← Analyze a URL · Tested sites

www.nationalgeographic.com

Report from 7/24/2026, 1:36:03 PM https://www.nationalgeographic.com
Latest run · lab, cold cache
82
7/24/2026
28-day score · p75 · the standard
82
11 runs
CRR100%latest
SSD69%latest
TC828 toklatest
TTFUT367 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/nationalgeographic.com.svg)](https://agentvitals.dev/results?url=https%3A%2F%2Fwww.nationalgeographic.com)
<a href="https://agentvitals.dev/results?url=https%3A%2F%2Fwww.nationalgeographic.com"><img src="https://agentvitals.dev/badge/nationalgeographic.com.svg" alt="Core Agent Vitals" height="20"></a>
What AI tells your customers about youAgent confidence: MEDIUM
✅Business nameNational Geographic
✅CategoryNewsMediaOrganization
❌Pricenot found
✅Location1145 17th Street NW, Washington, DC, 20036, US
❌Hoursnot found
❌Productsnot found
✅DescriptionNational Geographic is a global media organization known for award-winning journalism in science, history, travel, photography, and environmental reporting.

An agent gets the basics but will guess on the gaps. 4/7 applicable facts come from machine-readable structured data.

DesktopMobile
82
Overall score
weighted CAV (0–100)
PASS
0–4950–8990–100

Metrics

100%
CRR Content Recovery Good
0.69
SSD Semantic Signal Density Good
828 tok
TC Token Cost Good
280 ms
TTFUT Time to First Useful Token N/A

Token Cost breakdown

Where the page's tokens go (≈15,238 across regions). 48% is non-content — chrome and boilerplate an agent pays for. Add landmark roles (main/nav/header/footer) so agents can skip it.

Content
51.9% · 7,911
Chrome (nav / header / footer)
29% · 4,413
Boilerplate (cookie / ad)
0% · 0
Other
19.1% · 2,914

Final screenshot

Final screenshot of https://www.nationalgeographic.com

Diagnostics

medium TC 48.1% of tokens are non-content (boilerplate/chrome)

agent representation — token decomposition

EvidenceToken decomposition: content 51.9%, chrome 29%, boilerplate 0%, other 19.1%. Only 51.9% 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 86/100 · Agent Ready

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 Found at /sitemap.xml Learn →
✓ JSON-LD structured data Types: WebPage, WebSite, NewsMediaOrganization, ImageObject, BreadcrumbList, ItemList Learn →
~ agents.json Absent (emerging standard) Learn →
~ WebMCP endpoint Absent (emerging standard) Learn →
~ OpenAPI / API docs No OpenAPI/Swagger found Learn →

Issues (4)

✗ 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

~ 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 (7)

✓ robots.txt allows AI bots✓ No CAPTCHA wall✓ No content-blocking cookie wall✓ No login wall on public content✓ Structured data (JSON-LD)✓ XML sitemap present + fresh✓ 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.

37Transport posture (0–100, unscored)
1pass
1warn
3fail
Per-header findings (6)
HeaderEvidence
✅ HTTPSserved over HTTPS
❌ HSTSno strict-transport-security header
❌ Content-Security-Policyno content-security-policy header
❌ X-Content-Type-Optionsmissing nosniff
⚠️ 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

883-f9e185fa.js — 834 KiB transferred, 57.6% unused

EvidenceCDP JS coverage: 480 KiB of this bundle is never executed on load.
Impact~-480 KiB transfer; lower Token Cost + faster agent parse.
Effort30–90 min
FixDynamic-import() the below-the-fold parts of 883-f9e185fa.js, or drop unused dependencies.
highCut third-party weight

natgeofe.com — 1810 KiB, 101 requests

EvidenceThird-party is 66.8% of total transfer (278 requests); natgeofe.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 natgeofe.com; defer non-critical third-party scripts.
highSpeed up main-content render

largest contentful paint

EvidenceLCP is 14.7s.
ImpactFaster usable content; SSR also raises CRR.
Effort1–4 h
FixPreload the hero image/font, remove render-blocking resources, and server-render the main content.
highBreak up long main-thread tasks

longest task 1320 ms (10 total)

EvidenceMain thread blocked 1320 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.
mediumReduce layout shift

cumulative layout shift

EvidenceCLS is 0.185.
ImpactStable layout for render + screenshot.
Effort30–60 min
FixSet explicit width/height on images; reserve space for late-loading content.
mediumCut total transfer weight

5.9 MB total

Evidence5.9 MB transferred.
ImpactCheaper, faster fetch on slow links.
Effort1–3 h
FixEnable Brotli, serve WebP/AVIF images, defer non-critical resources.

Third-party impact

278 third-party requests · 4044 KiB (66.8% of transfer) · 5498 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
natgeofe.com1011810 KiB—
googletagmanager.com4582 KiB1032 ms
espn.com14307 KiB1760 ms
doubleclick.net7223 KiB606 ms
tiktok.com7162 KiB112 ms
facebook.net2159 KiB672 ms
bamgrid.com7144 KiB20 ms
webcontentassessor.com1107 KiB—
appboycdn.com175 KiB238 ms
braze-images.com162 KiB—
disneyaccount.com153 KiB104 ms
datadoghq-browser-agent.com152 KiB59 ms

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://assets-cdn.nationalgeographic.com/natgeo/661707b8f077-release-07-07-2026.10/client/natgeo/883-f9e185fa.js834 KiB57.6%480 KiB
https://assets-cdn.nationalgeographic.com/natgeo/661707b8f077-release-07-07-2026.10/client/natgeo/5246-ce11e8ee.js420 KiB55.5%233 KiB
https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202607140101/pubads_impl.js 3P195 KiB70.6%138 KiB
https://hiveplayer-static.bamgrid.com/artifacts/hive/playback-service/26.7.1-ghost/all_browser_es5/playback-service.js 3P129 KiB84.5%109 KiB
https://www.googletagmanager.com/gtag/js?id=DC-8389014 3P134 KiB65.5%88 KiB
https://www.googletagmanager.com/gtag/destination?id=AW-970597622&cx=c&gtm=4e67f0 3P155 KiB49.9%77 KiB
https://www.googletagmanager.com/gtag/js?id=AW-17574768780 3P151 KiB50%76 KiB
https://www.googletagmanager.com/gtag/js?id=AW-876804081 3P142 KiB53.2%76 KiB
https://dcf.espn.com/TWDC-DTCI/prod/Bootstrap.js 3P121 KiB56.2%68 KiB
https://analytics.tiktok.com/i18n/pixel/static/main.MTA2MWE1OWMwMQ.js 3P114 KiB58.5%67 KiB
https://js.appboycdn.com/web-sdk/6.9/braze.min.js 3P75 KiB74.9%56 KiB
https://connect.facebook.net/en_US/fbevents.js 3P103 KiB46%47 KiB
https://dcf.espn.com/TWDC-DTCI/prod/code/fbf6a0129ee8414f3cde54e75789b832.js?conditionId0=4952847 3P55 KiB78%43 KiB
https://cdn.disneyaccount.com/v5/sdk.js 3P53 KiB76.7%41 KiB
https://dcf.espn.com/TWDC-DTCI/prod/code/fe4ed63518a42212d0bff630eb10347c.js?conditionId0=4898178 3P57 KiB69.7%40 KiB

Network

337Requests
6055 KiBTransferred
66Scripts
66.8%3rd-party
10Long tasks
Script (66)
3517 KiB
Image (119)
1879 KiB
Font (5)
187 KiB
XHR (23)
169 KiB
Stylesheet (17)
153 KiB
Document (6)
78 KiB
Fetch (80)
44 KiB
Other (15)
24 KiB
Ping (6)
4 KiB
Heaviest requests (30)
URLTypeStatusTransfer
https://assets-cdn.nationalgeographic.com/natgeo/661707b8f077-release-07-07-2026.10/client/natgeo/883-f9e185fa.jsScript200834 KiB
https://assets-cdn.nationalgeographic.com/natgeo/661707b8f077-release-07-07-2026.10/client/natgeo/5246-ce11e8ee.jsScript200420 KiB
https://i.natgeofe.com/n/e1ac8d21-0d5f-4f02-b505-070fcda73b94/SPI-2823174_2x1.jpg?wp=1&w=1440&h=720Image200222 KiB
https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202607140101/pubads_impl.jsScript200195 KiB
https://i.natgeofe.com/n/7182c9cb-b0f1-4490-8386-ce2ae7ab900a/nationalgeographic_2384595_3x2.jpg?wp=1&w=1440&h=960Image200158 KiB
https://www.googletagmanager.com/gtag/destination?id=AW-970597622&cx=c&gtm=4e67f0Script200155 KiB
https://www.googletagmanager.com/gtag/js?id=AW-17574768780Script200151 KiB
https://i.natgeofe.com/n/2e2421a3-f3cb-485f-b482-753cce8baaa0/MossForest.adapt.885.1.jpg?wp=1&w=1350Image200144 KiB
https://www.googletagmanager.com/gtag/js?id=AW-876804081Script200142 KiB
https://www.googletagmanager.com/gtag/js?id=DC-8389014Script200134 KiB
https://hiveplayer-static.bamgrid.com/artifacts/hive/playback-service/26.7.1-ghost/all_browser_es5/playback-service.jsScript200129 KiB
https://dcf.espn.com/TWDC-DTCI/prod/Bootstrap.jsScript200121 KiB
https://analytics.tiktok.com/i18n/pixel/static/main.MTA2MWE1OWMwMQ.jsScript200114 KiB
https://scripts.webcontentassessor.com/scripts/340714530193d9627afecb7a2bab115079ee90db012cba398ac76b3339880fdcScript200107 KiB
https://i.natgeofe.com/n/8c299589-e7cd-43a1-b5fd-65cdbbceeab7/151019_BURKARD_155687_4x3.jpg?wp=1&w=718&h=539Image200107 KiB
https://connect.facebook.net/en_US/fbevents.jsScript200103 KiB
https://i.natgeofe.com/n/6a40e09b-083f-42c8-93a5-721f734f5c0c/BAL_5396899_4x3.JPG?wp=1&w=718&h=539Image20084 KiB
https://assets-cdn.nationalgeographic.com/natgeo/661707b8f077-release-07-07-2026.10/client/natgeo/natgeo-1028e4a2.jsScript20079 KiB
https://www.nationalgeographic.com/Document20078 KiB
https://js.appboycdn.com/web-sdk/6.9/braze.min.jsScript20075 KiB
https://assets-cdn.nationalgeographic.com/natgeo/static/icons/Symbol_Defs--v41.svgXHR20071 KiB
https://i.natgeofe.com/n/270ac6df-5dbc-4521-b613-380461014fb5/STOCK_MM10453_CaitBourgault_QuoddyHeadphoto2-crop_4x3.jpg?wp=1&w=718&h=539Image20071 KiB
https://braze-images.com/appboy/communication/assets/image_assets/images/6a57f88701e9ba0086ac7de0/original.jpg?1784150150Image20062 KiB
https://assets-cdn.nationalgeographic.com/natgeo/661707b8f077-release-07-07-2026.10/client/natgeo/css/fusion-a13d5fb7.cssStylesheet20060 KiB
https://dcf.espn.com/TWDC-DTCI/prod/code/fe4ed63518a42212d0bff630eb10347c.js?conditionId0=4898178Script20057 KiB
https://connect.facebook.net/signals/config/1549412225443134?v=2.9.357&r=stable&domain=www.nationalgeographic.com&hme=1179b74563cacb97c6ebae600e40937237ab12824fb84996eee07eca65cabbd4&ex_m=107%2C208%2C158%2C22%2C73%2C74%2C149%2C69%2C68%2C11%2C167%2C93%2C16%2C141%2C130%2C39%2C76%2C81%2C137%2C163%2C169%2C26%2C27%2C28%2C30%2C48%2C150%2C78%2C115%2C18%2C20%2C44%2C40%2C42%2C41%2C86%2C95%2C99%2C113%2C148%2C151%2C46%2C114%2C24%2C21%2C122%2C70%2C36%2C153%2C152%2C154%2C145%2C143%2C25%2C35%2C59%2C112%2C165%2C71%2C17%2C156%2C117%2C84%2C67%2C19%2C88%2C89%2C119%2C87%2C139%2C138%2C142%2C164%2C34%2C49%2C116%2C47%2C8%2C4%2C5%2C7%2C6%2C3%2C94%2C104%2C170%2C175%2C222%2C75%2C235%2C234%2C233%2C23%2C33%2C55%2C106%2C61%2C10%2C64%2C100%2C101%2C102%2C108%2C133%2C31%2C29%2C135%2C136%2C132%2C131%2C159%2C77%2C162%2C160%2C161%2C50%2C60%2C126%2C15%2C166%2C45%2C280%2C281%2C279%2C294%2C310%2C215%2C204%2C62%2C205%2C203%2C313%2C304%2C52%2C216%2C110%2C134%2C83%2C124%2C54%2C123%2C129%2C128%2C58%2C65%2C63%2C155%2C79%2C80%2C118%2C37%2C32%2C53%2C56%2C103%2C168%2C1%2C127%2C14%2C125%2C12%2C2%2C57%2C96%2C66%2C121%2C92%2C91%2C171%2C172%2C97%2C98%2C9%2C105%2C51%2C146%2C90%2C82%2C72%2C120%2C109%2C43%2C147%2C0%2C85%2C140%2C144%2C157%2C38%2C111%2C13%2C173Script20056 KiB
https://dcf.espn.com/TWDC-DTCI/prod/code/fbf6a0129ee8414f3cde54e75789b832.js?conditionId0=4952847Script20055 KiB
https://cdn.disneyaccount.com/v5/sdk.jsScript20053 KiB
https://www.datadoghq-browser-agent.com/us1/v5/datadog-rum.jsScript20052 KiB
https://micro.rubiconproject.com/prebid/dynamic/18138.jsScript20046 KiB

Long tasks (>50 ms)

StartDuration
4965 ms1320 ms
6886 ms1200 ms
11559 ms724 ms
12284 ms625 ms
10898 ms607 ms
4187 ms606 ms
1987 ms428 ms
1273 ms387 ms
13707 ms377 ms
8092 ms293 ms
Analyzing…
running mobile + desktop · ~30s