Incomplete evidence: evidence was cut short before completion (the in-page fingerprint observer could not read every frame, so the fingerprinting evidence is incomplete). Counts for the affected evidence are lower bounds; families that completed carry only their ordinary limits. The evidence receipt states the exact per-visit quality.
Scan report ready for nodejs.org: 38 recorded request rows.
ShareDownloads the No blocking visit's request CSV, source report and correction context in a ZIP. Follows the evidence switcher below.PDF + evidence (opens in a new tab)Downloads a ZIP containing the PDF for every recorded visit, exact source JSON, correction context and file hashes. The scanner renders it on request.
What this actually means
1 request in this visit matched Brave Shields filter lists.
1 request matched while loading normally. This run records no evaluated-request count, so no match ratio is stated. Matching identifies traffic the lists would target; it does not establish the purpose or payload of an individual request.
The scan observed signals a non-expert should not have to decode from raw request tables. Some detector evidence was incomplete; each affected detector card states its own retained or unavailable scope, while completed request, cookie, and storage measurements keep their recorded exactness.
The cards below translate the evidence into plain language; severity reflects fixed reference thresholds, not measured population percentiles. The request log, domain table, and methodology remain below for verification.
38 requests observed in one controlled visit.
Context
1 request matched Brave Shields filter lists
1 request matched the default filter lists of Brave Shields, the ad and tracker blocker built into the Brave browser, while loading normally.
Computed with Brave's own ad-block engine and default filter lists in classification mode: matched requests were not blocked by the scanner and remain in this report's observed request counts. Matching shows what Shields would target on this visit's traffic; an actual Shields visit blocks these and also prevents their follow-on requests, so this number is neither a measured block count nor the total effect.
The hand-curated service catalog separately matched 0 request rows in this visit.Show matched requests
Low signal
No change observed in the Brave-list blocking attempt
The blocking visit (the scanner configured to apply Brave's ad-block engine and default Shields filter lists (a simulation in this scanner's browser, not a live Brave-browser visit; application was not verified)) showed no change in the comparable metrics (third-party requests, third-party cookies and tracking-related service requests).
The blocking visit's engine directly blocked 1 request; ad rotation, experiments, or caching between the two visits can offset or outweigh what blocking removed, which is how totals can hold steady or rise despite direct blocks. A single paired comparison can also reflect run-to-run variance (ad rotation, caching, experiments), so treat this as no observed difference for this pair of visits, not evidence that blocking removes nothing.
Signed per-metric differences between the two visits; nothing is summed across metrics.Show matched requests
Nothing observed
No known services matched
This scan did not match any third-party domains to the service catalog or another identity source.
The automated visit did not observe third-party cookies.
This does not prove the site never uses cookies; it means this visit did not observe third-party cookies.
0 cookies total in this report.No third-party cookies observed.
Context
Incomplete evidence: No fingerprint-like API calls observed in retained evidence before collection stopped
The scan did not observe the instrumented high-entropy browser APIs.
This is an observation layer, not proof that fingerprinting is impossible. Evidence collection was cut short, so this covers only what was recorded before the cutoff.
Retained incomplete evidence includes 0 API event records; no exact API-family total is available.
Brave Shields Comparison
No blocking → Brave-list blocking delta
No blocking: 1,543msBrave-list blocking: 1,493ms
Some deltas are not comparable across these two visits and are not shown.
Other detector and causal-path deltas (each visit's own evidence still renders below): v1 never recorded detector versions, so fingerprinting and pixel deltas cannot be proven to come from matching instrumentation.
The Shields-number delta (each visit's own evidence still renders below): The two visits measured different Shields quantities (filter-list matches vs engine-blocked requests), which must never share a delta.
Fingerprinting deltas (each visit's own evidence still renders below): At least one visit did not complete the fingerprint measurement, so no exact cross-visit delta is shown.
Ad-pixel deltas (each visit's own evidence still renders below): At least one visit did not complete the pixel measurement, so no exact cross-visit delta is shown.
Every signed change is Brave-list blocking minus No blocking. A positive or negative direction is descriptive, not a judgment that the result is better or worse.
Brave-list blocking comparison runs should be collected under matched crawl conditions, and the blocking run is a simulation with Brave's engine and default lists in this scanner's browser, not a live Brave visit. Differences can still reflect timing, experiments, cache state, consent state, or bot detection.
The two visits ran in randomized order; the "No blocking" visit ran first.
Both visits
Each visit in this report is one automated, headless Chromium visit from a fixed en-US / UTC profile, with no scrolling, clicking, or consent interaction. Sites can behave differently for real users, browsers, regions, accounts, or network locations.
Counts are a lower bound: trackers that load only after interaction or consent are not observed; Service Workers are blocked, and Web Worker or WebSocket traffic may be incomplete. Service labels use a US-biased hand-curated catalog, so regional services may be under-labeled. Cookie and storage figures are an end-of-visit snapshot, with storage keys read from the top frame only.
The in-page fingerprint observer could not read one or more frames, so fingerprint-like API calls and heuristics for this visit are incomplete.
Brave-list blocking visit only
Brave Shields block simulation was enabled; matching requests were aborted before loading and are not included in request totals.
How to use this report
Read the findings and measurement limits first, then inspect the evidence for each recorded visit. Comparisons include both visits, even where a difference cannot be interpreted.
Keep this PDF with its evidence package: the source JSON, correction context, export receipt and SHA256SUMS. The package preserves source bytes and the correction context at export time. Hashes check file consistency; they do not establish independent measurement accuracy or a signed attestation.
2026-09-07T05:15:54.726Z · cut short: the in-page fingerprint observer could not read every frame, so the fingerprinting evidence is incomplete; derived from status and warnings
Retained observations from this visit. Missing measurements do not establish absence of activity.
Request attribution map
Which actor each third-party request is attributed to, from the initiator the browser reported. Attribution, not causation: an initiator may itself have been told what to fetch, and requests with no reported initiator are not distinguished from ones fetched from several. Asterisks mark subdomain labels hidden for privacy.
Attributed requests
0
Not attributable
0
Third-party requests
0
No third-party requests were recorded, so attribution coverage is not applicable.
No retained third-party request has one recorded actor to draw. This is not evidence that no actor was involved: the visit may have reported no actor or several actors for the same request.
By the numbers
Recorded counts and evidence availability from this one visit. The findings above interpret them.
Requests380 third-party
Matched Shields lists1classification reported by this visit; no engine readback recorded
Third-party domains00 distinct catalogued service entities
Every domain this visit recorded, with its role, request count and catalog match.
Domain
Role
Requests
Catalog match
Resource types
nodejs.org
first-party
38
No catalog match
document, font, stylesheet, script, fetch
Request log
38 recorded requests
In hosts and URLs, * and … mark details hidden for privacy.
Request references name this visit's retained JSON rows in order (B = baseline, V = variant, S = single). R0001 is the first request row.
Every request row this visit retained, with its time, status, resource type, domain and recorded provenance.
Ref
Time
Status
Type
Domain
Provenance
URL
B:R0001
50ms
307
document
nodejs.org
Not attributed
https://nodejs.org/
B:R0002
115ms
200
document
nodejs.org
Not attributed
https://nodejs.org/en
B:R0003
176ms
200
font
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
B:R0004
176ms
200
font
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
B:R0005
177ms
200
stylesheet
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
B:R0006
177ms
200
stylesheet
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
B:R0007
179ms
200
stylesheet
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
B:R0008
179ms
200
stylesheet
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
B:R0009
179ms
200
stylesheet
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
B:R0010
182ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
B:R0011
183ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
B:R0012
184ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
B:R0013
186ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
B:R0014
186ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
B:R0015
186ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
B:R0016
187ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
B:R0017
187ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
B:R0018
187ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
B:R0019
187ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
B:R0020
188ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
B:R0021
188ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
B:R0022
188ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
B:R0023
188ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
B:R0024
189ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
B:R0025
191ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
B:R0026
192ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
B:R0027
632ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…
B:R0028
633ms
200
stylesheet
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
B:R0029
634ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
B:R0030
639ms
200
fetch
nodejs.org
initiated by nodejs.org
https://nodejs.org/en/about
B:R0031
639ms
200
fetch
nodejs.org
initiated by nodejs.org
https://nodejs.org/en/download
B:R0032
640ms
200
fetch
nodejs.org
initiated by nodejs.org
https://nodejs.org/en/blog
B:R0033
641ms
200
fetch
nodejs.org
initiated by nodejs.org
https://nodejs.org/en/about/…
B:R0034
645ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…
B:R0035
735ms
200
fetch
nodejs.org
initiated by nodejs.org
https://nodejs.org/en/about/…
B:R0036
741ms
307
fetch
nodejs.org
initiated by nodejs.org
https://nodejs.org/en/…
B:R0037
795ms
308
fetch
nodejs.org
Not attributed
https://nodejs.org/…
B:R0038
866ms
200
fetch
nodejs.org
Not attributed
https://nodejs.org/…
Brave-list blocking — evidence
2026-09-07T05:15:56.274Z · cut short: the in-page fingerprint observer could not read every frame, so the fingerprinting evidence is incomplete; derived from status and warnings
Retained observations from this visit. Missing measurements do not establish absence of activity.
Request attribution map
Which actor each third-party request is attributed to, from the initiator the browser reported. Attribution, not causation: an initiator may itself have been told what to fetch, and requests with no reported initiator are not distinguished from ones fetched from several. Asterisks mark subdomain labels hidden for privacy.
Attributed requests
0
Not attributable
0
Third-party requests
0
No third-party requests were recorded, so attribution coverage is not applicable.
No retained third-party request has one recorded actor to draw. This is not evidence that no actor was involved: the visit may have reported no actor or several actors for the same request.
By the numbers
Recorded counts and evidence availability from this one visit. The findings above interpret them.
Requests370 third-party
Blocked by Brave lists1engine blocks reported by this visit; no engine readback recorded
Third-party domains00 distinct catalogued service entities
Every domain this visit recorded, with its role, request count and catalog match.
Domain
Role
Requests
Catalog match
Resource types
nodejs.org
first-party
37
No catalog match
document, font, stylesheet, script, fetch
Request log
37 recorded requests
In hosts and URLs, * and … mark details hidden for privacy.
Request references name this visit's retained JSON rows in order (B = baseline, V = variant, S = single). R0001 is the first request row.
Every request row this visit retained, with its time, status, resource type, domain and recorded provenance.
Ref
Time
Status
Type
Domain
Provenance
URL
V:R0001
49ms
307
document
nodejs.org
Not attributed
https://nodejs.org/
V:R0002
118ms
200
document
nodejs.org
Not attributed
https://nodejs.org/en
V:R0003
171ms
200
font
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
V:R0004
171ms
200
font
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
V:R0005
172ms
200
stylesheet
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
V:R0006
176ms
200
stylesheet
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
V:R0007
176ms
200
stylesheet
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
V:R0008
177ms
200
stylesheet
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
V:R0009
178ms
200
stylesheet
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
V:R0010
187ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
V:R0011
187ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
V:R0012
188ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
V:R0013
191ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
V:R0014
191ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
V:R0015
192ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
V:R0016
192ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
V:R0017
192ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
V:R0018
193ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
V:R0019
193ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
V:R0020
193ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
V:R0021
194ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
V:R0022
197ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
V:R0023
197ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
V:R0024
198ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
V:R0025
198ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
V:R0026
199ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
V:R0027
679ms
200
stylesheet
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
V:R0028
679ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…/static/…
V:R0029
684ms
200
fetch
nodejs.org
initiated by nodejs.org
https://nodejs.org/en/about
V:R0030
684ms
200
fetch
nodejs.org
initiated by nodejs.org
https://nodejs.org/en/download
V:R0031
685ms
200
fetch
nodejs.org
initiated by nodejs.org
https://nodejs.org/en/blog
V:R0032
686ms
200
fetch
nodejs.org
initiated by nodejs.org
https://nodejs.org/en/about/…
V:R0033
690ms
200
script
nodejs.org
initiated by nodejs.org
https://nodejs.org/…
V:R0034
752ms
200
fetch
nodejs.org
initiated by nodejs.org
https://nodejs.org/en/about/…
V:R0035
757ms
307
fetch
nodejs.org
initiated by nodejs.org
https://nodejs.org/en/…
V:R0036
803ms
308
fetch
nodejs.org
Not attributed
https://nodejs.org/…
V:R0037
832ms
200
fetch
nodejs.org
Not attributed
https://nodejs.org/…
This versioned report is currently retained in the public corpus. Follow the currently retained site history, repeat the same public route when it is available, or request a transparent evidence correction.
cut short: the in-page fingerprint observer could not read every frame, so the fingerprinting evidence is incomplete; derived from status and warnings
Scanner
playwright-chromium
Browser
151.0.7922.34
Redaction
not recorded by this schema
Provenance
Exact build and instrument digests were not recorded by this legacy schema.
Variant visit
Started
Run quality
cut short: the in-page fingerprint observer could not read every frame, so the fingerprinting evidence is incomplete; derived from status and warnings
Scanner
playwright-chromium
Browser
151.0.7922.34
Redaction
not recorded by this schema
Provenance
Exact build and instrument digests were not recorded by this legacy schema.
Recorded provenance is self-reported measurement metadata, not a cryptographic attestation. The public versioned report JSON contains the retained public evidence; see the methodology for interpretation and retention limits.
This report covers what the scanner measures, not everything a site can do. 16 browser surfaces are not instrumented at all (Every page except the one that was scanned; Anything that only loads after scrolling or interaction; Why a request happened, as a causal chain; and 13 others), 3 capabilities are declined by policy, and 3 are outside what any single visit can see. Their absence from this report is not evidence that they did not occur. Read the published coverage boundary.
Detector accuracy is unmeasured. No calibration study currently publishes a precision or recall for the detectors on this page, so a detector match here is a recorded observation, not a calibrated classification. How detector accuracy is measured.
Approved use boundary: This report is investigative evidence that requires independent corroboration. It is not a standalone legal determination and not the sole exhibit in a legal proceeding. Recorded in this project's release manifest on .
Reports record one automated visit per condition; visits may be incomplete. Results describe these visits, not everything a site can do.