Baseline visit v1 schema · facts legacy-derived · descriptive report

www.webmd.com

Requested addresshttps://www.webmd.com/

Jul 27, 2026, 9:06 AM UTC

cut short: the visit hit the scanner's request-recording cap, so its counts are truncated; derived from status and warnings

Evidence quality

This report is built on an incomplete visit

Incomplete evidence: evidence was cut short before completion (the visit hit the scanner's request-recording cap, so its counts are truncated). 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.webmd.com: 1,000 recorded request rows.

Comparison Reportv1 schema · facts legacy-derived · descriptive reportrecording capped

Brave-list blocking off/on comparison

Recorded final address https://www.webmd.com/ (opens in a new tab)

The selected visit hit the request-recording cap. Request and domain counts are lower bounds; cookie and storage availability is reported separately.

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.

Public evidence correction

webmd.com: report corrected

SBL-CORR-2026-003: The X pixel decoder treated any populated sale amount or order quantity as Purchase, including zero. The Purchase label in these reports is unsupported and must not be used as evidence of a purchase. The underlying X pixel requests remain observations. Consult earlier clarification events for input-probe and policy limitations.

Plain-Language Findings

What this visit means

Unfamiliar terms are defined in the glossary
playwright-chromium

Worth checking

Report corrected

The X pixel decoder treated any populated sale amount or order quantity as Purchase, including zero. The Purchase label in these reports is unsupported and must not be used as evidence of a purchase. The underlying X pixel requests remain observations. Consult earlier clarification events for input-probe and policy limitations.

The original observations remain available below. Use them with the public correction; the original findings summary is withheld.

SBL-CORR-2026-003 · https://sitebehavior.org/corrections/v1-accuracy/

Brave Shields Comparison

No blocking and Brave-list blocking: two visits, no comparable metric delta

No blocking: 14,931msBrave-list blocking: 7,576ms
These two visits do not support a side-by-side comparison, so no deltas are shown.
  • The "No blocking" visit hit the 1,000-request recording cap, so its counts are truncated.

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

10 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.
  • This scan typed a synthetic test value into 3 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.webmd.com/{seg}/{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.

No blocking visit only

  • The page did not reach network idle before the scan window ended.
  • Resolved 1 first-party subdomain that is a CNAME alias for a third-party tracker (CNAME cloaking), which request-URL matching alone would miss.
  • The scan stopped recording or loading additional requests after 1000 requests.

Brave-list blocking visit only

  • Brave Shields block simulation was enabled; matching requests were aborted before loading and are not included in request totals.

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
20260727-a88816ce1407f4dbbf4247fee53b6e9e
Site
www.webmd.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 request-recording cap, so its counts are truncated; 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
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. 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 .