Site Behavior LabSee what a site does, not just what it says.

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

www.medicare.gov

https://www.medicare.gov/

Aug 17, 2026, 6:17 AM UTC

cut short: the in-page fingerprint observer could not read every frame, so the fingerprinting evidence is incomplete; derived from status and warnings

View site historyScan this exact route againReport an evidence problem

Evidence quality

This report is built on an incomplete visit

Incomplete evidence: evidence was cut short before completion (the in-page fingerprint observer could not read every frame, so the fingerprinting 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.

What this actually means

medicare.gov recorded 103 fewer third-party requests in the visit configured for Brave-list blocking.

The visit with no blocking made 205 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 103 fewer third-party requests. The blocker directly stopped 16 requests; the remaining difference may include follow-on requests that never started once their sources were blocked, plus run-to-run variance.

6tracking-service entities
149cross-site requests
19third-party cookie records
Observed in two automated visits: evidence to check, not a verdict.

Detailed evidence

Open the interactive evidence explorer

Load request rows, domains, cookies, storage, browser signals, visit phases, charts, and CSV export only when you need them. The versioned report JSON remains available above 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.

Integrity and provenance

Evidence receipt

Open report JSONOpen provenance sidecar
Report ID
20260817-f165913ad4f4b0d0f76b27e295b96384
Site
www.medicare.gov
Latest visit
Schema
v1 schema · facts legacy-derived · descriptive report
Verify recorded provenance

Baseline visit

Started
Run quality
cut short: the in-page fingerprint observer could not read every frame, so the fingerprinting evidence is incomplete; 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
complete; 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. 14 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 11 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 .