Site Behavior Lab

Baseline visit Older format: some facts reconstructed, descriptive only

www.walmart.com

Requested addresshttps://www.walmart.com/

Aug 7, 2026, 4:04 AM UTC

Public corrections ledger · SBL-CORR-2026-001

This report has a reviewed clarification

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.

Read the public review record

Evidence quality

This report is built on an incomplete visit

Incomplete evidence: evidence was cut short before completion (the visit hit the scanner's total response-byte budget, so it stopped loading further content). 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.

What this actually means

walmart.com's retained request log includes catalogued Google domains.

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.

≥2tracking-service entities retained
≥502cross-site requests
Snapshot incompletethird-party cookie record

Plain-Language Findings

What this visit means

Unfamiliar terms are defined in the glossary
playwright-chromium

Worth checking

Bottom line: this visit has signals worth checking

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, cookie counts are an incomplete end-state snapshot and storage counts are an incomplete end-state snapshot.

The cards below translate the evidence into plain language. This failed or incomplete evidence is not ranked against corpus percentiles; positive signals remain visible as lower bounds. The request log, domain table, and methodology remain below for verification.

at least 532 retained requests observed in one controlled visit.

What was checked

Page
https://www.walmart.com/
When
Aug 7, 2026, 4:04 AM UTC
Setup
Both visits used headless Chromium in a desktop window of 1440 × 980, with en-US language and UTC time zone. Both ran from a GitHub Actions Ubuntu runner; the network region was not recorded. Neither sent the Global Privacy Control (GPC) signal.
Visits
Two visits configured to differ in Brave-list blocking: No blocking and Brave-list blocking.
Interactions
Typed a made-up test value into 1 form field in the Brave-list blocking visit, never submitting the form; no typing was recorded in the No blocking visit. No scrolling, clicking or consent interaction.
Outcome
Both visits completed, but some evidence was cut short.

What these visits could not see

  • Other pages on this site. Only the requested page's activity was recorded.
  • Signed-in visitors, other browsers and other regions. Both visits were automated, from a fixed en-US / UTC profile. Sites can behave differently for real users, browsers, regions, accounts, or network locations.
  • Anything that loads only after interaction or consent. Trackers that load that late are not observed, so counts are a lower bound.
  • Services the catalog does not name. Service labels use a US-biased hand-curated catalog, so regional services may be under-labeled.
  • Checks with incomplete evidence. In both visits: every check. Every card below states only what was retained.

Worth checking

at least 13 retained requests matched Brave Shields filter lists

at least 13 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. This is Site Behavior Lab's list-based simulation, which applies every list to the site's own requests too. Brave's default Standard setting skips most of these lists for such requests, so its results can differ. Blocking can also prevent follow-on requests, so this number is neither a measured block count nor what a Brave visit would block.

The hand-curated service catalog separately matched at least 10 retained request rows in this visit.Show matched requests

Context

This Shields comparison is not conclusive

The "No blocking" visit exhausted its aggregate response-byte budget, so its request evidence is incomplete. The "Brave-list blocking" visit exhausted its aggregate response-byte budget, 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.

2 disqualifying conditions named by the report's claim policy.Show matched requests

Context

Requests were dispatched to catalogued service domains

Criteo and 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 advertising. This scan could not identify 3 of the 8 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 role taxonomy assigns these additional services explicitly non-tracking operational, support, security, consent-management, or hosting roles: HUMAN Security.

at least 502 retained cross-site requests across at least 8 retained third-party hosts.Show third-party requests

Context

Requests were dispatched to catalogued major-platform domains

This visit dispatched requests to catalogued domains for Google.

The domain matches identify services, not the requests' purpose, payload, or whether any profile linking occurred.

at least 1 retained request to these platforms.Show catalog-matched requests

Context

Incomplete evidence: No Google Analytics observed in retained evidence before collection stopped

No Google Analytics request appears in the retained evidence.

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.

No google-analytics.com or googletagmanager.com requests.Show catalog-matched requests

Context

Third-party cookies were present

1 third-party cookie showed up during the visit.

The scanner observed cookie metadata whose domain crossed the scanned site's registrable-domain boundary. This report does not retain cookie values or partition keys, so it does not establish whether a cookie was a persistent identifier or could recognize a visitor across sites.

20 cookies total in this report.

Look closer

See other visits' cookie counts

Opens this site's history page, which lists the third-party cookie count each of its retained reports recorded.

Context

Input-monitoring signal involving a script from another domain

Listener coverage that could observe typing-related input events was registered through call chains that included a script served from another registrable domain. This scan did not establish the operator of that script.

This is a behavioral instrumentation signal from listener registration, stack-attributed script origins, and known-vendor requests: it shows the page was instrumented to observe interaction, not that anything was transmitted. Stack attribution records the script origins present in the bounded registration call chain. A cross-site origin in that chain does not by itself establish that the cross-site script registered the listener. That is because first-party code can register its own listeners through a helper served from elsewhere. A different registrable domain is also not by itself a different operator: sites commonly serve their own scripts from a separate asset domain. The card therefore says third party only when the catalog or reviewed ownership attributes an origin to another organization. On scanners that run the active keystroke-capture probe, actual transmission is tested separately (a synthetic value is typed, never real input, and no typed values are collected). Treat this card as a review prompt rather than proof.

Session-recording listener coverage: 161 interaction-listener registrations with https://*.walmartimages.com/ in the registration call chain. Input-monitoring listener coverage: 43 input-listener registrations with https://*.walmartimages.com/ in the registration call chain.

Look closer

Show requests involving *.walmartimages.com

Opens this report's request log filtered to *.walmartimages.com, a script origin recorded in the listener's call chain.

Context

Incomplete evidence: No fingerprint-like API calls observed in retained evidence before collection stopped

The retained evidence holds no calls to 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.

Raw evidence

Open the interactive evidence explorer

The findings above are built from the stored report. Load the request rows, domains, cookies, storage keys, browser signals, visit phases, charts and CSV export when you want to check them; the versioned report JSON is always available below without this interface.

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.

Report ID
20260807-f9548793fdd581d36e625363de7dee62
Site
www.walmart.com
Latest visit
Schema
v1 schema · facts legacy-derived · descriptive report
Verify recorded provenance

Baseline visit

Started
Run quality
cut short: the visit hit the scanner's total response-byte budget, so it stopped loading further content; 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 visit hit the scanner's total response-byte budget, so it stopped loading further content; 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. 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. A study has been recorded for pixel-events and does not support a published rate under the current build. 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 .