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
un.org recorded 6 fewer third-party requests in the visit configured for Brave-list blocking.
The visit with no blocking made 25 requests; the visit 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) recorded 6 fewer third-party requests. The blocker directly stopped 2 requests; the remaining difference may include follow-on requests that never started once their sources were blocked, plus run-to-run variance.
The scan observed signals a non-expert should not have to decode from raw request tables.
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.
25 requests observed in one controlled visit.
Context
6 requests matched Brave Shields filter lists
6 requests 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 6 request rows in this visit.Show matched requests
Nothing observed
Lower values observed across comparable metrics in the Brave-list blocking attempt
With 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), this paired visit showed 6 fewer third-party requests and 6 fewer tracking-related service requests.
Services only seen in the unblocked visit: Google. The blocking visit's engine directly blocked 2 requests; the remaining difference may include follow-on requests that never started once their sources were blocked. A single paired comparison can also reflect run-to-run variance (ad rotation, caching, experiments), so treat this as an observed difference, not a measured blocking rate.
Signed per-metric differences between the two visits; nothing is summed across metrics.Show matched requests
Context
Catalogued service domains recorded responses during this visit
Google appeared in the request log.
A catalog match identifies a maintainer-reviewed service/domain mapping; it does not establish why an individual request occurred, what it carried, or whether profiling happened. Functional catalog labels include analytics / tag management. This scan could not identify 2 of the 7 third-party hosts recorded here, so it cannot say who operates them. That is a limit of identity coverage, not evidence about the site.
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.
5 cookies total in this report.No third-party cookies observed.
Nothing observed
No fingerprint-like API calls observed
The scan did not observe the instrumented high-entropy browser APIs.
This is an observation layer, not proof that fingerprinting is impossible.
0 API families recorded.
Brave Shields Comparison
No blocking → Brave-list blocking delta
No blocking: 1,043msBrave-list blocking: 850ms
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.
Cookie and storage count deltas include every observation. Name-level lists show only reviewed names; unreviewed names are not itemized because they can contain identifiers.
Visible cookie names only with Brave-list blocking
No visible cookie-name changes to show; privacy-filtered names are not itemized.
Visible cookie names only with No blocking
_ga.un.orgfirst-party
_gat.un.orgfirst-party
_gid.un.orgfirst-party
Storage keys only with Brave-list blocking
No storage key changes observed.
Storage keys only with No blocking
No storage key changes observed.
Entities only with Brave-list blocking
No entity changes observed.
Entities only with No blocking
Google3 domains6
Measurement limits
5 conditions affect how this evidence reads
This report
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.
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.
2026-07-25T18:04:38.218Z · complete; 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
11
Third-party requests
11
No unique actor could be assigned to 11 of these requests. That includes requests for which the browser reported no usable initiator, and repeated URLs seen with conflicting initiators. This report does not distinguish those causes, so they are counted together rather than drawn.
11 third-party requests: 0 attributed to a single recorded actor, 11 not attributable.
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.
Requests2511 third-party
Matched Shields lists6classification reported by this visit; no engine readback recorded
Third-party domains71 distinct catalogued service entity
Every domain this visit recorded, with its role, request count and catalog match.
Domain
Role
Requests
Catalog match
Resource types
www.google-analytics.com
service
4
Google: analytics / tag management
script, xhr, fetch
*.google-analytics.com
service
1
Google: analytics / tag management
script
www.googletagmanager.com
service
1
Google: analytics / tag management
script
*.gstatic.com
third-party
2
No catalog match
font
*.bootstrapcdn.com
third-party
1
No catalog match
stylesheet
fonts.googleapis.com
third-party
1
No catalog match
stylesheet
*.jquery.com
third-party
1
No catalog match
script
www.un.org
first-party
14
No catalog match
document, stylesheet, image, script, media
Request log
25 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
45ms
200
document
www.un.org
Not attributed
https://www.un.org/
B:R0002
81ms
200
stylesheet
www.un.org
Not attributed
https://www.un.org/en/…
B:R0003
81ms
200
stylesheet
www.un.org
Not attributed
https://www.un.org/en/…
B:R0004
82ms
200
stylesheet
*.bootstrapcdn.com
Not attributed
https://*.bootstrapcdn.com/…
B:R0005
82ms
200
stylesheet
fonts.googleapis.com
Not attributed
https://fonts.googleapis.com/…?…
B:R0006
82ms
200
stylesheet
www.un.org
Not attributed
https://www.un.org/en/…
B:R0007
84ms
200
stylesheet
www.un.org
Not attributed
https://www.un.org/fr/…
B:R0008
84ms
200
stylesheet
www.un.org
Not attributed
https://www.un.org/fr/…
B:R0009
84ms
200
stylesheet
www.un.org
Not attributed
https://www.un.org/fr/…
B:R0010
84ms
200
script
*.jquery.com
Not attributed
https://*.jquery.com/…
B:R0011
85ms
200
image
www.un.org
Not attributed
https://www.un.org/…
B:R0012
85ms
200
image
www.un.org
Not attributed
https://www.un.org/en/…
B:R0013
114ms
200
script
www.un.org
Not attributed
https://www.un.org/fr/…
B:R0014
131ms
200
script
*.google-analytics.com
Not attributed
https://*.google-analytics.com/…
B:R0015
148ms
200
script
www.google-analytics.com
Not attributed
https://www.google-analytics.com/…
B:R0016
167ms
200
image
www.un.org
Not attributed
https://www.un.org/en/…
B:R0017
168ms
200
image
www.un.org
Not attributed
https://www.un.org/en/…
B:R0018
168ms
404
image
www.un.org
Not attributed
https://www.un.org/en/…
B:R0019
169ms
200
font
*.gstatic.com
Not attributed
https://*.gstatic.com/…
B:R0020
169ms
200
font
*.gstatic.com
Not attributed
https://*.gstatic.com/…
B:R0021
174ms
206
media
www.un.org
Not attributed
https://www.un.org/…
B:R0022
191ms
200
xhr
www.google-analytics.com
Not attributed
https://www.google-analytics.com/…?v&…&t&cid&tid
B:R0023
214ms
200
script
www.googletagmanager.com
Not attributed
https://www.googletagmanager.com/…?id&…
B:R0024
408ms
204
fetch
www.google-analytics.com
Not attributed
https://www.google-analytics.com/…?v&tid&…&cid
B:R0025
409ms
204
fetch
www.google-analytics.com
Not attributed
https://www.google-analytics.com/…?v&tid&…&cid
Brave-list blocking — evidence
2026-07-25T18:04:39.267Z · complete; 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
5
Third-party requests
5
No unique actor could be assigned to 5 of these requests. That includes requests for which the browser reported no usable initiator, and repeated URLs seen with conflicting initiators. This report does not distinguish those causes, so they are counted together rather than drawn.
5 third-party requests: 0 attributed to a single recorded actor, 5 not attributable.
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.
Requests195 third-party
Blocked by Brave lists2engine blocks reported by this visit; no engine readback recorded
Third-party domains40 distinct catalogued service entities
Every domain this visit recorded, with its role, request count and catalog match.
Domain
Role
Requests
Catalog match
Resource types
*.gstatic.com
third-party
2
No catalog match
font
*.bootstrapcdn.com
third-party
1
No catalog match
stylesheet
fonts.googleapis.com
third-party
1
No catalog match
stylesheet
*.jquery.com
third-party
1
No catalog match
script
www.un.org
first-party
14
No catalog match
document, stylesheet, image, script, media
Request log
19 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
50ms
200
document
www.un.org
Not attributed
https://www.un.org/
V:R0002
84ms
200
stylesheet
www.un.org
Not attributed
https://www.un.org/en/…
V:R0003
85ms
200
stylesheet
www.un.org
Not attributed
https://www.un.org/en/…
V:R0004
86ms
200
stylesheet
*.bootstrapcdn.com
Not attributed
https://*.bootstrapcdn.com/…
V:R0005
86ms
200
stylesheet
fonts.googleapis.com
Not attributed
https://fonts.googleapis.com/…?…
V:R0006
86ms
200
stylesheet
www.un.org
Not attributed
https://www.un.org/en/…
V:R0007
87ms
200
stylesheet
www.un.org
Not attributed
https://www.un.org/fr/…
V:R0008
87ms
200
stylesheet
www.un.org
Not attributed
https://www.un.org/fr/…
V:R0009
87ms
200
stylesheet
www.un.org
Not attributed
https://www.un.org/fr/…
V:R0010
89ms
200
script
*.jquery.com
Not attributed
https://*.jquery.com/…
V:R0011
89ms
200
image
www.un.org
Not attributed
https://www.un.org/…
V:R0012
89ms
200
image
www.un.org
Not attributed
https://www.un.org/en/…
V:R0013
125ms
200
script
www.un.org
Not attributed
https://www.un.org/fr/…
V:R0014
163ms
200
image
www.un.org
Not attributed
https://www.un.org/en/…
V:R0015
164ms
200
image
www.un.org
Not attributed
https://www.un.org/en/…
V:R0016
164ms
404
image
www.un.org
Not attributed
https://www.un.org/en/…
V:R0017
165ms
200
font
*.gstatic.com
Not attributed
https://*.gstatic.com/…
V:R0018
167ms
200
font
*.gstatic.com
Not attributed
https://*.gstatic.com/…
V:R0019
168ms
206
media
www.un.org
Not attributed
https://www.un.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.
Exact build and instrument digests were not recorded by this legacy schema.
Variant visit
Started
Run quality
complete; derived from status and warnings
Scanner
playwright-chromium
Browser
149.0.7827.55
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.