Baseline visit v2 schema (r2)

cdc.gov

Requested addresshttps://www.cdc.gov/

Aug 14, 2026, 7:21 PM UTC

complete; recorded by the scanner

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Comparison Reportv2 schema (r2)

cdc.gov

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

What this actually means

cdc.gov contacted catalogued Google domains during this visit.

1 distinct catalogued tracking-service entity recorded responses across 3 cross-site domains. A catalog match identifies the service domain, not why the request occurred or what it carried.

1tracking-service entity
4cross-site requests
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

Context

Bottom line: this visit has review-worthy signals

The scan observed signals a non-expert should not have to decode from raw request tables.

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.

51 requests observed in one controlled visit.

Context

5 of 49 requests the engine evaluated matched Brave Shields filter lists

5 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 3 request rows in this visit.Show matched requests

Context

This GPC comparison supports no comparable delta

The pair did not record the network egress region for both visits, and an unrecorded condition never counts as matching.

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.

1 disqualifying condition named by the report's claim policy.

Context

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 (1 of 1 observed tracking company named in the policy). 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.

Policy at https://www.cdc.gov/{seg}/{seg}; 0 checkable statements matched; 1 of 1 observed tracking company named in the policy.

Context

Catalogued service domains recorded responses during this visit

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 analytics / tag management. This scan could not identify 1 of the 3 third-party hosts recorded here, so it cannot say who operates it. That is a limit of identity coverage, not evidence about the site.

4 cross-site requests across 3 third-party hosts.Modest distinct tracking-service entities count.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.

3 requests to these platforms.Show catalog-matched requests

Nothing observed

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

Nothing observed

No third-party cookies observed

The automated visit did not observe third-party cookies.

This does not prove the site never uses cookies; it means this visit did not observe third-party cookies.

11 cookies total in this report.No third-party cookies observed.

Context

Fingerprint-like browser APIs were called

1 high-entropy API call appeared in the instrumentation log.

These calls can be legitimate (charts, graphics, media), so the count is observational, not a severity score, and it excludes Web and Service Workers. Top calls: canvas.toDataURL.

1 API family recorded.

GPC Comparison

GPC off and GPC on: two visits, no comparable metric delta

GPC off: 11,320msGPC on: 10,230ms
No metric deltas are comparable across these two visits, so none are shown.
  • Request, cookie, and storage deltas (each visit's own evidence still renders below): The pair did not record the network egress region for both visits, and an unrecorded condition never counts as matching.
  • Catalog-matched request and entity deltas (each visit's own evidence still renders below): The pair did not record the network egress region for both visits, and an unrecorded condition never counts as matching.
  • Other detector and causal-path deltas (each visit's own evidence still renders below): The pair did not record the network egress region for both visits, and an unrecorded condition never counts as matching.
  • The Shields-number delta (each visit's own evidence still renders below): The pair did not record the network egress region for both visits, and an unrecorded condition never counts as matching.
  • 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.

Measurement limits

4 conditions affect how this evidence reads

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.
  • Read the site's privacy policy (https://www.cdc.gov/{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.

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: f9d6c46e744c60a3485eba3951f0b168b9170941

GPC off — evidence

2026-08-14T19:21:05.981Z · complete; recorded by the scanner

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
4
Not attributable
0
Third-party requests
4

4 third-party requests: 4 attributed to a single recorded actor, 0 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.
Requests514 third-party
Matched Shields lists5verified over 49 requests the engine evaluated
Third-party domains31 distinct catalogued service entity
Cookies110 third-party
Storage keys0values omitted
Fingerprint API calls11 API family
GPC signalVerified offheader and JavaScript readback agreed
Duration11.3s7:21:05 PM UTC

Request composition & timeline

First-party requests 47
Other third-party requests 1
Catalog-matched third-party requests 3

51 requests were recorded from 50 ms to 6,038 ms. Open the request log for exact timing and request details.

0 ms6,038 ms

Recorded visit structure

Visit phases & state changes

3 phases

Request counts are retained request rows whose start fell in each phase. A phase with no retained rows does not prove that no traffic occurred; some phase traffic can be intentionally excluded from the public request log.

PhaseSpan from run startRecorded requestsThird-partyCatalog-matched requestsCookie recordsStorage records
Initial page loadP0 · passive-load0 to 8,776 ms (8,776 ms)514311 present0 retained
Active input probeP1 · active-probe8,776 to 8,833 ms (57 ms)No retained rowsNo retained rowsNo retained rows0 retained0 retained
Privacy-policy analysisP2 · policy-analysis8,905 to 11,320 ms (2,415 ms)No retained rowsNo retained rowsNo retained rows0 retained0 retained

Cookie & storage snapshot ledger

11 change records

Changes are inferred from privacy-filtered snapshots at phase boundaries, not instrumented browser write events. Cookie values are never recorded; storage values are omitted and only byte counts remain.

  1. P0 · Initial page loadPresent at first snapshot
    Cookie 1 · name hidden for privacyFirst-party cookie · persistent
  2. P0 · Initial page loadPresent at first snapshot
    Cookie 2 · name hidden for privacyFirst-party cookie · session
  3. P0 · Initial page loadPresent at first snapshot
    Cookie 3 · name hidden for privacyFirst-party cookie · session
  4. P0 · Initial page loadPresent at first snapshot
    Cookie 4 · name hidden for privacyFirst-party cookie · persistent
  5. P0 · Initial page loadPresent at first snapshot
    Cookie 5 · name hidden for privacyFirst-party cookie · persistent
  6. P0 · Initial page loadPresent at first snapshot
    Cookie 6 · name hidden for privacyFirst-party cookie · persistent
  7. P0 · Initial page loadPresent at first snapshot
    Cookie 7 · name hidden for privacyFirst-party cookie · persistent
  8. P0 · Initial page loadPresent at first snapshot
    Cookie 8 · name hidden for privacyFirst-party cookie · persistent
  9. P0 · Initial page loadPresent at first snapshot
    Cookie 9 · name hidden for privacyFirst-party cookie · persistent
  10. P0 · Initial page loadPresent at first snapshot
    _gaFirst-party cookie · persistent
  11. P0 · Initial page loadPresent at first snapshot
    Cookie 11 · name hidden for privacyFirst-party cookie · persistent

10 change records hide unreviewed names or keys because they can contain identifiers.

Domain evidence

5 recorded domains
DomainRoleRequestsCatalog matchResource types
www.google-analytics.comservice2Google: analytics / tag managementfetch
www.googletagmanager.comservice1Google: analytics / tag managementscript
*.digitalgov.govthird-party1No catalog matchscript
www.cdc.govfirst-party45No catalog matchdocument, stylesheet, script, image, font, fetch
*.cdc.govfirst-party2No catalog matchfetch

Request log

51 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.

RefTimePhaseStatusTypeDomainProvenanceURL
B:R000150msP0301documentwww.cdc.govNot attributedhttps://www.cdc.gov/
B:R0002207msP0200documentwww.cdc.govNot attributedhttps://www.cdc.gov/…
B:R0003261msP0200stylesheetwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0004261msP0200scriptwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0005262msP0200stylesheetwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0006262msP0200scriptwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0007262msP0200imagewww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0008262msP0200imagewww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0009367msP0200imagewww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0010370msP0200imagewww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0011372msP0200imagewww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0012373msP0200scriptwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0013374msP0200scriptwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0014375msP0200scriptwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0015376msP0200scriptwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0016376msP0200scriptwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0017376msP0200scriptwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0018376msP0200scriptwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0019376msP0200imagewww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0020376msP0200imagewww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0021377msP0200imagewww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0022377msP0200imagewww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0023377msP0200imagewww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0024377msP0200imagewww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0025377msP0200imagewww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0026377msP0200imagewww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0027377msP0200imagewww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0028377msP0200imagewww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0029378msP0200stylesheetwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0030406msP0200imagewww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0031408msP0200fontwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0032408msP0200fontwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0033408msP0200fontwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0034409msP0200fontwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0035409msP0200fontwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0036409msP0200fontwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0037409msP0200fontwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0038409msP0200fontwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0039409msP0200fontwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0040409msP0200fontwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0041691msP0200scriptwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0042711msP0200fetch*.cdc.govinitiated by www.cdc.govhttps://*.cdc.gov/…
B:R0043711msP0200scriptwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0044712msP0200fetchwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0045712msP0200fetch*.cdc.govinitiated by www.cdc.govhttps://*.cdc.gov/…
B:R0046715msP0200fetchwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R0047761msP0200script*.digitalgov.govinitiated by www.cdc.govhttps://*.digitalgov.gov/…
B:R0048762msP0200scriptwww.googletagmanager.cominitiated by www.cdc.govhttps://www.googletagmanager.com/…?id
B:R00491,034msP0204fetchwww.google-analytics.cominitiated by www.googletagmanager.comhttps://www.google-analytics.com/…?v&tid&…&cid
B:R00501,041msP0200scriptwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
B:R00516,038msP0204fetchwww.google-analytics.cominitiated by www.googletagmanager.comhttps://www.google-analytics.com/…?v&tid&…&cid

GPC on — evidence

2026-08-14T19:21:17.305Z · complete; recorded by the scanner

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
4
Not attributable
0
Third-party requests
4

4 third-party requests: 4 attributed to a single recorded actor, 0 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.
Requests514 third-party
Matched Shields lists5verified over 49 requests the engine evaluated
Third-party domains31 distinct catalogued service entity
Cookies110 third-party
Storage keys0values omitted
Fingerprint API calls11 API family
GPC signalVerified onheader and JavaScript readback agreed
Duration10.2s7:21:17 PM UTC

Request composition & timeline

First-party requests 47
Other third-party requests 1
Catalog-matched third-party requests 3

51 requests were recorded from 55 ms to 6,037 ms. Open the request log for exact timing and request details.

0 ms6,037 ms

Recorded visit structure

Visit phases & state changes

3 phases

Request counts are retained request rows whose start fell in each phase. A phase with no retained rows does not prove that no traffic occurred; some phase traffic can be intentionally excluded from the public request log.

PhaseSpan from run startRecorded requestsThird-partyCatalog-matched requestsCookie recordsStorage records
Initial page loadP0 · passive-load0 to 8,743 ms (8,743 ms)514311 present0 retained
Active input probeP1 · active-probe8,743 to 8,801 ms (58 ms)No retained rowsNo retained rowsNo retained rows0 retained0 retained
Privacy-policy analysisP2 · policy-analysis8,875 to 10,230 ms (1,355 ms)No retained rowsNo retained rowsNo retained rows0 retained0 retained

Cookie & storage snapshot ledger

11 change records

Changes are inferred from privacy-filtered snapshots at phase boundaries, not instrumented browser write events. Cookie values are never recorded; storage values are omitted and only byte counts remain.

  1. P0 · Initial page loadPresent at first snapshot
    Cookie 1 · name hidden for privacyFirst-party cookie · persistent
  2. P0 · Initial page loadPresent at first snapshot
    Cookie 2 · name hidden for privacyFirst-party cookie · session
  3. P0 · Initial page loadPresent at first snapshot
    Cookie 3 · name hidden for privacyFirst-party cookie · session
  4. P0 · Initial page loadPresent at first snapshot
    Cookie 4 · name hidden for privacyFirst-party cookie · persistent
  5. P0 · Initial page loadPresent at first snapshot
    Cookie 5 · name hidden for privacyFirst-party cookie · persistent
  6. P0 · Initial page loadPresent at first snapshot
    Cookie 6 · name hidden for privacyFirst-party cookie · persistent
  7. P0 · Initial page loadPresent at first snapshot
    Cookie 7 · name hidden for privacyFirst-party cookie · persistent
  8. P0 · Initial page loadPresent at first snapshot
    Cookie 8 · name hidden for privacyFirst-party cookie · persistent
  9. P0 · Initial page loadPresent at first snapshot
    Cookie 9 · name hidden for privacyFirst-party cookie · persistent
  10. P0 · Initial page loadPresent at first snapshot
    _gaFirst-party cookie · persistent
  11. P0 · Initial page loadPresent at first snapshot
    Cookie 11 · name hidden for privacyFirst-party cookie · persistent

10 change records hide unreviewed names or keys because they can contain identifiers.

Domain evidence

5 recorded domains
DomainRoleRequestsCatalog matchResource types
www.google-analytics.comservice2Google: analytics / tag managementfetch
www.googletagmanager.comservice1Google: analytics / tag managementscript
*.digitalgov.govthird-party1No catalog matchscript
www.cdc.govfirst-party45No catalog matchdocument, stylesheet, script, image, font, fetch
*.cdc.govfirst-party2No catalog matchfetch

Request log

51 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.

RefTimePhaseStatusTypeDomainProvenanceURL
V:R000155msP0301documentwww.cdc.govNot attributedhttps://www.cdc.gov/
V:R0002190msP0200documentwww.cdc.govNot attributedhttps://www.cdc.gov/…
V:R0003255msP0200stylesheetwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0004255msP0200scriptwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0005256msP0200stylesheetwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0006256msP0200scriptwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0007257msP0200imagewww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0008257msP0200imagewww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0009342msP0200imagewww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0010370msP0200imagewww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0011372msP0200imagewww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0012373msP0200scriptwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0013374msP0200scriptwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0014374msP0200scriptwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0015374msP0200scriptwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0016375msP0200scriptwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0017375msP0200scriptwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0018375msP0200scriptwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0019376msP0200imagewww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0020376msP0200imagewww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0021376msP0200imagewww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0022376msP0200imagewww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0023376msP0200imagewww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0024376msP0200imagewww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0025376msP0200imagewww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0026377msP0200imagewww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0027377msP0200imagewww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0028377msP0200imagewww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0029377msP0200stylesheetwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0030405msP0200imagewww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0031406msP0200fontwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0032406msP0200fontwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0033406msP0200fontwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0034407msP0200fontwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0035408msP0200fontwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0036408msP0200fontwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0037409msP0200fontwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0038409msP0200fontwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0039409msP0200fontwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0040409msP0200fontwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0041648msP0200scriptwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0042669msP0200fetch*.cdc.govinitiated by www.cdc.govhttps://*.cdc.gov/…
V:R0043669msP0200scriptwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0044670msP0200fetchwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0045670msP0200fetch*.cdc.govinitiated by www.cdc.govhttps://*.cdc.gov/…
V:R0046673msP0200fetchwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R0047758msP0200script*.digitalgov.govinitiated by www.cdc.govhttps://*.digitalgov.gov/…
V:R0048759msP0200scriptwww.googletagmanager.cominitiated by www.cdc.govhttps://www.googletagmanager.com/…?id
V:R00491,034msP0204fetchwww.google-analytics.cominitiated by www.googletagmanager.comhttps://www.google-analytics.com/…?v&tid&…&cid
V:R00501,041msP0200scriptwww.cdc.govinitiated by www.cdc.govhttps://www.cdc.gov/…
V:R00516,037msP0204fetchwww.google-analytics.cominitiated by www.googletagmanager.comhttps://www.google-analytics.com/…?v&tid&…&cid

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
20260814-40b1cc683125ef9beb03219fbe1e60b0
Site
cdc.gov
Latest visit
Schema
v2 schema (r2)
Verify recorded provenance

Baseline visit

Started
Run quality
complete; recorded by the scanner
Scanner
playwright-chromium
Browser
151.0.7922.34
Redaction
version 4
Methodology
shields-request-context-v2-adblock-rust-0.13.2-request-method-v1-playwright-1.62.1+subject-validity-v2+detector-coverage-v2+phase-kernel-v2+boundary-state-v1+consent-r2-v4+resource-budget-v1+proxy-traffic-v1+service-worker-block-v1+detector-accountability-v1+service-role-taxonomy-v1
Detector registry
node-detectors-v4100de91713270067dff4f5ecebeea61d330982c7a5aa33395bae3dd604adedd2
Tracker catalog digest
e94970de235fc80254de8ed99b94316a252e52aa1c2e748c8fbfc3c093b908f4
Brave-list instrument
engine adblock-rust-0.13.20f52cc524a8999a1022279aca74003ece9720f267bc678430727b7312d43f0ac
Normalization
redaction-v4+allowlists-v3:269f631f04090ce582644ee3cf0e5c5b6bb425dc4929bc283607b808bc9322a9+public-string-policy-v3:6c78c05523e1f16c88264d0144af33587bd6dc11e04d337a6af2d58190639266+tldts@7.4.10+node-evidence-policy-v1+r2-http-status-compat-v1

Variant visit

Started
Run quality
complete; recorded by the scanner
Scanner
playwright-chromium
Browser
151.0.7922.34
Redaction
version 4
Methodology
shields-request-context-v2-adblock-rust-0.13.2-request-method-v1-playwright-1.62.1+subject-validity-v2+detector-coverage-v2+phase-kernel-v2+boundary-state-v1+consent-r2-v4+resource-budget-v1+proxy-traffic-v1+service-worker-block-v1+detector-accountability-v1+service-role-taxonomy-v1
Detector registry
node-detectors-v4100de91713270067dff4f5ecebeea61d330982c7a5aa33395bae3dd604adedd2
Tracker catalog digest
e94970de235fc80254de8ed99b94316a252e52aa1c2e748c8fbfc3c093b908f4
Brave-list instrument
engine adblock-rust-0.13.20f52cc524a8999a1022279aca74003ece9720f267bc678430727b7312d43f0ac
Normalization
redaction-v4+allowlists-v3:269f631f04090ce582644ee3cf0e5c5b6bb425dc4929bc283607b808bc9322a9+public-string-policy-v3:6c78c05523e1f16c88264d0144af33587bd6dc11e04d337a6af2d58190639266+tldts@7.4.10+node-evidence-policy-v1+r2-http-status-compat-v1

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.