www.cnbc.com
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.
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Show your agent-readiness score anywhere — it links back to this report.
[](https://agentvitals.dev/results?url=https%3A%2F%2Fwww.cnbc.com)
<a href="https://agentvitals.dev/results?url=https%3A%2F%2Fwww.cnbc.com"><img src="https://agentvitals.dev/badge/cnbc.com.svg" alt="Core Agent Vitals" height="20"></a>
An agent is likely to fabricate missing details rather than say “I don’t know”. 0/4 applicable facts come from machine-readable structured data.
Metrics
Token Cost breakdown
Where the page's tokens go (≈23,236 across regions). Most tokens are real content — the agent isn't paying much for chrome.
Final screenshot
Diagnostics
pre-JS raw HTML
Fix: Server-render or statically generate the main content so a non-JS agent still receives it; make client rendering a progressive enhancement, not the source of truth.
content vs chrome/boilerplate
Fix: Wrap the real content in <main>/<article>, cut repeated nav/boilerplate, and keep the primary content dense and early in the DOM.
Rendered profile: headless
Metrics
Token Cost breakdown
Where the page's tokens go (≈21,189 across regions). Most tokens are real content — the agent isn't paying much for chrome.
Final screenshot
Diagnostics
pre-JS raw HTML
Fix: Server-render or statically generate the main content so a non-JS agent still receives it; make client rendering a progressive enhancement, not the source of truth.
content vs chrome/boilerplate
Fix: Wrap the real content in <main>/<article>, cut repeated nav/boilerplate, and keep the primary content dense and early in the DOM.
Rendered profile: headless
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
Issues (7)
✗ robots.txt allows AI bots high impact Blocks: GPTBot, ChatGPT-User, OAI-SearchBot, ClaudeBot, Claude-Web, anthropic-ai, PerplexityBot, Google-Extended, Applebot-Extended, CCBot, Bytespider, cohere-ai, Diffbot, FacebookBot, Amazonbot
Business impact If robots.txt blocks AI crawlers you are invisible to ChatGPT, Claude and Perplexity — they skip you and recommend a competitor instead.
What we measured We read /robots.txt and test it against 16 AI user-agents (GPTBot, ClaudeBot, PerplexityBot, …) for a Disallow that blocks them.
How to fix Allow major AI bots to public content; restrict only private paths (/admin, /api).
User-agent: GPTBot
Allow: /
Disallow: /admin/~ No content-blocking cookie wall medium impact Consent platform: onetrust (verify it doesn't block content)
Business impact A consent wall that hides content until a click is invisible to agents — they cannot click 'Accept'.
What we measured We fingerprint OneTrust, Cookiebot, Usercentrics and similar managers and flag content-blocking ones.
How to fix Use an overlay banner that leaves content in the DOM, not a blocking interstitial.
Spec: https://gdpr.eu/cookies/
✗ 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.
# Your Site
> One-line description for AI agents.
## Key pages
- /products — catalog
- /pricing — plans
- /docs — documentationSpec: https://llmstxt.org
✗ XML sitemap present medium impact No /sitemap.xml
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.
# robots.txt
Sitemap: https://example.com/sitemap.xml~ 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.
~ 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.
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.
Passed audits (5)
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.
Per-header findings (6)
| Header | Evidence |
|---|---|
| ✅ HTTPS | served over HTTPS |
| ❌ HSTS | no strict-transport-security header |
| ✅ Content-Security-Policy | policy present, script-src does not allow inline |
| ❌ X-Content-Type-Options | missing nosniff |
| ⚠️ Referrer-Policy | no referrer-policy header (browser default applies) |
| ✅ CORS exposure | access-control-allow-origin: * |
How to improve
whole profile
Third-party impact
276 third-party requests · 5622 KiB (83.9% of transfer) · 578 ms main-thread — code an agent must also fetch/run before your content settles. Fewer, lazier third-parties = faster, cheaper agent reads.
| Third-party domain | Reqs | Transfer | Main-thread |
|---|---|---|---|
| cnbcfm.com | 70 | 2241 KiB | 536 ms |
| googletagmanager.com | 7 | 1085 KiB | — |
| gstatic.com | 1 | 346 KiB | — |
| doubleclick.net | 12 | 279 KiB | — |
| amplitude.com | 12 | 258 KiB | — |
| cookielaw.org | 12 | 253 KiB | — |
| adobedtm.com | 23 | 194 KiB | 42 ms |
| tinypass.com | 3 | 139 KiB | — |
| amazon-adsystem.com | 4 | 98 KiB | — |
| imrworldwide.com | 4 | 81 KiB | — |
| vsnt.net | 2 | 78 KiB | — |
| mparticle.com | 6 | 61 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).
| Bundle | Transfer | Unused | Wasted |
|---|---|---|---|
| https://static-redesign.cnbcfm.com/dist/main-ab47e61485b584136054.js 3P | 740 KiB | 60.5% | 448 KiB |
| https://www.gstatic.com/recaptcha/releases/zqB-6Xpbd3lCIvi7Tr2D0pob/recaptcha__en.js 3P | 346 KiB | 68.1% | 236 KiB |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202609140101/pubads_impl.js?cb=122881037 3P | 211 KiB | 62.2% | 131 KiB |
| https://www.googletagmanager.com/gtag/js?id=AW-304008397&cx=c>m=4e69f3 3P | 162 KiB | 71.5% | 116 KiB |
| https://www.googletagmanager.com/gtag/js?id=AW-491671965&cx=c>m=4e69f3 3P | 161 KiB | 72% | 116 KiB |
| https://cdn.amplitude.com/libs/plugin-session-replay-browser-1.32.1-min.js.gz 3P | 140 KiB | 82.2% | 115 KiB |
| https://www.googletagmanager.com/gtag/js?id=AW-10885207244&cx=c>m=4e69f3 3P | 149 KiB | 74.9% | 112 KiB |
| https://static-redesign.cnbcfm.com/dist/83006-dd3063a49686eef3e207.js 3P | 153 KiB | 71.1% | 109 KiB |
| https://cdn.tinypass.com/api/tinypass.min.js 3P | 138 KiB | 62.4% | 86 KiB |
| https://www.googletagmanager.com/gtag/js?id=AW-491671965 3P | 161 KiB | 50.1% | 80 KiB |
| https://www.googletagmanager.com/gtag/js?id=AW-304008397 3P | 162 KiB | 49.4% | 80 KiB |
| https://cdn.cookielaw.org/scripttemplates/202601.1.0/otBannerSdk.js 3P | 127 KiB | 61.8% | 78 KiB |
| https://www.googletagmanager.com/gtag/js?id=AW-10885207244 3P | 149 KiB | 50.5% | 76 KiB |
| https://www.googletagmanager.com/gtag/js?id=DC-10486893 3P | 140 KiB | 51.6% | 72 KiB |
| https://cdn-gl.imrworldwide.com/novms/js/2/nlsSDK600.bundle.min.js 3P | 74 KiB | 73.4% | 54 KiB |
Network
Heaviest requests (30)
| URL | Type | Status | Transfer |
|---|---|---|---|
| https://www.cnbc.com/ | Document | 200 | 1031 KiB |
| https://static-redesign.cnbcfm.com/dist/92419-fa773ce0626ae8dd7536.js | Script | 200 | 858 KiB |
| https://static-redesign.cnbcfm.com/dist/main-ab47e61485b584136054.js | Script | 200 | 740 KiB |
| https://www.gstatic.com/recaptcha/releases/zqB-6Xpbd3lCIvi7Tr2D0pob/recaptcha__en.js | Script | 200 | 346 KiB |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202609140101/pubads_impl.js?cb=122881037 | Script | 200 | 211 KiB |
| https://www.googletagmanager.com/gtag/js?id=AW-304008397&cx=c>m=4e69f3 | Script | 200 | 162 KiB |
| https://www.googletagmanager.com/gtag/js?id=AW-304008397 | Script | 200 | 162 KiB |
| https://assets.adobedtm.com/77ca722dd820/bbaaa56c8833/launch-50229149d3cf.min.js | Script | 200 | 162 KiB |
| https://www.googletagmanager.com/gtag/js?id=AW-491671965&cx=c>m=4e69f3 | Script | 200 | 161 KiB |
| https://www.googletagmanager.com/gtag/js?id=AW-491671965 | Script | 200 | 161 KiB |
| https://static-redesign.cnbcfm.com/dist/83006-dd3063a49686eef3e207.js | Script | 200 | 153 KiB |
| https://www.googletagmanager.com/gtag/js?id=AW-10885207244 | Script | 200 | 149 KiB |
| https://www.googletagmanager.com/gtag/js?id=AW-10885207244&cx=c>m=4e69f3 | Script | 200 | 149 KiB |
| https://www.googletagmanager.com/gtag/js?id=DC-10486893 | Script | 200 | 140 KiB |
| https://cdn.amplitude.com/libs/plugin-session-replay-browser-1.32.1-min.js.gz | Script | 200 | 140 KiB |
| https://cdn.tinypass.com/api/tinypass.min.js | Script | 200 | 138 KiB |
| https://cdn.cookielaw.org/scripttemplates/202601.1.0/otBannerSdk.js | Script | 200 | 127 KiB |
| https://c.amazon-adsystem.com/aax2/apstag.js | Script | 200 | 93 KiB |
| https://cdn-gl.imrworldwide.com/novms/js/2/nlsSDK600.bundle.min.js | Script | 200 | 74 KiB |
| https://cdn.cookielaw.org/consent/01980fea-4b68-707d-9883-dfe20e2ff84a/0197566f-2a35-7fae-b09f-87ef970464fd/en.json | Fetch | 200 | 64 KiB |
| https://jssdkcdns.mparticle.com/js/v2/us1-99f689156b88a84fbe3383020acfea25/mparticle.js | Script | 200 | 60 KiB |
| https://cdn.amplitude.com/libs/analytics-browser-2.42.4-min.js.gz | Script | 200 | 59 KiB |
| https://app.mps.vsnt.net/fetch/ext/load-cnbc-web.js?nowrite=2 | Script | 200 | 57 KiB |
| https://cdn.amplitude.com/script/62f692ae4fb5e969ec8d0521818bf2c0.js | Script | 200 | 56 KiB |
| https://ak.sail-horizon.com/spm/spm.v1.min.js | Script | 200 | 49 KiB |
| https://micro.rubiconproject.com/prebid/dynamic/27850.js | Script | 200 | 46 KiB |
| https://entitlement.auth.adobe.com/entitlement/v4/AccessEnabler.js | Script | 200 | 39 KiB |
| https://cdn.cxense.com/cx.js | Script | 200 | 38 KiB |
| https://securepubads.g.doubleclick.net/tag/js/gpt.js | Script | 200 | 37 KiB |
| https://cdn.id5-sync.com/api/1.0/esp.js | Script | 200 | 35 KiB |
Long tasks (>50 ms)
| Start | Duration |
|---|---|
| 501 ms | 183 ms |
| 352 ms | 120 ms |
| 915 ms | 91 ms |
| 2034 ms | 65 ms |