chunks/2lc0pgd0plj8r.jsAPI patterns only · 4 API patterns
Network and worker observations 259 requests
Captured scripts
66
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

  • ab.chatgpt.com
  • chatgpt.com
  • cloudflareinsights.com
  • images.ctfassets.net
  • static.cloudflareinsights.com
  • statsigapi.net
Other recorded API calls 2
  • document.cookie.read31 calls
  • document.cookie.write10 calls
Source record and integrity
Original source
results/headless/openai-com-20261022T184343.json
Original file SHA-256
d355feb6a5cf49b669915e3448cd0353154e185a6a484c50d0688b7a08d18431

Run ID: research-d355feb6a5cf. The JSON contains sanitized observations, not the original private scan payload.

Other scan attempts (1)

Research setup

Navigation failed

Navigation failed

Canvas: UnmeasuredWebGL: UnmeasuredAudio: UnmeasuredFonts: UnmeasuredDevice: Unmeasured
Measurement
Navigation failed
Page context
Page not measured
Scan time
2026-10-21T21:18:15.215331Z
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/openai-com-20261021T211815.json
Original file SHA-256
3aeb109af528bff8c0590407fa2f1e5d15ce49929ee5d35622bf2b06036939be

Run ID: research-3aeb109af528. 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 →