www.medicare.gov

Report from 7/24/2026, 1:29:57 PM https://www.medicare.gov
Latest run · lab, cold cache
49
7/24/2026
28-day score · p75 · the standard
49
11 runs
CRR100%latest
SSD72%latest
TC237 toklatest
TTFUT38 ms28-day p75

Scored by v3 · source-of-truth hashes: score db860d6ac94e · thresholds e94f8b33e500 — verifiable against the canonical scorer.

The 28-day score is the p75 of nightly runs — the stable number to cite. Deterministic metrics (CRR/SSD/TC) show their latest value (they move only when the site changes); timing (TTFUT) and answer-fidelity (AF) are smoothed by 28-day p75 — the same lab-vs-field split Core Web Vitals uses. Synthetic daily measurement, not real-user field data.

Core Agent Vitals badge  Embed this badge

Show your agent-readiness score anywhere — it links back to this report.

[![Core Agent Vitals](https://agentvitals.dev/badge/medicare.gov.svg)](https://agentvitals.dev/results?url=https%3A%2F%2Fwww.medicare.gov)
<a href="https://agentvitals.dev/results?url=https%3A%2F%2Fwww.medicare.gov"><img src="https://agentvitals.dev/badge/medicare.gov.svg" alt="Core Agent Vitals" height="20"></a>
What AI tells your customers about youAgent confidence: HIGH
Business nameMedicare
CategoryWebsite
🟡Price$50 · guessed from page text (no structured data)
Locationnot applicable · not applicable to this page type
Hoursnot applicable · not applicable to this page type
Productsnot applicable · not applicable to this page type
DescriptionThe official U.S. government website for Medicare, a health insurance program for people age 65 or older and younger people with disabilities.

An agent can answer questions about you accurately. 3/4 applicable facts come from machine-readable structured data.

49
Overall score
weighted CAV (0–100)
PASS
0–4950–8990–100

Metrics

100%
CRR Content Recovery Good
0.72
SSD Semantic Signal Density Good
237 tok
TC Token Cost Good
31 ms
TTFUT Time to First Useful Token N/A

Token Cost breakdown

Where the page's tokens go (≈6,032 across regions). 88% is non-content — chrome and boilerplate an agent pays for. Add landmark roles (main/nav/header/footer) so agents can skip it.

Content
12.2% · 733
Chrome (nav / header / footer)
82% · 4,948
Boilerplate (cookie / ad)
0% · 0
Other
5.8% · 351

Final screenshot

Final screenshot of https://www.medicare.gov

Diagnostics

high TC 87.8% of tokens are non-content (boilerplate/chrome)

agent representation — token decomposition

EvidenceToken decomposition: content 12.2%, chrome 82%, boilerplate 0%, other 5.8%. Only 12.200000000000003% of the agent's tokens are real content.
ImpactAn agent pays for boilerplate on every request and has less context left for the real content.
Effort30–90 min

Fix: Strip repeated nav/header/footer/cookie chrome from the agent-visible output; wrap content in <main>/<article> so the extractor keeps signal and drops boilerplate.

Rendered profile: headless

Agent Discoverability 77/100 · Needs Work

Access & discovery checks — separate from the gated CAV metrics above. Click an issue for business impact, what we measured, and how to fix. · Take the Agent Readiness course →

Agent files & endpoints

llms.txt Absent at /llms.txt and /.well-known/llms.txt Learn →
robots.txt (AI bots) Major AI bots allowed Learn →
~ sitemap.xml Stale (lastmod 2022-09-14T08:59:39-04:00) Learn →
JSON-LD structured data Types: Website Learn →
~ agents.json Absent (emerging standard) Learn →
~ WebMCP endpoint Absent (emerging standard) Learn →
~ OpenAPI / API docs No OpenAPI/Swagger found Learn →

Issues (6)

llms.txt present high impact Absent at /llms.txt and /.well-known/llms.txt

Business impact llms.txt is the robots.txt for AI: it tells agents what your site is, what matters, and where to find it. Without it AI guesses — and guessing means inaccurate recommendations and lost visibility.

What we measured We fetch /llms.txt and /.well-known/llms.txt and validate the spec (H1 title + a one-line blockquote summary). We also note /llms-full.txt (your full content as Markdown).

How to fix Create /llms.txt with a short summary + key pages; optionally /llms-full.txt with full content in Markdown.

Learn how to implement →

# Your Site
> One-line description for AI agents.

## Key pages
- /products — catalog
- /pricing — plans
- /docs — documentation

Spec: https://llmstxt.org

~ No login wall on public content high impact Login signal: /account/login

Business impact Public content behind authentication is unreachable to agents (they have no account). Gate only genuinely private material.

What we measured We follow redirects and detect 401/403 and login-form signals on content pages.

How to fix Separate public marketing/docs from authenticated areas; keep public pages reachable without login.

Spec: https://llmstxt.org

~ XML sitemap fresh medium impact Stale (lastmod 2022-09-14T08:59:39-04:00)

Business impact A sitemap is your table of contents for AI crawlers. Without it agents follow homepage links and miss deep pages (products, docs, pricing) — shrinking what they can recommend.

What we measured We fetch /sitemap.xml (and /sitemap_index.xml), confirm valid XML with <loc> entries, and check <lastmod> freshness.

How to fix Generate an XML sitemap of all public pages with current lastmod dates and reference it in robots.txt.

Learn how to implement →

# robots.txt
Sitemap: https://example.com/sitemap.xml

Spec: https://www.sitemaps.org/

~ agents.json discovery low impact Absent (emerging standard)

Business impact agents.json describes what your site can DO for agents (services, endpoints, capabilities) — an emerging discovery standard. Early adopters get native agent integration.

What we measured We check /agents.json and /.well-known/agents.json for a valid configuration.

How to fix Publish /agents.json describing your site's capabilities and actions.

Learn how to implement →

Spec: https://github.com/wild-card-ai/agents-json

~ WebMCP endpoint low impact Absent (emerging standard)

Business impact WebMCP lets agents call actions on your site directly (book, buy, query) instead of scraping the DOM. Early adopters get native AI-agent interoperability.

What we measured We check /.well-known/webmcp and /webmcp.json for a valid actions array.

How to fix Add a WebMCP endpoint exposing your key actions to agents.

Learn how to implement →

Spec: https://webmcp.org

~ API documentation low impact No OpenAPI/Swagger found

Business impact Programmatic agents prefer a typed API. An OpenAPI/Swagger spec lets them integrate without scraping.

What we measured We probe /openapi.json, /swagger.json, /api-docs and /.well-known/openapi.json.

How to fix Publish an OpenAPI spec at a well-known path.

Learn how to implement →

Spec: https://www.openapis.org/

Passed audits (6)

✓ robots.txt allows AI bots✓ No CAPTCHA wall✓ No content-blocking cookie wall✓ Machine-readable prices✓ Structured data (JSON-LD)✓ Server response (TTFB)

Transport & Trust (SEC 1.0.0)

HTTPS, HSTS, CSP, sniffing, referrer and CORS posture. Diagnostic only — this does not affect the CAV score. A security header does not make a page more legible to an agent, so scoring it would reward a CDN toggle that changes nothing an agent can recover. We measure it and say so.

70Transport posture (0–100, unscored)
3pass
1warn
1fail
Per-header findings (6)
HeaderEvidence
✅ HTTPSserved over HTTPS
✅ HSTSmax-age=31536000 ; includeSubDomains ; preload
❌ Content-Security-Policyno content-security-policy header
✅ X-Content-Type-Optionsnosniff
⚠️ Referrer-Policyno referrer-policy header (browser default applies)
➖ CORS exposureno CORS headers on the document (normal for an HTML page)
Full profile — how to improve · unused JS · network · timing

How to improve

highSplit the heaviest unused bundlehighest leverage

index-BpkP_SZl.js — 375 KiB transferred, 64.3% unused

EvidenceCDP JS coverage: 241 KiB of this bundle is never executed on load.
Impact~-241 KiB transfer; lower Token Cost + faster agent parse.
Effort30–90 min
FixDynamic-import() the below-the-fold parts of index-BpkP_SZl.js, or drop unused dependencies.
highBreak up long main-thread tasks

longest task 480 ms (10 total)

EvidenceMain thread blocked 480 ms by the longest task.
ImpactFaster interactivity + content settling.
Effort1–4 h
FixSplit heavy work, defer third-party scripts, move compute off the main thread.
mediumCut third-party weight

googletagmanager.com — 419 KiB, 3 requests, 55 ms main-thread

EvidenceThird-party is 46.7% of total transfer (86 requests); googletagmanager.com is the largest.
ImpactFewer bytes + main-thread stalls before your content settles for an agent.
Effort1–3 h
FixLazy-load, self-host, or remove googletagmanager.com; defer non-critical third-party scripts.
mediumReduce layout shift

cumulative layout shift

EvidenceCLS is 0.193.
ImpactStable layout for render + screenshot.
Effort30–60 min
FixSet explicit width/height on images; reserve space for late-loading content.
mediumCut total transfer weight

2.2 MB total

Evidence2.2 MB transferred.
ImpactCheaper, faster fetch on slow links.
Effort1–3 h
FixEnable Brotli, serve WebP/AVIF images, defer non-critical resources.

Third-party impact

86 third-party requests · 1040 KiB (46.7% of transfer) · 112 ms main-thread — code an agent must also fetch/run before your content settles. Fewer, lazier third-parties = faster, cheaper agent reads.

Third-party domainReqsTransferMain-thread
googletagmanager.com3419 KiB55 ms
qualtrics.com26278 KiB
us-gov-pure.cloud8170 KiB
nextdoor.com559 KiB
tiqcdn.com1330 KiB
adoberesources.net120 KiB57 ms
bing.com316 KiB
digitalgov.gov214 KiB
newrelic.com113 KiB
youtube.com212 KiB
launchdarkly.us53 KiB
analytics-sm.com22 KiB

Wasted JavaScript (by bundle)

Transfer-accurate — each bundle's transfer size × its unused %, ranked by wasted bytes (the biggest code-splitting wins). Unused JS also inflates Token Cost (TC).

BundleTransferUnusedWasted
https://frontend.medicare.gov/assets/index-BpkP_SZl.js375 KiB64.3%241 KiB
https://www.googletagmanager.com/gtag/js?id=DC-4468676&cx=c&gtm=4e67f0 3P133 KiB76.5%102 KiB
https://apps.use2.us-gov-pure.cloud/genesys-bootstrap/genesys.min.js 3P163 KiB56.8%93 KiB
https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L 3P153 KiB51.6%79 KiB
https://www.googletagmanager.com/gtag/js?id=DC-4468676 3P133 KiB53.3%71 KiB
https://gov1.siteintercept.qualtrics.com/dxjsmodule/21.8406501d83075dfeb801.chunk.js?Q_CLIENTVERSION=2.53.0&Q_CLIENTTYPE=web&Q_BRANDID=medicare 3P66 KiB78.1%52 KiB
https://www.medicare.gov/sites/default/files/js/js_EzPXFpge0SStvzG8qMX2qFUKviHmRZO4tzppkszHjyA.js?scope=footer&delta=0&language=en&theme=medicare_evo&include=eJyNkmFuwzAIhS-UxEeyqE0dVmIysLP29qPq1Gaa1vbfAz4b8zDkhWrMBCzFAuyjyZAxNdEhnTCTiwgpiWaSGu5qOqrUhjUPSaqRuWxxRsiowVA31GiUMf6pOq8YkiyrVM_atHiTBIoRNxnHo0h7A9JlPLCk0wtwlgVXKDjOqPKCpUqNoNGGL0BD0DS_1b_BYSS3YPRUvrFZ-wo8QW9yPcbYfvqR26nVSx-fHfUyXYccjm4yfKH5HGGnJ9vKdFCo2Z4iqVuT57eYMOXh8ewFiH11pfY17INhP1koLAfg0dqFqZbfNR-a8ZEqWFGBw822yFBL95X8C6xEQ0Ng6gt9hruKYJeaBv9YDc8RKN7wgOfE3T-aYsHzN4K5HDk43 KiB63.9%28 KiB
https://gov1.siteintercept.qualtrics.com/dxjsmodule/941.769e075aa2ef88969a43.chunk.js?Q_CLIENTVERSION=2.53.0&Q_CLIENTTYPE=web&Q_BRANDID=www.medicare.gov 3P39 KiB58.9%23 KiB
https://gov1.siteintercept.qualtrics.com/dxjsmodule/CoreModule.js?Q_CLIENTVERSION=2.53.0&Q_CLIENTTYPE=web&Q_BRANDID=medicare 3P34 KiB63.9%22 KiB
https://www.medicare.gov/static/bd6d0de7ac13354994b8f762fa69d172d6750013ed707758 KiB35.2%21 KiB
https://tealium-tags.medicare.gov/medicare-www/prod/utag.js40 KiB50.9%20 KiB
https://www.medicare.gov/sites/default/files/js/js_nskFwwdKSukZ3Wou5UoUwWUlZptDItnloq-zRqX-i_w.js?scope=footer&delta=4&language=en&theme=medicare_evo&include=eJyNkmFuwzAIhS-UxEeyqE0dVmIysLP29qPq1Gaa1vbfAz4b8zDkhWrMBCzFAuyjyZAxNdEhnTCTiwgpiWaSGu5qOqrUhjUPSaqRuWxxRsiowVA31GiUMf6pOq8YkiyrVM_atHiTBIoRNxnHo0h7A9JlPLCk0wtwlgVXKDjOqPKCpUqNoNGGL0BD0DS_1b_BYSS3YPRUvrFZ-wo8QW9yPcbYfvqR26nVSx-fHfUyXYccjm4yfKH5HGGnJ9vKdFCo2Z4iqVuT57eYMOXh8ewFiH11pfY17INhP1koLAfg0dqFqZbfNR-a8ZEqWFGBw822yFBL95X8C6xEQ0Ng6gt9hruKYJeaBv9YDc8RKN7wgOfE3T-aYsHzN4K5HDk23 KiB85.5%19 KiB
https://ads.nextdoor.com/v2/public/pixel/advmtch.js 3P37 KiB48.9%18 KiB
https://gov1.siteintercept.qualtrics.com/dxjsmodule/881.aef18691518ab4d98fec.chunk.js?Q_CLIENTVERSION=2.53.0&Q_CLIENTTYPE=web&Q_BRANDID=www.medicare.gov 3P18 KiB89.3%17 KiB
https://gov1.siteintercept.qualtrics.com/dxjsmodule/913.945f0333f442a935be1e.chunk.js?Q_CLIENTVERSION=2.53.0&Q_CLIENTTYPE=web&Q_BRANDID=medicare 3P40 KiB41.2%16 KiB

Network

146Requests
2226 KiBTransferred
64Scripts
46.7%3rd-party
10Long tasks
Script (64)
1815 KiB
Image (28)
192 KiB
Stylesheet (5)
96 KiB
Font (3)
63 KiB
Document (7)
31 KiB
XHR (16)
20 KiB
Fetch (12)
4 KiB
Ping (3)
3 KiB
Other (8)
2 KiB
Heaviest requests (30)
URLTypeStatusTransfer
https://frontend.medicare.gov/assets/index-BpkP_SZl.jsScript200375 KiB
https://apps.use2.us-gov-pure.cloud/genesys-bootstrap/genesys.min.jsScript200163 KiB
https://www.medicare.gov/T8WErIWhl52VtYJn4NRF0fZl/EGEOmrca1hDYJX/ADJc/Kww6QU8/hCyABScript200161 KiB
https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4LScript200153 KiB
https://www.googletagmanager.com/gtag/js?id=DC-4468676Script200133 KiB
https://www.googletagmanager.com/gtag/js?id=DC-4468676&cx=c&gtm=4e67f0Script200133 KiB
https://gov1.siteintercept.qualtrics.com/dxjsmodule/21.8406501d83075dfeb801.chunk.js?Q_CLIENTVERSION=2.53.0&Q_CLIENTTYPE=web&Q_BRANDID=medicareScript20066 KiB
https://www.medicare.gov/static/bd6d0de7ac13354994b8f762fa69d172d6750013ed7077Script20058 KiB
https://frontend.medicare.gov/assets/index-BUIvh5r-.cssStylesheet20057 KiB
https://www.medicare.gov/sites/default/files/styles/hero_image_775/public/202-260324_ShutterstockCustom_MedicarePortraits_043%20resized%20for%20hero%20without%20background.png.webp?itok=-nOrghXUImage20044 KiB
https://www.medicare.gov/sites/default/files/js/js_EzPXFpge0SStvzG8qMX2qFUKviHmRZO4tzppkszHjyA.js?scope=footer&delta=0&language=en&theme=medicare_evo&include=eJyNkmFuwzAIhS-UxEeyqE0dVmIysLP29qPq1Gaa1vbfAz4b8zDkhWrMBCzFAuyjyZAxNdEhnTCTiwgpiWaSGu5qOqrUhjUPSaqRuWxxRsiowVA31GiUMf6pOq8YkiyrVM_atHiTBIoRNxnHo0h7A9JlPLCk0wtwlgVXKDjOqPKCpUqNoNGGL0BD0DS_1b_BYSS3YPRUvrFZ-wo8QW9yPcbYfvqR26nVSx-fHfUyXYccjm4yfKH5HGGnJ9vKdFCo2Z4iqVuT57eYMOXh8ewFiH11pfY17INhP1koLAfg0dqFqZbfNR-a8ZEqWFGBw822yFBL95X8C6xEQ0Ng6gt9hruKYJeaBv9YDc8RKN7wgOfE3T-aYsHzN4K5HDkScript20043 KiB
https://www.medicare.gov/sites/default/files/styles/16_9_713x401/public/2-20250610_MedicareLifestyle_062%20cropped%20and%20resized.jpg.webp?itok=AqJvSHbmImage20041 KiB
https://tealium-tags.medicare.gov/medicare-www/prod/utag.jsScript20040 KiB
https://gov1.siteintercept.qualtrics.com/dxjsmodule/913.945f0333f442a935be1e.chunk.js?Q_CLIENTVERSION=2.53.0&Q_CLIENTTYPE=web&Q_BRANDID=medicareScript20040 KiB
https://gov1.siteintercept.qualtrics.com/dxjsmodule/941.769e075aa2ef88969a43.chunk.js?Q_CLIENTVERSION=2.53.0&Q_CLIENTTYPE=web&Q_BRANDID=www.medicare.govScript20039 KiB
https://ads.nextdoor.com/v2/public/pixel/advmtch.jsScript20037 KiB
https://gov1.siteintercept.qualtrics.com/dxjsmodule/CoreModule.js?Q_CLIENTVERSION=2.53.0&Q_CLIENTTYPE=web&Q_BRANDID=medicareScript20034 KiB
https://www.medicare.gov/static/bd6d0de7ac13354994b8f762fa69d172d6750013ed7077/e/65226_747628217.jsScript20033 KiB
https://www.medicare.gov/Document20031 KiB
https://www.medicare.gov/sites/default/files/css/css_-0AK3eQFlmWUvvy94oAj0cqYZsRUNPQ0b7Iyc-1adUI.css?delta=4&language=en&theme=medicare_evo&include=eJyNUtFuwzAI_KE4_iSL2CRBtY2FSaf8_Vhbtc02KX0D7g7EQbxgImUJECNLIq7-GY2zcFWsaYhcO3ULNawICcV3lCtK6JQw_EGNL-gjl8bVqn0sNiSCYMArOxdX1zJEXDmfk2dm_YAkxU2Z4-WEuHLBBgu6FYVPuFRJCZSueELsCGI7fTJfYXJkfjkrpTs3ydYgj7Ap_8gyKg4vUQHK5vJSt-bfk-G9r5_tTg6-sNt6R2TJPEF2j7v8B3XdM9XliGXYedOnXUewCRWQ3cXbd-gLvKu6n6CbxPxjgbpg6FCy_5WPkKwy9N0ep9wU33ln_PkStylesheet20029 KiB
https://www.medicare.gov/themes/custom/medicare_evo/dist/images/homepage-hero-upper-stroke.svgImage20026 KiB
https://www.medicare.gov/themes/custom/medicare_evo/dist/fonts/rubik/rubik-latin-400.woff2Font20023 KiB
https://www.medicare.gov/sites/default/files/js/js_nskFwwdKSukZ3Wou5UoUwWUlZptDItnloq-zRqX-i_w.js?scope=footer&delta=4&language=en&theme=medicare_evo&include=eJyNkmFuwzAIhS-UxEeyqE0dVmIysLP29qPq1Gaa1vbfAz4b8zDkhWrMBCzFAuyjyZAxNdEhnTCTiwgpiWaSGu5qOqrUhjUPSaqRuWxxRsiowVA31GiUMf6pOq8YkiyrVM_atHiTBIoRNxnHo0h7A9JlPLCk0wtwlgVXKDjOqPKCpUqNoNGGL0BD0DS_1b_BYSS3YPRUvrFZ-wo8QW9yPcbYfvqR26nVSx-fHfUyXYccjm4yfKH5HGGnJ9vKdFCo2Z4iqVuT57eYMOXh8ewFiH11pfY17INhP1koLAfg0dqFqZbfNR-a8ZEqWFGBw822yFBL95X8C6xEQ0Ng6gt9hruKYJeaBv9YDc8RKN7wgOfE3T-aYsHzN4K5HDkScript20023 KiB
https://ads.nextdoor.com/public/pixel/ndp.jsScript20022 KiB
https://frontend.medicare.gov/assets/sourcesanspro-regular-webfont-BZtNapR-.woff2Font20020 KiB
https://cdn1.adoberesources.net/alloy/2.6.4/alloy.min.jsScript20020 KiB
https://gov1.siteintercept.qualtrics.com/dxjsmodule/FeedbackButtonModule.js?Q_CLIENTVERSION=2.53.0&Q_CLIENTTYPE=web&Q_BRANDID=medicareScript20020 KiB
https://www.medicare.gov/themes/custom/medicare_evo/dist/fonts/montserrat/montserrat-latin-600.woff2Font20019 KiB
https://www.medicare.gov/static/bd6d0de7ac13354994b8f762fa69d172d6750013ed7077/e/65319_1825172608.jsScript20019 KiB
https://gov1.siteintercept.qualtrics.com/dxjsmodule/881.aef18691518ab4d98fec.chunk.js?Q_CLIENTVERSION=2.53.0&Q_CLIENTTYPE=web&Q_BRANDID=www.medicare.govScript20018 KiB

Long tasks (>50 ms)

StartDuration
3106 ms480 ms
1009 ms281 ms
302 ms168 ms
1296 ms136 ms
898 ms111 ms
5817 ms105 ms
2299 ms85 ms
3605 ms76 ms
132 ms72 ms
1793 ms66 ms
Analyzing…
running mobile + desktop · ~30s