Website evidence · pilot dataset

Does reuters.com fingerprint you?

Fingerprinting indicators observed.

The latest measured scans include canvas drawing and readback by the same script. This is a fingerprinting indicator, not proof of tracking intent or transmission.

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

Draw + readback

3 of 5 signal families observed

Measurement: Measured
Page context: Page document
Scan time: 2026-10-22T15:28:50.271891Z
Browser / scanner: 156.0.8078.4 / 0.4

Captured titlereuters.com

CanvasDraws text and reads canvas output.7 API entries

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

canvas.getContext1 calls

Inline caller recorded

canvas.getContext8 calls

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

Inline caller recorded
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 90628
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 184431
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 252498
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 597806

canvas.getContext1 calls

Frame: https://www.reuters.com/

Inline caller recorded

canvas.toDataURL7 calls

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

https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 560663

canvas2d.fillText3 calls

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

https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 559173
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 559825

canvas2d.getImageData1 calls

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

https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 252498

canvas2d.measureText3 calls

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

https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 185181

WebGLQueries the graphics environment.3 API entries

Observed requires at least three distinct WebGL probing APIs. Guide ↗

webglrenderingcontext.getExtension1 calls

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

https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 92161

webglrenderingcontext.getParameter2 calls

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

https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 92213
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 92246

webglrenderingcontext.readPixels1 calls

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

https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 252498

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.1 API entries

Observed requires at least ten text-measurement calls. Guide ↗

canvas2d.measureText3 calls

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

https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 185181

DeviceReads browser and display properties.24 API entries

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

navigator.deviceMemory3 calls

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

https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 155312
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 230065

navigator.getBattery1 calls

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

https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 145016

navigator.hardwareConcurrency1 calls

Inline caller recorded

navigator.hardwareConcurrency6 calls

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

https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 86585
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 87233
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 132235
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 132405
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 229788

navigator.language1 calls

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

https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 220752

navigator.languages1 calls

Inline caller recorded

navigator.languages1 calls

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

https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 229678

navigator.maxTouchPoints1 calls

Inline caller recorded

navigator.maxTouchPoints9 calls

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

https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 85801
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 86867
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 87327
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 132296
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 229926

navigator.mimeTypes9 calls

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

https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 153611
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 153798
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 153871
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 153910
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 157083

navigator.platform1 calls

Inline caller recorded

navigator.platform1 calls

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

https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 229840

navigator.plugins26 calls

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

https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 157016
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 157046
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 217252
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 217561
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 217619

navigator.userAgent1 calls

Inline caller recorded

navigator.userAgent8 calls

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

https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 131095
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 161677
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 212980
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 213752
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 229767

navigator.userAgent3 calls

Frame: https://www.reuters.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

navigator.webdriver2 calls

Inline caller recorded

navigator.webdriver2 calls

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

https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 229811
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 252498

screen.availHeight2 calls

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

https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 216652
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 216686

screen.availWidth2 calls

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

https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 216579
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 216623

screen.colorDepth1 calls

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

https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 216781

screen.height3 calls

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

https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 216752
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 216934
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 252498

screen.width3 calls

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

https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 216715
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 216887
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 252498

window.devicePixelRatio2 calls

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

https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 216964
https://ct.captcha-delivery.com/captcha.1.36.0.jsline 2 · col 252498

Scripts with both text drawing and canvas readback 1

These source URLs appear in both call groups. Aggregated logs do not preserve the full execution sequence or establish the purpose of the collection.

https://ct.captcha-delivery.com/captcha.1.36.0.js

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
https://ct.captcha-delivery.com/captcha.1.36.0.jsDataDome · 4 API patterns

Network and worker observations 9 requests

Captured scripts: 2
Instrumented frames: 3
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

Other recorded API calls 2

document.cookie.read1 calls
document.cookie.write2 calls

Source record and integrity

Original source: results/headful/reuters-com-20261022T152850.json
Original file SHA-256: cdf4baeee9850168a75ba6c9811c99cc13240022a005bab3ef89467111445dd3

Run ID: headful-cdf4baeee985. The JSON contains sanitized observations, not the original private scan payload.

Other scan attempts (3)

Visitor setup

Signals observed

1 of 5 signal families observed

Measurement: Measured
Page context: Page document
Scan time: Not recorded
Browser / scanner: Unknown browser / Unversioned

Captured titleReuters | Breaking International News & Views

CanvasDraws text and reads canvas output.1 API entries

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

canvas.getContext3 calls

Inline caller recorded
https://dd.reuters.com/tags.jsline 2 · col 126733
https://html-load.cc/script/ao5k3fWblPCJ3_KJ2PFSye2RVCW0.jsline 2 · col 459417

WebGLQueries the graphics environment.2 API entries

Observed requires at least three distinct WebGL probing APIs. Guide ↗

webglrenderingcontext.getExtension1 calls

https://dd.reuters.com/tags.jsline 2 · col 127166

webglrenderingcontext.getParameter4 calls

https://dd.reuters.com/tags.jsline 2 · col 127339
https://dd.reuters.com/tags.jsline 2 · col 127363
https://html-load.cc/script/ao5k3fWblPCJ3_KJ2PFSye2RVCW0.jsline 2 · col 459543
https://html-load.cc/script/ao5k3fWblPCJ3_KJ2PFSye2RVCW0.jsline 2 · col 459575

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.18 API entries

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

navigator.deviceMemory3 calls

https://dd.reuters.com/tags.jsline 2 · col 91967
https://dd.reuters.com/tags.jsline 2 · col 125015

navigator.doNotTrack2 calls

https://cdn.cookielaw.org/scripttemplates/202609.1.0/otBannerSdk.jsline 7 · col 541264
https://cdn.cookielaw.org/scripttemplates/202609.1.0/otBannerSdk.jsline 7 · col 541292

navigator.getBattery1 calls

https://dd.reuters.com/tags.jsline 2 · col 76418

navigator.hardwareConcurrency1 calls

https://dd.reuters.com/tags.jsline 2 · col 124707

navigator.language5 calls

https://dd.reuters.com/tags.jsline 2 · col 107733
https://html-load.cc/script/ao5k3fWblPCJ3_KJ2PFSye2RVCW0.jsline 2 · col 457289
https://web-sdk-cdn.singular.net/singular-sdk/latest/singular-sdk.jsline 9 · col 126318
https://www.datadoghq-browser-agent.com/datadog-rum-v6.jsline 1 · col 108323
https://www.reuters.com/pf/resources/dist/static/chunks/shared-misc-0861105a799d18198d75.js

navigator.languages9 calls

https://cdn.cookielaw.org/scripttemplates/202609.1.0/otBannerSdk.jsline 7 · col 47047
https://cdn.cookielaw.org/scripttemplates/202609.1.0/otBannerSdk.jsline 7 · col 47068
https://cdn.cookielaw.org/scripttemplates/202609.1.0/otBannerSdk.jsline 7 · col 47095
https://dd.reuters.com/tags.jsline 2 · col 125196
https://www.datadoghq-browser-agent.com/datadog-rum-v6.jsline 1 · col 108350

navigator.maxTouchPoints1 calls

https://dd.reuters.com/tags.jsline 2 · col 124894

navigator.mimeTypes11 calls

https://dd.reuters.com/tags.jsline 2 · col 92447
https://dd.reuters.com/tags.jsline 2 · col 92476
https://dd.reuters.com/tags.jsline 2 · col 95214
https://dd.reuters.com/tags.jsline 2 · col 95408
https://dd.reuters.com/tags.jsline 2 · col 95507

navigator.platform7 calls

https://dd.reuters.com/tags.jsline 2 · col 113785
https://dd.reuters.com/tags.jsline 2 · col 124749
https://static.chartbeat.com/js/chartbeat_video.jsline 9 · col 69
https://web-sdk-cdn.singular.net/singular-sdk/latest/singular-sdk.jsline 9 · col 94288

navigator.plugins35 calls

https://dd.reuters.com/tags.jsline 2 · col 92382
https://dd.reuters.com/tags.jsline 2 · col 92411
https://dd.reuters.com/tags.jsline 2 · col 101858
https://dd.reuters.com/tags.jsline 2 · col 101886
https://dd.reuters.com/tags.jsline 2 · col 101947

navigator.userAgent140 calls

https://dd.reuters.com/tags.jsline 2 · col 102793
https://dd.reuters.com/tags.jsline 2 · col 103667
https://dd.reuters.com/tags.jsline 2 · col 103722
https://dd.reuters.com/tags.jsline 2 · col 124687
https://www.reuters.com/arc/subs/p.min.jsline 6 · col 59858

navigator.webdriver3 calls

https://dd.reuters.com/tags.jsline 2 · col 124729
https://html-load.cc/script/ao5k3fWblPCJ3_KJ2PFSye2RVCW0.jsline 2 · col 459229
https://html-load.cc/script/ao5k3fWblPCJ3_KJ2PFSye2RVCW0.jsline 2 · col 459280

screen.availHeight2 calls

https://dd.reuters.com/tags.jsline 2 · col 83681
https://dd.reuters.com/tags.jsline 2 · col 83717

screen.availWidth2 calls

https://dd.reuters.com/tags.jsline 2 · col 83617
https://dd.reuters.com/tags.jsline 2 · col 83653

screen.colorDepth5 calls

https://dd.reuters.com/tags.jsline 2 · col 83801
https://static.chartbeat.com/js/chartbeat_video.jsline 9 · col 128

screen.height8 calls

https://dd.reuters.com/tags.jsline 2 · col 83773
https://dd.reuters.com/tags.jsline 2 · col 83926
https://static.chartbeat.com/js/chartbeat_video.jsline 9 · col 119
https://web-sdk-cdn.singular.net/singular-sdk/latest/singular-sdk.jsline 9 · col 115775

screen.width8 calls

https://dd.reuters.com/tags.jsline 2 · col 83745
https://dd.reuters.com/tags.jsline 2 · col 83888
https://static.chartbeat.com/js/chartbeat_video.jsline 9 · col 111
https://web-sdk-cdn.singular.net/singular-sdk/latest/singular-sdk.jsline 9 · col 115817

window.devicePixelRatio4 calls

https://dd.reuters.com/tags.jsline 2 · col 83956
https://www.datadoghq-browser-agent.com/datadog-rum-v6.jsline 1 · col 111651

Providers, script signatures, and DNS 4 provider labels

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

Chartbeat (analytics)mab.chartbeat.com, static.chartbeat.com
Google Adscm.g.doubleclick.net
Google Tag Managerwww.googletagmanager.com
Permutive (audience platform)api.permutive.app, cdn.permutive.app, cdn.permutive.com

Static script signatures

https://dd.reuters.com/tags.jsDataDome · 2 API patterns

CNAME delegation

dd.reuters.com → dd.reuters.com.first-party-js.datadome.co

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

Network and worker observations 416 requests

Captured scripts: 26
Instrumented frames: Not recorded
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

a.pub.network
a55a84b3-9632-4869-b625-3d8ef43ed18d.prmutv.co
aax.amazon-adsystem.com
ak.sail-horizon.com
amplify.outbrain.com
api.permutive.app
api.sail-personalize.com
b-code.liadm.com
cdn.cookielaw.org
cdn.jwplayer.com
cdn.permutive.app
cdn.permutive.com
cdn.segment.com
client.px-cloud.net
cloudfront-us-east-2.images.arcpublishing.com
cm.g.doubleclick.net
connect.facebook.net
ct.captcha-delivery.com
d.turn.com
geo.captcha-delivery.com
geolocation.onetrust.com
he.lijit.com
html-load.cc
i.liadm.com
ib.adnxs.com
img.en25.com
js.adsrvr.org
mab.chartbeat.com
match.adsrvr.org
outerwords.com
ping.chartbeat.net
rp.liadm.com
rp4.liadm.com
s.yimg.com
s2124157686.t.eloqua.com
sdk-api-v1.singular.net
siteintercept.qualtrics.com
snap.licdn.com
static.adsafeprotected.com
static.captcha-delivery.com
static.chartbeat.com
thrtle.com
tru.am
web-sdk-cdn.singular.net
www.datadoghq-browser-agent.com
www.dianomi.com
www.googletagmanager.com
www.redditstatic.com
zn8qfk42azo5fsr2r-trdigital.siteintercept.qualtrics.com

Other recorded API calls 2

document.cookie.read216 calls
document.cookie.write49 calls

Source record and integrity

Original source: results/headful/reuters-com.json
Original file SHA-256: 9c6829e1652b29d95b9076728232ee3016983f98796e21a2887505b8a7d58b12

Run ID: headful-9c6829e1652b. The JSON contains sanitized observations, not the original private scan payload.

Visitor setup

Signals observed

1 of 5 signal families observed

Measurement: Measured
Page context: Page document
Scan time: 2026-10-19T02:46:21.488633Z
Browser / scanner: 156.0.8078.4 / 0.3

Captured titleReuters | Breaking International News & Views

CanvasDraws text and reads canvas output.3 API entries

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

canvas.getContext1 calls

https://cdn.cookielaw.org/opt-out/otCCPAiab.jsline 69 · col 10

canvas.getContext1 calls

https://cdn.cookielaw.org/scripttemplates/otSDKStub.jsline 1 · col 40250

canvas.getContext1 calls

Frame: https://www.reuters.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.18 API entries

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

navigator.deviceMemory3 calls

Frame: https://www.reuters.com/

https://dd.reuters.com/tags.jsline 2 · col 91967
https://dd.reuters.com/tags.jsline 2 · col 125015

navigator.doNotTrack2 calls

Frame: https://www.reuters.com/

https://cdn.cookielaw.org/scripttemplates/202609.1.0/otBannerSdk.jsline 7 · col 541264
https://cdn.cookielaw.org/scripttemplates/202609.1.0/otBannerSdk.jsline 7 · col 541292

navigator.getBattery1 calls

Frame: https://www.reuters.com/

https://dd.reuters.com/tags.jsline 2 · col 76418

navigator.hardwareConcurrency1 calls

Frame: https://www.reuters.com/

https://dd.reuters.com/tags.jsline 2 · col 124707

navigator.language2 calls

Frame: https://www.reuters.com/

https://dd.reuters.com/tags.jsline 2 · col 107733
https://www.reuters.com/pf/resources/dist/static/chunks/shared-misc-0861105a799d18198d75.js

navigator.languages7 calls

Frame: https://www.reuters.com/

https://cdn.cookielaw.org/scripttemplates/202609.1.0/otBannerSdk.jsline 7 · col 47047
https://cdn.cookielaw.org/scripttemplates/202609.1.0/otBannerSdk.jsline 7 · col 47068
https://cdn.cookielaw.org/scripttemplates/202609.1.0/otBannerSdk.jsline 7 · col 47095
https://dd.reuters.com/tags.jsline 2 · col 125196

navigator.maxTouchPoints1 calls

Frame: https://www.reuters.com/

https://dd.reuters.com/tags.jsline 2 · col 124894

navigator.mimeTypes9 calls

Frame: https://www.reuters.com/

https://dd.reuters.com/tags.jsline 2 · col 92447
https://dd.reuters.com/tags.jsline 2 · col 92476
https://dd.reuters.com/tags.jsline 2 · col 95214
https://dd.reuters.com/tags.jsline 2 · col 95408
https://dd.reuters.com/tags.jsline 2 · col 95507

navigator.platform2 calls

Frame: https://www.reuters.com/

https://dd.reuters.com/tags.jsline 2 · col 113785
https://dd.reuters.com/tags.jsline 2 · col 124749

navigator.plugins26 calls

Frame: https://www.reuters.com/

https://dd.reuters.com/tags.jsline 2 · col 92382
https://dd.reuters.com/tags.jsline 2 · col 92411
https://dd.reuters.com/tags.jsline 2 · col 101858
https://dd.reuters.com/tags.jsline 2 · col 101886
https://dd.reuters.com/tags.jsline 2 · col 101947

navigator.userAgent48 calls

Frame: https://www.reuters.com/

https://dd.reuters.com/tags.jsline 2 · col 102793
https://dd.reuters.com/tags.jsline 2 · col 124687
https://tru.am/scripts/ta-pagesocial-sdk.jsline 2 · col 3201
https://www.reuters.com/arc/subs/p.min.jsline 6 · col 59858
https://www.reuters.com/pf/resources/dist/static/chunks/shared-misc-0861105a799d18198d75.js

navigator.webdriver1 calls

Frame: https://www.reuters.com/

https://dd.reuters.com/tags.jsline 2 · col 124729

screen.availHeight2 calls

Frame: https://www.reuters.com/

https://dd.reuters.com/tags.jsline 2 · col 83681
https://dd.reuters.com/tags.jsline 2 · col 83717

screen.availWidth2 calls

Frame: https://www.reuters.com/

https://dd.reuters.com/tags.jsline 2 · col 83617
https://dd.reuters.com/tags.jsline 2 · col 83653

screen.colorDepth1 calls

Frame: https://www.reuters.com/

https://dd.reuters.com/tags.jsline 2 · col 83801

screen.height2 calls

Frame: https://www.reuters.com/

https://dd.reuters.com/tags.jsline 2 · col 83773
https://dd.reuters.com/tags.jsline 2 · col 83926

screen.width2 calls

Frame: https://www.reuters.com/

https://dd.reuters.com/tags.jsline 2 · col 83745
https://dd.reuters.com/tags.jsline 2 · col 83888

window.devicePixelRatio1 calls

Frame: https://www.reuters.com/

https://dd.reuters.com/tags.jsline 2 · col 83956

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

Static script signatures

https://www.reuters.com/pf/resources/dist/static/chunks/shared-misc-0861105a799d18198d75.jsreCAPTCHA · 0 API patterns

CNAME delegation

dd.reuters.com → dd.reuters.com.first-party-js.datadome.co

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

Network and worker observations 68 requests

Captured scripts: 27
Instrumented frames: 3
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

a.pub.network
cdn.cookielaw.org
cloudfront-us-east-2.images.arcpublishing.com
geolocation.onetrust.com
tru.am
www.googletagmanager.com

Other recorded API calls 2

document.cookie.read95 calls
document.cookie.write19 calls

Source record and integrity

Original source: results/headful/reuters-com-20261019T024621.json
Original file SHA-256: 984d1a3a6d564cfe75f42a860d7b18c3d99ec6893d34396044ac353d3153039c

Run ID: headful-984d1a3a6d56. The JSON contains sanitized observations, not the original private scan payload.

Visitor setup

Scanner error

Measurement: Scanner error
Page context: Page not measured
Scan time: 2026-10-22T15:28:48.853031Z
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/reuters-com-20261022T152848.json
Original file SHA-256: 03e456f2937370c20d1a665adfc98e6dba3f323488b9f8b2ef35207b8bec4a98

Run ID: headful-03e456f29373. The JSON contains sanitized observations, not the original private scan payload.

Research setup

Not observed

0 of 5 signal families observed

Measurement: Measured
Page context: Page document
Scan time: 2026-10-22T18:52:54.814491Z
Browser / scanner: 156.0.8078.4 / 0.4

Captured titlereuters.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.reuters.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.reuters.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 7 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/reuters-com-20261022T185254.json
Original file SHA-256: f2a68e414718ef73b9a3aca2c14c907cac671d8bad0ec075137c4f6291d5622d

Run ID: research-f2a68e414718. The JSON contains sanitized observations, not the original private scan payload.

Other scan attempts (2)

Research setup

Not observed

0 of 5 signal families observed

Measurement: Measured
Page context: Page document
Scan time: Not recorded
Browser / scanner: Unknown browser / Unversioned

Captured titlereuters.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 7 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/reuters-com.json
Original file SHA-256: f0e48b4d0e86bba289456b54b1e1ebcd7bb14048011094f21cea930379eb9af1

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

Run ID: research-f0e48b4d0e86. The JSON contains sanitized observations, not the original private scan payload.

Research setup

Not observed

0 of 5 signal families observed

Measurement: Measured
Page context: Page document
Scan time: 2026-10-19T05:55:46.137207Z
Browser / scanner: 156.0.8078.4 / 0.3

Captured titlereuters.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.reuters.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.reuters.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 7 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/reuters-com-20261019T055546.json
Original file SHA-256: ba14efc908443d834a5136fe55fcdb63a03d0c2f3ca85fcc5b485f06d7f9b72a

Run ID: research-ba14efc90844. 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 →

Browser fingerprinting guides

Demos

Self-led privacy

Use cases

Software

Audits

Training

Does reuters.com fingerprint you?

Inside the scan

Draw + readback

Static script signatures

Third-party hosts

Signals observed

Static script signatures

CNAME delegation

Third-party hosts

Signals observed

Static script signatures

CNAME delegation

Third-party hosts

Scanner error

Not observed

Static script signatures

Third-party hosts

Not observed

Third-party hosts

Not observed

Static script signatures

Third-party hosts