SBL-CORR-2026-001: The historical input-probe disclosure overstates coverage. Unload-only transmissions were not reliably recorded. Focus and blur handlers could run, and per-field failures were not fully counted. These reports cannot establish absence of input transmission outside their retained observations.
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
chase.com recorded 2 fewer third-party requests in the visit configured for Brave-list blocking.
SBL-CORR-2026-001: The historical input-probe disclosure overstates coverage. Unload-only transmissions were not reliably recorded. Focus and blur handlers could run, and per-field failures were not fully counted. These reports cannot establish absence of input transmission outside their retained observations.
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.
54 requests observed in one controlled visit.
Context
2 requests matched Brave Shields filter lists
2 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 0 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 2 fewer third-party requests.
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
Privacy policy read; it made no statement this scan can check
None of the statements this scan knows how to check appear in the policy text, so nothing was compared against this visit's evidence (no catalogued tracking companies observed to check against it). That is a limit of the automated check, not a finding about the site either way.
Statements checked automatically: blanket no-cookie claims, third-party-cookie claims, and combined do-not-sell-or-share claims against advertising-pixel identifier fields. Global Privacy Control claims are never checked against request counts, which cannot show whether selling or sharing stopped.
Policy at https://www.chase.com/{seg}/{seg}/{seg}/privacy/{seg}; 0 checkable statements matched; no catalogued tracking companies observed to check against it.
Context
No known services matched
This scan did not match any third-party domains to the service catalog or another identity source.
No known operator or catalog entity was matched. This scan could not identify 2 of the 2 third-party hosts recorded here, so it cannot say who operates them. That is a limit of identity coverage, not evidence about the site.
These heuristics look for behavior patterns such as canvas readback after drawing, repeated canvas font measurement, WebGL entropy reads, offline audio rendering, or WebRTC peer-connection setup. They are review prompts for this visit, not proof of cross-site identity tracking.
2 canvases matched; reads: canvas.toDataURL, 1 offline render with audio.OfflineAudioContext.createOscillator and audio.OfflineAudioContext.startRendering, 218 measureText calls across up to 92 fonts; measured text contents are not stored and 9 parameter reads and 1 pixel readback; parameters: webgl.getParameter.UNMASKED_RENDERER_WEBGL and webgl.getParameter.UNMASKED_VENDOR_WEBGL, plus 1 other
Brave Shields Comparison
No blocking → Brave-list blocking delta
No blocking: 7,244msBrave-list blocking: 9,512ms
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
No visible cookie-name changes to show; privacy-filtered names are not itemized.
Visible storage keys only with Brave-list blocking
No visible storage-key changes to show; privacy-filtered keys are not itemized.
Visible storage keys only with No blocking
No visible storage-key changes to show; privacy-filtered keys are not itemized.
Entities only with Brave-list blocking
No entity changes observed.
Entities only with No blocking
No entity changes observed.
Measurement limits
8 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 "Brave-list 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.
Blocked a request that could not be verified as public: https://{label}.chase.com/{seg}/api/{seg}/{seg}/{seg}
This scan typed a synthetic test value into 2 form fields (never submitting the form) to test whether typed input is captured and sent to third parties. The value is synthetic and is not stored. Requests the page sent during and after this typing, including any unload beacons, are part of the recorded request log and counts.
Read the site's privacy policy (https://www.chase.com/{seg}/{seg}/{seg}/privacy/{seg}) and compared its text against this visit's observed behavior. Policy checks are an automated text match with the matched sentences quoted, not a legal reading.
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.
2026-07-27T08:51:42.098Z · 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
4
Third-party requests
4
No unique actor could be assigned to 4 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.
4 third-party requests: 0 attributed to a single recorded actor, 4 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.
Requests544 third-party
Matched Shields lists2classification reported by this visit; no engine readback recorded
Third-party domains20 distinct catalogued service entities
Every domain this visit recorded, with its role, request count and catalog match.
Domain
Role
Requests
Catalog match
Resource types
*.go-mpulse.net
third-party
2
No catalog match
script, xhr
static.chasecdn.com
third-party
2
No catalog match
fetch, script
www.chase.com
first-party
38
No catalog match
document, stylesheet, image, script, fetch
*.chase.com
first-party
12
No catalog match
font, script, other, xhr, fetch, ping
Request log
54 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.chase.com
Not attributed
https://www.chase.com/
B:R0002
343ms
200
font
*.chase.com
Not attributed
https://*.chase.com/…
B:R0003
343ms
200
font
*.chase.com
Not attributed
https://*.chase.com/…
B:R0004
344ms
200
font
*.chase.com
Not attributed
https://*.chase.com/…
B:R0005
344ms
200
font
*.chase.com
Not attributed
https://*.chase.com/…
B:R0006
344ms
200
font
*.chase.com
Not attributed
https://*.chase.com/…
B:R0007
345ms
200
stylesheet
www.chase.com
Not attributed
https://www.chase.com/…/static/…
B:R0008
345ms
200
stylesheet
www.chase.com
Not attributed
https://www.chase.com/…/static/…
B:R0009
345ms
200
stylesheet
www.chase.com
Not attributed
https://www.chase.com/…/static/…
B:R0010
345ms
200
stylesheet
www.chase.com
Not attributed
https://www.chase.com/…/static/…
B:R0011
345ms
200
stylesheet
www.chase.com
Not attributed
https://www.chase.com/…/static/…
B:R0012
346ms
200
script
*.chase.com
Not attributed
https://*.chase.com/…
B:R0013
346ms
200
other
*.chase.com
Not attributed
https://*.chase.com/…
B:R0014
346ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0015
413ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
B:R0016
413ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
B:R0017
414ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
B:R0018
414ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
B:R0019
415ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…/app/…
B:R0020
415ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
B:R0021
415ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
B:R0022
416ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
B:R0023
416ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
B:R0024
416ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
B:R0025
416ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…/app/…
B:R0026
419ms
200
script
*.go-mpulse.net
Not attributed
https://*.go-mpulse.net/…
B:R0027
693ms
200
fetch
static.chasecdn.com
Not attributed
https://static.chasecdn.com/…
B:R0028
694ms
200
fetch
www.chase.com
Not attributed
https://www.chase.com/…
B:R0029
770ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…
B:R0030
771ms
200
script
static.chasecdn.com
Not attributed
https://static.chasecdn.com/…
B:R0031
806ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0032
824ms
200
xhr
*.chase.com
Not attributed
https://*.chase.com/…
B:R0033
825ms
200
fetch
*.chase.com
Not attributed
https://*.chase.com/…
B:R0034
826ms
200
fetch
*.chase.com
Not attributed
https://*.chase.com/…
B:R0035
868ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0036
869ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0037
870ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0038
870ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0039
870ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0040
871ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…/home
B:R0041
871ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0042
871ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0043
872ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0044
873ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0045
873ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0046
901ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0047
902ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0048
902ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0049
902ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0050
930ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…
B:R0051
954ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0052
1,037ms
200
script
*.chase.com
Not attributed
https://*.chase.com/…
B:R0053
1,039ms
204
xhr
*.go-mpulse.net
Not attributed
https://*.go-mpulse.net/api/…?…&t&v
B:R0054
5,161ms
n/a
ping
*.chase.com
Not attributed
https://*.chase.com/…
Brave-list blocking — evidence
2026-07-27T08:51:32.569Z · 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
2
Third-party requests
2
No unique actor could be assigned to 2 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.
2 third-party requests: 0 attributed to a single recorded actor, 2 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.
Requests522 third-party
Blocked by Brave lists2engine blocks reported by this visit; no engine readback recorded
Third-party domains10 distinct catalogued service entities
Every domain this visit recorded, with its role, request count and catalog match.
Domain
Role
Requests
Catalog match
Resource types
static.chasecdn.com
third-party
2
No catalog match
fetch, script
www.chase.com
first-party
38
No catalog match
document, stylesheet, image, script, fetch
*.chase.com
first-party
12
No catalog match
font, script, other, xhr, fetch, ping
Request log
52 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
2,600ms
200
document
www.chase.com
Not attributed
https://www.chase.com/
V:R0002
2,852ms
200
font
*.chase.com
Not attributed
https://*.chase.com/…
V:R0003
2,852ms
200
font
*.chase.com
Not attributed
https://*.chase.com/…
V:R0004
2,852ms
200
font
*.chase.com
Not attributed
https://*.chase.com/…
V:R0005
2,853ms
200
font
*.chase.com
Not attributed
https://*.chase.com/…
V:R0006
2,855ms
200
font
*.chase.com
Not attributed
https://*.chase.com/…
V:R0007
2,855ms
200
stylesheet
www.chase.com
Not attributed
https://www.chase.com/…/static/…
V:R0008
2,871ms
200
stylesheet
www.chase.com
Not attributed
https://www.chase.com/…/static/…
V:R0009
2,871ms
200
stylesheet
www.chase.com
Not attributed
https://www.chase.com/…/static/…
V:R0010
2,872ms
200
stylesheet
www.chase.com
Not attributed
https://www.chase.com/…/static/…
V:R0011
2,872ms
200
stylesheet
www.chase.com
Not attributed
https://www.chase.com/…/static/…
V:R0012
2,873ms
200
script
*.chase.com
Not attributed
https://*.chase.com/…
V:R0013
2,873ms
200
other
*.chase.com
Not attributed
https://*.chase.com/…
V:R0014
2,873ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0015
2,941ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
V:R0016
2,942ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
V:R0017
2,942ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
V:R0018
2,943ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
V:R0019
2,943ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…/app/…
V:R0020
2,944ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
V:R0021
2,944ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
V:R0022
2,945ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
V:R0023
2,945ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
V:R0024
2,946ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
V:R0025
2,946ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…/app/…
V:R0026
3,221ms
200
fetch
static.chasecdn.com
Not attributed
https://static.chasecdn.com/…
V:R0027
3,222ms
200
fetch
www.chase.com
Not attributed
https://www.chase.com/…
V:R0028
3,311ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…
V:R0029
3,311ms
200
script
static.chasecdn.com
Not attributed
https://static.chasecdn.com/…
V:R0030
3,349ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0031
3,391ms
200
xhr
*.chase.com
Not attributed
https://*.chase.com/…
V:R0032
3,394ms
200
fetch
*.chase.com
Not attributed
https://*.chase.com/…
V:R0033
3,398ms
200
fetch
*.chase.com
Not attributed
https://*.chase.com/…
V:R0034
3,423ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0035
3,427ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0036
3,428ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0037
3,429ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0038
3,429ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0039
3,431ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…/home
V:R0040
3,433ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0041
3,434ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0042
3,435ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0043
3,442ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0044
3,443ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0045
3,461ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…
V:R0046
3,471ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0047
3,498ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0048
3,499ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0049
3,499ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0050
3,575ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0051
3,602ms
200
script
*.chase.com
Not attributed
https://*.chase.com/…
V:R0052
7,229ms
n/a
ping
*.chase.com
Not attributed
https://*.chase.com/…
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.