Baseline visit Older format: some facts reconstructed, descriptive only

www.medicare.gov

Requested addresshttps://www.medicare.gov/

Oct 19, 2026, 11:20 AM UTC

cut short: the fingerprint observer could not read one or more Web Workers the page started, so the fingerprinting evidence is incomplete; the synthetic form-input probe did not complete its test, so input-capture detection 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 fingerprint observer could not read one or more Web Workers the page started, so the fingerprinting evidence is incomplete; the synthetic form-input probe did not complete its test, so input-capture detection 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.

Comparison ReportOlder format: some facts reconstructed, descriptive only

Brave-list blocking off/on comparison

Recorded final address https://www.medicare.gov/
SharePDF + evidence

What this actually means

medicare.gov recorded 136 fewer third-party requests in the visit configured for Brave-list blocking.

The visit with no blocking made 247 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 136 fewer third-party requests. The blocker directly stopped 21 requests; the remaining difference may include follow-on requests that never started once their sources were blocked, plus run-to-run variance.

8tracking-service entities
194cross-site requests
30third-party cookie records
≥2fingerprint-like patterns retained
Observed in two automated visits: evidence to check, not a verdict.
Post on X

Plain-Language Findings

What this visit means

Unfamiliar terms are defined in the glossary
playwright-chromium

Review-worthy

Bottom line: this visit has review-worthy signals

The scan observed signals a non-expert should not have to decode from raw request tables. Some detector evidence was incomplete; each affected detector card states its own retained or unavailable scope, while completed request, cookie, and storage measurements keep their recorded exactness.

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.

247 requests observed in one controlled visit.

Worth checking

61 requests matched Brave Shields filter lists

61 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 76 request rows in this visit.Show matched requests

Not flagged

Lower values observed across comparable metrics in the Brave-list blocking attempt

The blocking visit ran with the scanner configured to apply Brave's ad-block engine and default Shields filter lists. It was a simulation in this scanner's browser, not a live Brave-browser visit, and application was not verified. Compared with the unblocked visit, it showed 136 fewer third-party requests, 25 fewer third-party cookies and 49 fewer tracking-related service requests.

Services only seen in the unblocked visit: The Trade Desk, Google and Magnite, plus 4 others. The blocking visit's engine directly blocked 21 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

Worth checking

2 first-party DNS aliases matched tracking checks

2 resolved targets matched Brave filter lists; those matches do not identify the operators.

The scanner followed DNS CNAME chains from first-party subdomains and checked resolved targets against the service catalog and Brave filter lists. These matches do not establish a request's purpose, profiling, or an intent to conceal tracking. A filter-list match alone is not a verified service identity or proof of tracking.

api.medicare.gov → *.*.gov.edgekey.net (Brave filter-list match; operator unverified) and *.medicare.gov → *.*.gov.edgekey.net (Brave filter-list match; operator unverified)Open domain evidence

Context

Tracking companies the privacy policy does not appear to name

Tealium, The Trade Desk and Index Exchange, plus 2 others were sent requests during this visit, but the policy text matched none of the names this scan knows those companies by.

Policies often disclose vendor categories rather than company names, so an unnamed vendor is a transparency gap worth reviewing, not automatically a violation. Named in the policy: Google and Microsoft.

Policy at https://www.medicare.gov/privacy-policy; 0 checkable statements matched; 2 of 7 observed tracking companies named in the policy. Policy mentions of Magnite are unknown because the historical alias matcher was incomplete.

Review-worthy

Catalogued service domains recorded responses during this visit

Tealium, The Trade Desk and Google, plus 5 others 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 tag management / customer data, advertising / demand-side platform and analytics / tag management. This scan could not identify 18 of the 37 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: New Relic.

194 cross-site requests across 37 third-party hosts.Elevated distinct tracking-service entities count (at or above the 6 reference threshold).Show third-party requests

Context

Requests were dispatched to catalogued major-platform domains

This visit dispatched requests to catalogued domains for Google and Microsoft.

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

21 requests to these platforms.Show catalog-matched requests

Not flagged

Google Analytics present, no remarketing signal

Google Analytics was observed, but no DoubleClick remarketing sync appeared in this visit.

Standard analytics collection was observed, without the stats.g.doubleclick.net advertising sync.

Google Analytics host observed; no stats.g.doubleclick.net request.Show catalog-matched requests

Review-worthy

Third-party cookies were present

30 third-party cookies 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.

59 cookies total in this report.High third-party cookies count (at or above the 12 reference threshold).

Context

Input-monitoring signal involving a third-party script

Listener coverage that could observe typing-related input events was registered through call chains that included a third-party 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: 50 interaction-listener registrations with https://ads.nextdoor.com/, https://cdn1.adoberesources.net/ and https://*.digitalgov.gov/, plus 4 others in the registration call chain. Input-monitoring listener coverage: 15 input-listener registrations with https://ads.nextdoor.com/, https://*.digitalgov.gov/ and https://*.*.qualtrics.com/ in the registration call chain.

Worth checking

Behavioral fingerprinting heuristics matched

At least 2 behavioral heuristics matched in retained evidence: Offline audio rendering heuristic and Canvas font probing heuristic.

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.

Offline audio rendering heuristic: 1 offline render with audio.OfflineAudioContext.createAnalyser, audio.OfflineAudioContext.createDynamicsCompressor and audio.OfflineAudioContext.createOscillator, plus 2 others. Canvas font probing heuristic: 11 measureText calls across up to 11 fonts; measured text contents are not stored.

Brave Shields Comparison

No blocking → Brave-list blocking delta

No blocking: 12,765msBrave-list blocking: 14,189msRan first: Brave-list blocking
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.
Requests-144No blocking: 247 · Brave-list blocking: 103
Third-party requests-136No blocking: 194 · Brave-list blocking: 58
Third-party domains-31No blocking: 37 · Brave-list blocking: 6
Cookies-40No blocking: 59 · Brave-list blocking: 19
Third-party cookies-25No blocking: 30 · Brave-list blocking: 5
Storage keys-12No blocking: 22 · Brave-list blocking: 10
Catalog-matched requests-57No blocking: 76 · Brave-list blocking: 19

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.

Largest per-domain request-count changes

*.*.qualtrics.comunlabeled third partyNo blocking: 29 · Brave-list blocking: 0Show No blocking requests · Show Brave-list blocking requests-29
*.cms.govunlabeled third partyNo blocking: 20 · Brave-list blocking: 0Show No blocking requests · Show Brave-list blocking requests-20
*.adsrvr.orgThe Trade Desk · advertising / demand-side platformNo blocking: 19 · Brave-list blocking: 0Show No blocking requests · Show Brave-list blocking requests-19
*.*.doubleclick.netGoogle · advertisingNo blocking: 10 · Brave-list blocking: 0Show No blocking requests · Show Brave-list blocking requests-10
*.medicare.govfirst partyNo blocking: 17 · Brave-list blocking: 9Show No blocking requests · Show Brave-list blocking requests-8
*.nr-data.netNew Relic · performance monitoringNo blocking: 6 · Brave-list blocking: 0Show No blocking requests · Show Brave-list blocking requests-6
*.*.cognitivlabs.comunlabeled third partyNo blocking: 3 · Brave-list blocking: 0Show No blocking requests · Show Brave-list blocking requests-3
*.analytics.yahoo.comunlabeled third partyNo blocking: 3 · Brave-list blocking: 0Show No blocking requests · Show Brave-list blocking requests-3
*.bing.comMicrosoft · advertising / analyticsNo blocking: 3 · Brave-list blocking: 0Show No blocking requests · Show Brave-list blocking requests-3
ads.nextdoor.comunlabeled third partyNo blocking: 3 · Brave-list blocking: 0Show No blocking requests · Show Brave-list blocking requests-3
pixel.rubiconproject.comMagnite · advertising / supply-side platformNo blocking: 3 · Brave-list blocking: 0Show No blocking requests · Show Brave-list blocking requests-3
www.googletagmanager.comGoogle · analytics / tag managementNo blocking: 3 · Brave-list blocking: 0Show No blocking requests · Show Brave-list blocking requests-3
*.*.us-gov-pure.cloudunlabeled third partyNo blocking: 6 · Brave-list blocking: 4Show No blocking requests · Show Brave-list blocking requests-2
*.adnxs.comunlabeled third partyNo blocking: 2 · Brave-list blocking: 0Show No blocking requests · Show Brave-list blocking requests-2
*.bidswitch.netunlabeled third partyNo blocking: 2 · Brave-list blocking: 0Show No blocking requests · Show Brave-list blocking requests-2
*.casalemedia.comIndex Exchange · advertising / exchangeNo blocking: 2 · Brave-list blocking: 0Show No blocking requests · Show Brave-list blocking requests-2
*.digitalgov.govunlabeled third partyNo blocking: 2 · Brave-list blocking: 0Show No blocking requests · Show Brave-list blocking requests-2
*.newrelic.comNew Relic · performance monitoringNo blocking: 2 · Brave-list blocking: 0Show No blocking requests · Show Brave-list blocking requests-2
*.tealiumiq.comTealium · tag management / customer dataNo blocking: 2 · Brave-list blocking: 0Show No blocking requests · Show Brave-list blocking requests-2
*.yimg.comunlabeled third partyNo blocking: 2 · Brave-list blocking: 0Show No blocking requests · Show Brave-list blocking requests-2
ad.doubleclick.netGoogle · advertisingNo blocking: 2 · Brave-list blocking: 0Show No blocking requests · Show Brave-list blocking requests-2
analytics-sm.comunlabeled third partyNo blocking: 2 · Brave-list blocking: 0Show No blocking requests · Show Brave-list blocking requests-2
cdn1.adoberesources.netunlabeled third partyNo blocking: 2 · Brave-list blocking: 0Show No blocking requests · Show Brave-list blocking requests-2
www.google-analytics.comGoogle · analytics / tag managementNo blocking: 2 · Brave-list blocking: 0Show No blocking requests · Show Brave-list blocking requests-2
apps.*.us-gov-pure.cloudunlabeled third partyNo blocking: 27 · Brave-list blocking: 26Show No blocking requests · Show Brave-list blocking requests-1
*.*.*.qualtrics.comunlabeled third partyNo blocking: 1 · Brave-list blocking: 0Show No blocking requests · Show Brave-list blocking requests-1
*.contextweb.comunlabeled third partyNo blocking: 1 · Brave-list blocking: 0Show No blocking requests · Show Brave-list blocking requests-1
*.demdex.netAdobe · analytics / advertisingNo blocking: 1 · Brave-list blocking: 0Show No blocking requests · Show Brave-list blocking requests-1
*.google.comGoogle · advertisingNo blocking: 1 · Brave-list blocking: 0Show No blocking requests · Show Brave-list blocking requests-1
*.gstatic.comunlabeled third partyNo blocking: 1 · Brave-list blocking: 0Show No blocking requests · Show Brave-list blocking requests-1
*.nextdoor.comunlabeled third partyNo blocking: 1 · Brave-list blocking: 0Show No blocking requests · Show Brave-list blocking requests-1
*.rlcdn.comLiveRamp · identity / advertisingNo blocking: 1 · Brave-list blocking: 0Show No blocking requests · Show Brave-list blocking requests-1
fonts.googleapis.comunlabeled third partyNo blocking: 1 · Brave-list blocking: 0Show No blocking requests · Show Brave-list blocking requests-1
www.google.comunlabeled third partyNo blocking: 1 · Brave-list blocking: 0Show No blocking requests · Show Brave-list blocking requests-1

Domains only with Brave-list blocking

No domain changes observed.

Domains only with No blocking

*.*.qualtrics.comunlabeled · Show No blocking requests29
*.cms.govunlabeled · Show No blocking requests20
*.adsrvr.orgThe Trade Desk · advertising / demand-side platform · Show No blocking requests19
*.*.doubleclick.netGoogle · advertising · Show No blocking requests10
*.nr-data.netNew Relic · performance monitoring · Show No blocking requests6
*.*.cognitivlabs.comunlabeled · Show No blocking requests3
*.analytics.yahoo.comunlabeled · Show No blocking requests3
*.bing.comMicrosoft · advertising / analytics · Show No blocking requests3
ads.nextdoor.comunlabeled · Show No blocking requests3
pixel.rubiconproject.comMagnite · advertising / supply-side platform · Show No blocking requests3
www.googletagmanager.comGoogle · analytics / tag management · Show No blocking requests3
*.adnxs.comunlabeled · Show No blocking requests2
*.bidswitch.netunlabeled · Show No blocking requests2
*.casalemedia.comIndex Exchange · advertising / exchange · Show No blocking requests2
*.digitalgov.govunlabeled · Show No blocking requests2
*.newrelic.comNew Relic · performance monitoring · Show No blocking requests2
*.tealiumiq.comTealium · tag management / customer data · Show No blocking requests2
*.yimg.comunlabeled · Show No blocking requests2
ad.doubleclick.netGoogle · advertising · Show No blocking requests2
analytics-sm.comunlabeled · Show No blocking requests2
cdn1.adoberesources.netunlabeled · Show No blocking requests2
www.google-analytics.comGoogle · analytics / tag management · Show No blocking requests2
*.*.*.qualtrics.comunlabeled · Show No blocking requests1
*.contextweb.comunlabeled · Show No blocking requests1
*.demdex.netAdobe · analytics / advertising · Show No blocking requests1
*.google.comGoogle · advertising · Show No blocking requests1
*.gstatic.comunlabeled · Show No blocking requests1
*.nextdoor.comunlabeled · Show No blocking requests1
*.rlcdn.comLiveRamp · identity / advertising · Show No blocking requests1
fonts.googleapis.comunlabeled · Show No blocking requests1
www.google.comunlabeled · Show No blocking requests1

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

MUID.bing.comthird-party
IDE.doubleclick.netthird-party
JSESSIONID.nr-data.netthird-party
receive-cookie-deprecation.rubiconproject.comthird-party
_gcl_au.medicare.govfirst-party
_uetsid.medicare.govfirst-party
_uetvid.medicare.govfirst-party

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

The Trade Desk1 domain19
Google5 domains18
New Relic2 domains8
Magnite1 domain3
Microsoft1 domain3
Index Exchange1 domain2
Adobe1 domain1
LiveRamp1 domain1

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.
  • The page did not reach network idle before the scan window ended.
  • The fingerprint observer could not read one or more Web Workers the page started, so fingerprint-like API calls and heuristics for this visit are incomplete.
  • The synthetic form-input probe did not complete its test, so input-capture conclusions for this visit are incomplete.
  • Resolved 2 first-party subdomains that are CNAME aliases for third-party trackers (CNAME cloaking), which request-URL matching alone would miss.
  • Read the site's privacy policy (https://www.medicare.gov/privacy-policy) 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.

Correction context SHA-256: 1a6acc2ad1147c0255b04d14d2748f411159a9516f818959dd3054be53ed216c

Renderer revision: 7ceac3bec3ed9b900be8a50e248d00dc73bf75fc

No blocking — evidence

2026-10-19T11:20:56.793Z · cut short: the fingerprint observer could not read one or more Web Workers the page started, so the fingerprinting evidence is incomplete; the synthetic form-input probe did not complete its test, so input-capture detection 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
126
Not attributable
68
Third-party requests
194

No unique actor could be assigned to 68 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.

194 third-party requests: 126 attributed to a single recorded actor, 68 not attributable.

Select a relationship to see its detail and open the rows behind it.

Showing the 12 highest-volume attribution paths of 29 recorded paths. The per-domain counts above cover only the paths drawn here; open the report JSON for the full set.

By the numbers

Recorded counts and evidence availability from this one visit. The findings above interpret them.
Requests247194 third-party
Matched Shields lists61classification reported by this visit; no engine readback recorded
Third-party domains379 distinct catalogued service entities
Cookies5930 third-party
Storage keys2222 keys privacy-filtered; values omitted
Fingerprint API calls≥242 high-entropy heuristics matched
Interaction listenersInputthird-party listener coverage; transmission tested separately
GPC signalConfigured offreadback not recorded
Duration12.8s11:20:56 AM UTC

Request composition & timeline

First-party requests 53
Other third-party requests 118
Catalog-matched third-party requests 76

247 requests were recorded from 69 ms to 6,521 ms. Open the request log for exact timing and request details.

0 ms6,521 ms

Domain evidence

40 recorded domains
DomainRoleRequestsCatalog matchResource types
*.tiqcdn.comservice19Tealium: tag management / customer datascript
*.adsrvr.orgservice19The Trade Desk: advertising / demand-side platformimage, script, document, xhr
*.*.doubleclick.netservice10Google: advertisingimage, document
*.nr-data.netservice6New Relic: performance monitoringscript, xhr
www.googletagmanager.comservice3Google: analytics / tag managementscript
*.bing.comservice3Microsoft: advertising / analyticsscript, image
pixel.rubiconproject.comservice3Magnite: advertising / supply-side platformimage
*.newrelic.comservice2New Relic: performance monitoringscript
ad.doubleclick.netservice2Google: advertisingfetch
*.tealiumiq.comservice2Tealium: tag management / customer dataimage, script
www.google-analytics.comservice2Google: analytics / tag managementfetch
*.casalemedia.comservice2Index Exchange: advertising / exchangedocument
*.demdex.netservice1Adobe: analytics / advertisingfetch
*.rlcdn.comservice1LiveRamp: identity / advertisingimage
*.google.comservice1Google: advertisingimage
*.*.qualtrics.comthird-party29No catalog matchscript, xhr, fetch, image
apps.*.us-gov-pure.cloudthird-party27No catalog matchscript, document, stylesheet, xhr
*.cms.govthird-party20No catalog matchdocument, script, stylesheet, image, font, xhr
*.*.us-gov-pure.cloudthird-party6No catalog matchxhr
events.launchdarkly.usthird-party4No catalog matchxhr
*.launchdarkly.usthird-party3No catalog matchxhr
ads.nextdoor.comthird-party3No catalog matchscript, fetch
*.*.cognitivlabs.comthird-party3No catalog matchimage
*.analytics.yahoo.comthird-party3No catalog matchimage
www.youtube.comthird-party2No catalog matchscript
cdn1.adoberesources.netthird-party2No catalog matchscript
*.digitalgov.govthird-party2No catalog matchscript
analytics-sm.comthird-party2No catalog matchscript, image
*.yimg.comthird-party2No catalog matchscript, xhr
*.adnxs.comthird-party2No catalog matchimage, document
*.bidswitch.netthird-party2No catalog matchdocument
*.*.*.qualtrics.comthird-party1No catalog matchscript
*.contextweb.comthird-party1No catalog matchscript
www.google.comthird-party1No catalog matchfetch
*.nextdoor.comthird-party1No catalog matchfetch
fonts.googleapis.comthird-party1No catalog matchstylesheet
*.gstatic.comthird-party1No catalog matchfont
www.medicare.govfirst-party34No catalog matchdocument, script, stylesheet, image, font, xhr
*.medicare.govfirst-party17No catalog matchscript, stylesheet, image, font, xhr, ping, fetch
api.medicare.govfirst-party2No catalog matchxhr, ping

Request log

247 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.

RefTimeStatusTypeDomainProvenanceURL
B:R000169ms200documentwww.medicare.govNot attributedhttps://www.medicare.gov/
B:R0002124ms200scriptwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/static/…
B:R0003125ms200script*.medicare.govinitiated by www.medicare.govhttps://*.medicare.gov/…
B:R0004126ms200stylesheet*.medicare.govinitiated by www.medicare.govhttps://*.medicare.gov/…
B:R0005126ms200stylesheetwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
B:R0006127ms200stylesheetwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
B:R0007127ms200stylesheetwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
B:R0008128ms200stylesheetwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
B:R0009130ms200imagewww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
B:R0010130ms200imagewww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
B:R0011155ms200scriptwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
B:R0012157ms200scriptwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
B:R0013185ms200scriptwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
B:R0014248ms200scriptwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
B:R0015250ms200scriptwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
B:R0016270ms200scriptwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
B:R0017272ms200scriptwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
B:R0018273ms200scriptwww.medicare.govNot attributedhttps://www.medicare.gov/…
B:R0019273ms200scriptwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
B:R0020273ms200scriptwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
B:R0021273ms200scriptwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
B:R0022274ms200scriptwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
B:R0023274ms200script*.medicare.govinitiated by www.medicare.govhttps://*.medicare.gov/…
B:R0024274ms200scriptwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/static/…
B:R0025274ms200scriptwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/static/…
B:R0026274ms200scriptwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/static/…
B:R0027275ms200scriptwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/static/…
B:R0028365ms200imagewww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
B:R0029370ms200fontwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
B:R0030372ms200fontwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
B:R0031372ms200fontwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
B:R0032378ms200imagewww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
B:R0033380ms200imagewww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
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B:R02456,097ms200script*.tealiumiq.cominitiated by www.medicare.govhttps://*.tealiumiq.com/…?…
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B:R02476,521ms204fetchwww.google-analytics.cominitiated by www.medicare.govhttps://www.google-analytics.com/…?v&tid&…&cid

Brave-list blocking — evidence

2026-10-19T11:20:42.574Z · cut short: the fingerprint observer could not read one or more Web Workers the page started, so the fingerprinting evidence is incomplete; the synthetic form-input probe did not complete its test, so input-capture detection 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
43
Not attributable
15
Third-party requests
58

No unique actor could be assigned to 15 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.

58 third-party requests: 43 attributed to a single recorded actor, 15 not attributable.

Select a relationship to see its detail and open the rows behind it.

By the numbers

Recorded counts and evidence availability from this one visit. The findings above interpret them.
Requests10358 third-party
Blocked by Brave lists21engine blocks reported by this visit; no engine readback recorded
Third-party domains61 distinct catalogued service entity
Cookies195 third-party
Storage keys1010 keys privacy-filtered; values omitted
Fingerprint API calls≥222 high-entropy heuristics matched
GPC signalConfigured offreadback not recorded
Duration14.2s11:20:42 AM UTC

Request composition & timeline

First-party requests 45
Other third-party requests 39
Catalog-matched third-party requests 19

103 requests were recorded from 57 ms to 2,849 ms. Open the request log for exact timing and request details.

0 ms2,849 ms

Domain evidence

9 recorded domains
DomainRoleRequestsCatalog matchResource types
*.tiqcdn.comservice19Tealium: tag management / customer datascript
apps.*.us-gov-pure.cloudthird-party26No catalog matchscript, document, stylesheet, xhr
events.launchdarkly.usthird-party4No catalog matchxhr
*.*.us-gov-pure.cloudthird-party4No catalog matchxhr
*.launchdarkly.usthird-party3No catalog matchxhr
www.youtube.comthird-party2No catalog matchscript
www.medicare.govfirst-party34No catalog matchdocument, script, stylesheet, image, font, xhr
*.medicare.govfirst-party9No catalog matchstylesheet, script, image, font, xhr, ping
api.medicare.govfirst-party2No catalog matchxhr, ping

Request log

103 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.

RefTimeStatusTypeDomainProvenanceURL
V:R000157ms200documentwww.medicare.govNot attributedhttps://www.medicare.gov/
V:R0002136ms200scriptwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/static/…
V:R0003137ms200stylesheet*.medicare.govinitiated by www.medicare.govhttps://*.medicare.gov/…
V:R0004138ms200stylesheetwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
V:R0005139ms200stylesheetwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
V:R0006139ms200stylesheetwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
V:R0007139ms200stylesheetwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
V:R0008139ms200imagewww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
V:R0009140ms200imagewww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
V:R0010172ms200scriptwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
V:R0011178ms200scriptwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
V:R0012251ms200scriptwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
V:R0013252ms200scriptwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
V:R0014265ms200scriptwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
V:R0015266ms200scriptwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
V:R0016267ms200scriptwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
V:R0017267ms200scriptwww.medicare.govNot attributedhttps://www.medicare.gov/…
V:R0018268ms200scriptwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
V:R0019268ms200scriptwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
V:R0020268ms200scriptwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
V:R0021269ms200scriptwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
V:R0022271ms200script*.medicare.govinitiated by www.medicare.govhttps://*.medicare.gov/…
V:R0023271ms200scriptwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/static/…
V:R0024271ms200scriptwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/static/…
V:R0025272ms200scriptwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/static/…
V:R0026272ms200scriptwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/static/…
V:R0027359ms200imagewww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
V:R0028359ms200fontwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
V:R0029360ms200fontwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
V:R0030361ms200fontwww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
V:R0031362ms200imagewww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
V:R0032363ms200imagewww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
V:R0033363ms200imagewww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
V:R0034364ms200imagewww.medicare.govinitiated by www.medicare.govhttps://www.medicare.gov/…
V:R0035560ms200script*.medicare.govinitiated by www.medicare.govhttps://*.medicare.gov/…
V:R0036564ms201xhrwww.medicare.govNot attributedhttps://www.medicare.gov/…
V:R0037774ms200xhr*.launchdarkly.usinitiated by www.medicare.govhttps://*.launchdarkly.us/…
V:R0038825ms200xhr*.launchdarkly.usinitiated by www.medicare.govhttps://*.launchdarkly.us/…
V:R0039847ms202xhrevents.launchdarkly.usNot attributedhttps://events.launchdarkly.us/…
V:R0040848ms202xhrevents.launchdarkly.usNot attributedhttps://events.launchdarkly.us/…
V:R0041852ms200scriptwww.youtube.cominitiated by www.medicare.govhttps://www.youtube.com/…
V:R0042859ms200script*.tiqcdn.cominitiated by www.medicare.govhttps://*.tiqcdn.com/…?…
V:R0043860ms200script*.tiqcdn.cominitiated by www.medicare.govhttps://*.tiqcdn.com/…?…
V:R0044860ms200script*.tiqcdn.cominitiated by www.medicare.govhttps://*.tiqcdn.com/…?…
V:R0045860ms200script*.tiqcdn.cominitiated by www.medicare.govhttps://*.tiqcdn.com/…?…
V:R0046862ms200script*.tiqcdn.cominitiated by www.medicare.govhttps://*.tiqcdn.com/…?…
V:R0047862ms200script*.tiqcdn.cominitiated by www.medicare.govhttps://*.tiqcdn.com/…?…
V:R0048862ms200script*.tiqcdn.cominitiated by www.medicare.govhttps://*.tiqcdn.com/…?…
V:R0049862ms200script*.tiqcdn.cominitiated by www.medicare.govhttps://*.tiqcdn.com/…?…
V:R0050862ms200script*.tiqcdn.cominitiated by www.medicare.govhttps://*.tiqcdn.com/…?…
V:R0051862ms200script*.tiqcdn.cominitiated by www.medicare.govhttps://*.tiqcdn.com/…?…
V:R0052865ms200script*.tiqcdn.cominitiated by www.medicare.govhttps://*.tiqcdn.com/…?…
V:R0053865ms200script*.tiqcdn.cominitiated by www.medicare.govhttps://*.tiqcdn.com/…?…
V:R0054865ms200script*.tiqcdn.cominitiated by www.medicare.govhttps://*.tiqcdn.com/…?…
V:R0055866ms200script*.tiqcdn.cominitiated by www.medicare.govhttps://*.tiqcdn.com/…?…
V:R0056866ms200script*.tiqcdn.cominitiated by www.medicare.govhttps://*.tiqcdn.com/…?…
V:R0057866ms200xhr*.launchdarkly.usinitiated by www.medicare.govhttps://*.launchdarkly.us/…
V:R0058867ms200script*.tiqcdn.cominitiated by www.medicare.govhttps://*.tiqcdn.com/…?…
V:R0059867ms200script*.tiqcdn.cominitiated by www.medicare.govhttps://*.tiqcdn.com/…?…
V:R0060867ms200script*.tiqcdn.cominitiated by www.medicare.govhttps://*.tiqcdn.com/…?…
V:R0061917ms200xhrapi.medicare.govinitiated by www.medicare.govhttps://api.medicare.gov/…
V:R0062930ms200scriptapps.*.us-gov-pure.cloudinitiated by www.medicare.govhttps://apps.*.us-gov-pure.cloud/…
V:R0063931ms200image*.medicare.govNot attributedhttps://*.medicare.gov/…
V:R0064949ms200font*.medicare.govinitiated by *.medicare.govhttps://*.medicare.gov/…
V:R0065962ms204pingapi.medicare.govNot attributedhttps://api.medicare.gov/…
V:R0066979ms200xhr*.medicare.govinitiated by www.medicare.govhttps://*.medicare.gov/…
V:R0067996ms200scriptwww.youtube.cominitiated by www.medicare.govhttps://www.youtube.com/…
V:R00681,005ms200script*.tiqcdn.cominitiated by www.medicare.govhttps://*.tiqcdn.com/…?…&cb
V:R00691,165ms200xhr*.*.us-gov-pure.cloudinitiated by www.medicare.govhttps://*.*.us-gov-pure.cloud/…
V:R00701,169ms200documentapps.*.us-gov-pure.cloudinitiated by www.medicare.govhttps://apps.*.us-gov-pure.cloud/…
V:R00711,188ms200scriptapps.*.us-gov-pure.cloudNot attributedhttps://apps.*.us-gov-pure.cloud/…
V:R00721,204ms200scriptapps.*.us-gov-pure.cloudinitiated by apps.*.us-gov-pure.cloudhttps://apps.*.us-gov-pure.cloud/…
V:R00731,278ms200xhr*.*.us-gov-pure.cloudinitiated by www.medicare.govhttps://*.*.us-gov-pure.cloud/…
V:R00741,290ms200scriptapps.*.us-gov-pure.cloudinitiated by www.medicare.govhttps://apps.*.us-gov-pure.cloud/…
V:R00751,295ms200documentapps.*.us-gov-pure.cloudinitiated by www.medicare.govhttps://apps.*.us-gov-pure.cloud/…
V:R00761,308ms200documentapps.*.us-gov-pure.cloudinitiated by www.medicare.govhttps://apps.*.us-gov-pure.cloud/…
V:R00771,309ms200documentapps.*.us-gov-pure.cloudinitiated by www.medicare.govhttps://apps.*.us-gov-pure.cloud/…
V:R00781,326ms200scriptapps.*.us-gov-pure.cloudinitiated by apps.*.us-gov-pure.cloudhttps://apps.*.us-gov-pure.cloud/…
V:R00791,333ms200stylesheetapps.*.us-gov-pure.cloudinitiated by apps.*.us-gov-pure.cloudhttps://apps.*.us-gov-pure.cloud/…
V:R00801,338ms200stylesheetapps.*.us-gov-pure.cloudinitiated by apps.*.us-gov-pure.cloudhttps://apps.*.us-gov-pure.cloud/…
V:R00811,341ms200script*.medicare.govinitiated by www.medicare.govhttps://*.medicare.gov/…
V:R00821,354ms304scriptapps.*.us-gov-pure.cloudNot attributedhttps://apps.*.us-gov-pure.cloud/…
V:R00831,355ms200scriptapps.*.us-gov-pure.cloudNot attributedhttps://apps.*.us-gov-pure.cloud/…
V:R00841,365ms200scriptapps.*.us-gov-pure.cloudNot attributedhttps://apps.*.us-gov-pure.cloud/…
V:R00851,365ms200scriptapps.*.us-gov-pure.cloudNot attributedhttps://apps.*.us-gov-pure.cloud/…
V:R00861,368ms200scriptapps.*.us-gov-pure.cloudNot attributedhttps://apps.*.us-gov-pure.cloud/…
V:R00871,368ms200scriptapps.*.us-gov-pure.cloudinitiated by apps.*.us-gov-pure.cloudhttps://apps.*.us-gov-pure.cloud/…
V:R00881,370ms200scriptapps.*.us-gov-pure.cloudinitiated by apps.*.us-gov-pure.cloudhttps://apps.*.us-gov-pure.cloud/…
V:R00891,370ms200scriptapps.*.us-gov-pure.cloudinitiated by apps.*.us-gov-pure.cloudhttps://apps.*.us-gov-pure.cloud/…
V:R00901,371ms200scriptapps.*.us-gov-pure.cloudNot attributedhttps://apps.*.us-gov-pure.cloud/…
V:R00911,372ms200scriptapps.*.us-gov-pure.cloudNot attributedhttps://apps.*.us-gov-pure.cloud/…
V:R00921,372ms200scriptapps.*.us-gov-pure.cloudNot attributedhttps://apps.*.us-gov-pure.cloud/…
V:R00931,373ms200scriptapps.*.us-gov-pure.cloudinitiated by apps.*.us-gov-pure.cloudhttps://apps.*.us-gov-pure.cloud/…
V:R00941,829ms200ping*.medicare.govinitiated by www.medicare.govhttps://*.medicare.gov/…
V:R00951,830ms200script*.medicare.govinitiated by www.medicare.govhttps://*.medicare.gov/…
V:R00961,975ms200xhrapps.*.us-gov-pure.cloudinitiated by apps.*.us-gov-pure.cloudhttps://apps.*.us-gov-pure.cloud/…
V:R00971,994ms200xhr*.*.us-gov-pure.cloudinitiated by www.medicare.govhttps://*.*.us-gov-pure.cloud/…
V:R00981,995ms200xhr*.*.us-gov-pure.cloudinitiated by www.medicare.govhttps://*.*.us-gov-pure.cloud/…
V:R00992,020ms200scriptapps.*.us-gov-pure.cloudNot attributedhttps://apps.*.us-gov-pure.cloud/…
V:R01002,022ms200scriptapps.*.us-gov-pure.cloudNot attributedhttps://apps.*.us-gov-pure.cloud/…
V:R01012,549ms201xhrwww.medicare.govNot attributedhttps://www.medicare.gov/…
V:R01022,848ms202xhrevents.launchdarkly.usNot attributedhttps://events.launchdarkly.us/…
V:R01032,849ms202xhrevents.launchdarkly.usNot attributedhttps://events.launchdarkly.us/…

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 sidecarPrintable versionDownload PDF + evidenceOpen PDF
Report ID
20261019-65524c5772b26145acf8e025e788dd25
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 fingerprint observer could not read one or more Web Workers the page started, so the fingerprinting evidence is incomplete; the synthetic form-input probe did not complete its test, so input-capture detection is incomplete; derived from status and warnings
Scanner
playwright-chromium
Browser
153.0.8010.12
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 fingerprint observer could not read one or more Web Workers the page started, so the fingerprinting evidence is incomplete; the synthetic form-input probe did not complete its test, so input-capture detection is incomplete; derived from status and warnings
Scanner
playwright-chromium
Browser
153.0.8010.12
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.