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.
Incomplete evidence: evidence was cut short before completion (the Worker instrumentation could not record every request, so the request 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 www.chase.com: 54 recorded request rows.
The selected visit did not finish collecting request evidence. Request counts are lower bounds; Run quality records the reason.
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 triggered fingerprint-like browser API patterns.
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. Some activity evidence was also incomplete: request counts are retained lower bounds.
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.
at least 54 retained requests observed in one controlled visit.
Context
at least 2 retained requests matched Brave Shields filter lists
at least 2 retained 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 at least 0 retained request rows in this visit.Show matched requests
Context
This Shields comparison is not conclusive
The "No blocking" visit reported GPC Worker capture loss, so its request evidence is incomplete. and The "Brave-list blocking" visit reported GPC Worker capture loss, so its request evidence is incomplete.
The raw request logs of both visits remain below for transparency, but the diff between them supports no claim about what the compared condition changed.
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. Evidence collection was cut short, so this covers only what was recorded before the cutoff.
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
Incomplete evidence: No known services matched in retained evidence before collection stopped
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. Evidence collection was cut short, so this covers only what was recorded before the cutoff.
at least 4 retained cross-site requests across at least 2 retained third-party hosts.Show third-party requests
Context
Incomplete evidence: No requests to major-platform domains were recorded in retained evidence before collection stopped
No requests to catalogued Google, Meta, TikTok, X, Microsoft, LinkedIn, or Pinterest domains were observed in this visit.
Major-platform domains were not observed in this single passive visit; interaction-gated requests could still load for real users. Evidence collection was cut short, so this covers only what was recorded before the cutoff.
Incomplete evidence: No Google Analytics observed in retained evidence before collection stopped
This visit did not contact Google Analytics.
Neither Google Analytics nor its remarketing sync was observed in this visit. Evidence collection was cut short, so this covers only what was recorded before the cutoff.
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, 200 measureText calls across up to 92 fonts; measured text contents are not stored and 35 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 and Brave-list blocking: two visits, no comparable metric delta
No blocking: 6,608msBrave-list blocking: 8,329ms
These two visits do not support a side-by-side comparison, so no deltas are shown.
The "No blocking" visit reported GPC Worker capture loss, so its request evidence is incomplete.
The "Brave-list blocking" visit reported GPC Worker capture loss, so its request evidence is incomplete.
Each visit's own evidence still stands: use the “Evidence shown” switcher below to inspect either visit's tables, and both visits are in the downloaded JSON.
Measurement limits
9 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.
The scan blocked or could not verify one or more Web Workers while applying the simulated GPC signal; request evidence may be 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.
2026-07-21T20:33:41.130Z · cut short: the Worker instrumentation could not record every request, so the request 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
Incomplete
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.
The retained rows establish no useful floor for requests with one recorded actor. Request capture was incomplete, so every count is a lower bound and no coverage percentage is reported.
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.
Requests≥54≥4 retained third-party
Matched Shields lists≥2classification reported by this visit; no engine readback recorded
Third-party domains≥20 distinct catalogued service entities retained
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
These are retained domain rows, not a complete inventory.
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
49ms
200
document
www.chase.com
Not attributed
https://www.chase.com/
B:R0002
128ms
200
font
*.chase.com
Not attributed
https://*.chase.com/…
B:R0003
129ms
200
font
*.chase.com
Not attributed
https://*.chase.com/…
B:R0004
131ms
200
font
*.chase.com
Not attributed
https://*.chase.com/…
B:R0005
131ms
200
font
*.chase.com
Not attributed
https://*.chase.com/…
B:R0006
131ms
200
font
*.chase.com
Not attributed
https://*.chase.com/…
B:R0007
131ms
200
stylesheet
www.chase.com
Not attributed
https://www.chase.com/…/static/…
B:R0008
131ms
200
stylesheet
www.chase.com
Not attributed
https://www.chase.com/…/static/…
B:R0009
132ms
200
stylesheet
www.chase.com
Not attributed
https://www.chase.com/…/static/…
B:R0010
132ms
200
stylesheet
www.chase.com
Not attributed
https://www.chase.com/…/static/…
B:R0011
132ms
200
stylesheet
www.chase.com
Not attributed
https://www.chase.com/…/static/…
B:R0012
133ms
200
script
*.chase.com
Not attributed
https://*.chase.com/…
B:R0013
133ms
200
other
*.chase.com
Not attributed
https://*.chase.com/…
B:R0014
133ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0015
206ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
B:R0016
208ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
B:R0017
208ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
B:R0018
209ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
B:R0019
209ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…/app/…
B:R0020
209ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
B:R0021
209ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
B:R0022
211ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
B:R0023
211ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
B:R0024
213ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
B:R0025
213ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…/app/…
B:R0026
217ms
200
script
*.go-mpulse.net
Not attributed
https://*.go-mpulse.net/…
B:R0027
263ms
204
xhr
*.go-mpulse.net
Not attributed
https://*.go-mpulse.net/api/…?…&t&v
B:R0028
450ms
200
fetch
static.chasecdn.com
Not attributed
https://static.chasecdn.com/…
B:R0029
451ms
200
fetch
www.chase.com
Not attributed
https://www.chase.com/…
B:R0030
548ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…
B:R0031
549ms
200
script
static.chasecdn.com
Not attributed
https://static.chasecdn.com/…
B:R0032
594ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0033
634ms
200
xhr
*.chase.com
Not attributed
https://*.chase.com/…
B:R0034
636ms
200
fetch
*.chase.com
Not attributed
https://*.chase.com/…
B:R0035
640ms
200
fetch
*.chase.com
Not attributed
https://*.chase.com/…
B:R0036
672ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0037
672ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0038
673ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0039
673ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0040
673ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0041
674ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…/home
B:R0042
674ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0043
674ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0044
675ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0045
675ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0046
675ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0047
707ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…
B:R0048
767ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0049
780ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0050
782ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0051
782ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0052
818ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
B:R0053
862ms
200
script
*.chase.com
Not attributed
https://*.chase.com/…
B:R0054
4,510ms
n/a
ping
*.chase.com
Not attributed
https://*.chase.com/…
This log contains retained rows only; collection did not produce a complete request inventory.
Brave-list blocking — evidence
2026-07-21T20:33:32.782Z · cut short: the Worker instrumentation could not record every request, so the request 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
Incomplete
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.
The retained rows establish no useful floor for requests with one recorded actor. Request capture was incomplete, so every count is a lower bound and no coverage percentage is reported.
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.
Requests≥53≥2 retained third-party
Blocked by Brave lists≥2engine blocks reported by this visit; no engine readback recorded
Third-party domains≥10 distinct catalogued service entities retained
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
39
No catalog match
document, stylesheet, image, script, fetch
*.chase.com
first-party
12
No catalog match
font, script, other, xhr, fetch, ping
These are retained domain rows, not a complete inventory.
Request log
53 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
1,592ms
200
document
www.chase.com
Not attributed
https://www.chase.com/
V:R0002
1,677ms
200
font
*.chase.com
Not attributed
https://*.chase.com/…
V:R0003
1,678ms
200
font
*.chase.com
Not attributed
https://*.chase.com/…
V:R0004
1,678ms
200
font
*.chase.com
Not attributed
https://*.chase.com/…
V:R0005
1,681ms
200
font
*.chase.com
Not attributed
https://*.chase.com/…
V:R0006
1,682ms
200
font
*.chase.com
Not attributed
https://*.chase.com/…
V:R0007
1,682ms
200
stylesheet
www.chase.com
Not attributed
https://www.chase.com/…/static/…
V:R0008
1,699ms
200
stylesheet
www.chase.com
Not attributed
https://www.chase.com/…/static/…
V:R0009
1,700ms
200
stylesheet
www.chase.com
Not attributed
https://www.chase.com/…/static/…
V:R0010
1,700ms
200
stylesheet
www.chase.com
Not attributed
https://www.chase.com/…/static/…
V:R0011
1,701ms
200
stylesheet
www.chase.com
Not attributed
https://www.chase.com/…/static/…
V:R0012
1,701ms
200
script
*.chase.com
Not attributed
https://*.chase.com/…
V:R0013
1,702ms
200
other
*.chase.com
Not attributed
https://*.chase.com/…
V:R0014
1,702ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0015
1,775ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
V:R0016
1,782ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
V:R0017
1,783ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
V:R0018
1,784ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
V:R0019
1,785ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…/app/…
V:R0020
1,786ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
V:R0021
1,787ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
V:R0022
1,788ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
V:R0023
1,788ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
V:R0024
1,789ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…
V:R0025
1,789ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…/static/…/app/…
V:R0026
2,061ms
200
fetch
static.chasecdn.com
Not attributed
https://static.chasecdn.com/…
V:R0027
2,062ms
200
fetch
www.chase.com
Not attributed
https://www.chase.com/…
V:R0028
2,167ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…
V:R0029
2,170ms
200
script
static.chasecdn.com
Not attributed
https://static.chasecdn.com/…
V:R0030
2,226ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0031
2,280ms
200
xhr
*.chase.com
Not attributed
https://*.chase.com/…
V:R0032
2,282ms
200
fetch
*.chase.com
Not attributed
https://*.chase.com/…
V:R0033
2,286ms
200
fetch
*.chase.com
Not attributed
https://*.chase.com/…
V:R0034
2,322ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0035
2,323ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0036
2,324ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0037
2,325ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0038
2,326ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0039
2,326ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0040
2,327ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…/home
V:R0041
2,327ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0042
2,329ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0043
2,330ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0044
2,330ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0045
2,330ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0046
2,358ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0047
2,363ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0048
2,367ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0049
2,367ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0050
2,405ms
200
image
www.chase.com
Not attributed
https://www.chase.com/…
V:R0051
2,430ms
200
script
*.chase.com
Not attributed
https://*.chase.com/…
V:R0052
2,509ms
200
script
www.chase.com
Not attributed
https://www.chase.com/…
V:R0053
6,252ms
n/a
ping
*.chase.com
Not attributed
https://*.chase.com/…
This log contains retained rows only; collection did not produce a complete request inventory.
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 Worker instrumentation could not record every request, so the request evidence is incomplete; 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.
Variant visit
Started
Run quality
cut short: the Worker instrumentation could not record every request, so the request evidence is incomplete; 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. 17 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 14 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. On restart-safe deployments, an interrupted visit may be retried; attempts are never merged. Results describe these visits, not everything a site can do.