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Website evidence · pilot dataset

Does tripadvisor.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 11 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
2026-10-22T16:49:22.104460Z
Browser / scanner
156.0.8078.4 / 0.4

Captured titletripadvisor.com

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.tripadvisor.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

  • ct.captcha-delivery.com
Source record and integrity
Original source
results/headful/tripadvisor-com-20261022T164922.json
Original file SHA-256
3987b46742989635dbc10c829e28e2c9211e8018843574eadb559e5393918240

Run ID: headful-3987b4674298. 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
Not recorded
Browser / scanner
Unknown browser / Unversioned

Captured titletripadvisor.com

CanvasDraws text and reads canvas output.1 API entries

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

canvas.getContext1 calls
  • 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.userAgent3 calls
  • https://ct.captcha-delivery.com/c.jsline 49 · col 59
  • https://ct.captcha-delivery.com/c.jsline 286 · col 30
  • https://ct.captcha-delivery.com/c.jsline 287 · col 23
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://ct.captcha-delivery.com/c.jsDataDome · 0 API patterns
Network and worker observations 8 requests
Captured scripts
1
Instrumented frames
Not recorded
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

  • ct.captcha-delivery.com
  • geo.captcha-delivery.com
  • static.captcha-delivery.com
Source record and integrity
Original source
results/headful/tripadvisor-com.json
Original file SHA-256
b2b3cf73c66a7d63d1f423e5276a7c0717ca4b2a2e9f71dd63cb363f148506e4

Run ID: headful-b2b3cf73c66a. The JSON contains sanitized observations, not the original private scan payload.

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
2026-10-19T06:16:45.624112Z
Browser / scanner
156.0.8078.4 / 0.3

Captured titletripadvisor.com

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://geo.captcha-delivery.com/[redacted-challenge]

  • Inline caller recorded
canvas.getContext1 calls

Frame: https://www.tripadvisor.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.1 API entries

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

navigator.userAgent3 calls

Frame: https://www.tripadvisor.com/

  • https://ct.captcha-delivery.com/c.jsline 49 · col 59
  • https://ct.captcha-delivery.com/c.jsline 286 · col 30
  • https://ct.captcha-delivery.com/c.jsline 287 · col 23
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://ct.captcha-delivery.com/c.jsDataDome · 0 API patterns
Network and worker observations 8 requests
Captured scripts
1
Instrumented frames
2
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

  • ct.captcha-delivery.com
  • geo.captcha-delivery.com
  • static.captcha-delivery.com
Source record and integrity
Original source
results/headful/tripadvisor-com-20261019T061645.json
Original file SHA-256
7c33b12ee3c0f85196cd3eb129ccaab73df45525a4a5b03664f5625495380831

Run ID: headful-7c33b12ee3c0. 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
2026-10-22T16:49:21.529227Z
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/tripadvisor-com-20261022T164921.json
Original file SHA-256
fcf71cb4c484520d7696f4b43a7eecb56f78dc5f412d93b78903cc12c50fff64

Run ID: headful-fcf71cb4c484. 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
2026-10-23T01:12:47.387203Z
Browser / scanner
156.0.8078.4 / 0.4

Captured titletripadvisor.com

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://geo.captcha-delivery.com/[redacted-challenge]

  • Inline caller recorded
canvas.getContext1 calls

Frame: https://www.tripadvisor.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.1 API entries

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

navigator.userAgent3 calls

Frame: https://www.tripadvisor.com/

  • https://ct.captcha-delivery.com/c.jsline 49 · col 59
  • https://ct.captcha-delivery.com/c.jsline 286 · col 30
  • https://ct.captcha-delivery.com/c.jsline 287 · col 23
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://ct.captcha-delivery.com/c.jsDataDome · 0 API patterns
Network and worker observations 8 requests
Captured scripts
1
Instrumented frames
2
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

  • ct.captcha-delivery.com
  • geo.captcha-delivery.com
  • static.captcha-delivery.com
Source record and integrity
Original source
results/headless/tripadvisor-com-20261023T011247.json
Original file SHA-256
77d903285ce62cff5503cb652a468ec73b988637ca9b19f4f6c91945dd7259a6

Run ID: research-77d903285ce6. The JSON contains sanitized observations, not the original private scan payload.

Other scan attempts (6)

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
Not recorded
Browser / scanner
Unknown browser / Unversioned

Captured titletripadvisor.com

CanvasDraws text and reads canvas output.1 API entries

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

canvas.getContext1 calls
  • 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.userAgent3 calls
  • https://ct.captcha-delivery.com/c.jsline 49 · col 59
  • https://ct.captcha-delivery.com/c.jsline 286 · col 30
  • https://ct.captcha-delivery.com/c.jsline 287 · col 23
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 8 requests
Captured scripts
0
Instrumented frames
Not recorded
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

  • ct.captcha-delivery.com
  • geo.captcha-delivery.com
  • static.captcha-delivery.com
Source record and integrity
Original source
results/headless/tripadvisor-com.json
Original file SHA-256
606e49cf7a3e9151a9b1de12073ed2c570afafa856270baba660320f6dd1f53a

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

Run ID: research-606e49cf7a3e. 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
2026-10-19T05:57:39.290139Z
Browser / scanner
156.0.8078.4 / 0.3

Captured titletripadvisor.com

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://geo.captcha-delivery.com/[redacted-challenge]

  • Inline caller recorded
canvas.getContext1 calls

Frame: https://www.tripadvisor.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.1 API entries

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

navigator.userAgent3 calls

Frame: https://www.tripadvisor.com/

  • https://ct.captcha-delivery.com/c.jsline 49 · col 59
  • https://ct.captcha-delivery.com/c.jsline 286 · col 30
  • https://ct.captcha-delivery.com/c.jsline 287 · col 23
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://ct.captcha-delivery.com/c.jsDataDome · 0 API patterns
Network and worker observations 8 requests
Captured scripts
1
Instrumented frames
2
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

  • ct.captcha-delivery.com
  • geo.captcha-delivery.com
  • static.captcha-delivery.com
Source record and integrity
Original source
results/headless/tripadvisor-com-20261019T055739.json
Original file SHA-256
146ad7e2ba4e5c4155dccb9f3c0135129af514a874f59665ee33bcaffa75ff4d

Run ID: research-146ad7e2ba4e. 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
2026-10-22T19:11:49.963293Z
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/tripadvisor-com-20261022T191149.json
Original file SHA-256
9caaee8c3595d419e9e6e4e8fd427d8e16396199b4ad50f0d572ad1f3ef0b1c6

Run ID: research-9caaee8c3595. 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
2026-10-23T00:08:51.426686Z
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/tripadvisor-com-20261023T000851.json
Original file SHA-256
26b3639bd2752827eba8468e8ad34dad81a692df2502d10fda445e9aefcaf989

Run ID: research-26b3639bd275. 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
2026-10-23T00:32:31.850999Z
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/tripadvisor-com-20261023T003231.json
Original file SHA-256
a3de4ae0aff54604b85a30165e3c6677bc1b41d1fa1a8de49a53d55835d8c519

Run ID: research-a3de4ae0aff5. 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
2026-10-23T00:43:50.596892Z
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/tripadvisor-com-20261023T004350.json
Original file SHA-256
1679d9b53a505ceef3b995cf7832f6d10e927498421b8e888ef909b9df6ffe05

Run ID: research-1679d9b53a50. 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 →