← Analyze a URL · Tested sites

www.nationalgeographic.com

Report from 8/10/2026, 1:04:41 PM https://www.nationalgeographic.com
Latest run · lab, cold cache
82
8/10/2026
28-day score · p75 · the standard
82
24 runs
CRR100%latest
SSD70%latest
TC848 toklatest
TTFUT380 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
0.70
SSD Semantic Signal Density Good
848 tok
TC Token Cost Good
313 ms
TTFUT Time to First Useful Token N/A

Token Cost breakdown

Where the page's tokens go (≈16,175 across regions). 52% is non-content — chrome and boilerplate an agent pays for. Add landmark roles (main/nav/header/footer) so agents can skip it.

Content
48.2% · 7,798
Chrome (nav / header / footer)
27.3% · 4,420
Boilerplate (cookie / ad)
0% · 0
Other
24.5% · 3,957

Final screenshot

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

Diagnostics

medium TC 51.8% of tokens are non-content (boilerplate/chrome)

agent representation — token decomposition

EvidenceToken decomposition: content 48.2%, chrome 27.3%, boilerplate 0%, other 24.5%. Only 48.2% 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

883-46f6ddc6.js — 831 KiB transferred, 57.6% unused

EvidenceCDP JS coverage: 479 KiB of this bundle is never executed on load.
Impact~-479 KiB transfer; lower Token Cost + faster agent parse.
Effort30–90 min
FixDynamic-import() the below-the-fold parts of 883-46f6ddc6.js, or drop unused dependencies.
highCut third-party weight

natgeofe.com — 1861 KiB, 109 requests

EvidenceThird-party is 66.8% of total transfer (285 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.
highBreak up long main-thread tasks

longest task 1297 ms (10 total)

EvidenceMain thread blocked 1297 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.
mediumSpeed up main-content render

largest contentful paint

EvidenceLCP is 3.4s.
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.
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

285 third-party requests · 4041 KiB (66.8% of transfer) · 4841 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.com1091861 KiB—
googletagmanager.com4588 KiB453 ms
espn.com14304 KiB1637 ms
doubleclick.net7227 KiB360 ms
tiktok.com7163 KiB134 ms
facebook.net2161 KiB1352 ms
bamgrid.com7127 KiB19 ms
webcontentassessor.com1114 KiB—
appboycdn.com175 KiB254 ms
datadoghq-browser-agent.com155 KiB—
disneyaccount.com154 KiB—
rubiconproject.com146 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://assets-cdn.nationalgeographic.com/natgeo/a4e81e6e1f75-release-08-04-2026.12/client/natgeo/883-46f6ddc6.js831 KiB57.6%479 KiB
https://assets-cdn.nationalgeographic.com/natgeo/a4e81e6e1f75-release-08-04-2026.12/client/natgeo/5246-ce11e8ee.js419 KiB55.5%233 KiB
https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202607290101/pubads_impl.js?cb=122880087 3P199 KiB70.8%141 KiB
https://hiveplayer-static.bamgrid.com/artifacts/hive/playback-service/26.8.2-hankmccoy/all_browser_es5/playback-service.js 3P112 KiB80.1%90 KiB
https://www.googletagmanager.com/gtag/js?id=DC-8389014 3P134 KiB65.7%88 KiB
https://www.googletagmanager.com/gtag/destination?id=AW-970597622&cx=c&gtm=4e67v1 3P158 KiB50.3%79 KiB
https://www.googletagmanager.com/gtag/js?id=AW-17574768780 3P154 KiB50.5%78 KiB
https://www.googletagmanager.com/gtag/js?id=AW-876804081 3P143 KiB53.4%76 KiB
https://dcf.espn.com/TWDC-DTCI/prod/Bootstrap.js 3P121 KiB56.2%68 KiB
https://analytics.tiktok.com/i18n/pixel/static/main.MTAwMWEwYTFlMQ.js 3P115 KiB58.6%67 KiB
https://js.appboycdn.com/web-sdk/6.9/braze.min.js 3P75 KiB75.8%57 KiB
https://connect.facebook.net/en_US/fbevents.js 3P104 KiB45.3%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 3P54 KiB76.7%41 KiB
https://dcf.espn.com/TWDC-DTCI/prod/code/69baf3c8016d54855b4bb148891395a0.js?conditionId0=4898178 3P53 KiB70.9%38 KiB

Network

343Requests
6053 KiBTransferred
66Scripts
66.8%3rd-party
10Long tasks
Script (66)
3521 KiB
Image (130)
1869 KiB
Font (5)
187 KiB
XHR (21)
170 KiB
Stylesheet (17)
153 KiB
Document (6)
82 KiB
Fetch (79)
44 KiB
Other (14)
25 KiB
Ping (5)
3 KiB
Heaviest requests (30)
URLTypeStatusTransfer
https://assets-cdn.nationalgeographic.com/natgeo/a4e81e6e1f75-release-08-04-2026.12/client/natgeo/883-46f6ddc6.jsScript200831 KiB
https://assets-cdn.nationalgeographic.com/natgeo/a4e81e6e1f75-release-08-04-2026.12/client/natgeo/5246-ce11e8ee.jsScript200419 KiB
https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202607290101/pubads_impl.js?cb=122880087Script200199 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=4e67v1Script200158 KiB
https://www.googletagmanager.com/gtag/js?id=AW-17574768780Script200154 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-876804081Script200143 KiB
https://www.googletagmanager.com/gtag/js?id=DC-8389014Script200134 KiB
https://i.natgeofe.com/n/cfa959d8-d656-41dc-9a76-a1cd81df97bb/STOCK_MD0826_IF_20260414__POS8143_2x1.jpg?wp=1&w=1440&h=720Image200122 KiB
https://dcf.espn.com/TWDC-DTCI/prod/Bootstrap.jsScript200121 KiB
https://analytics.tiktok.com/i18n/pixel/static/main.MTAwMWEwYTFlMQ.jsScript200115 KiB
https://scripts.webcontentassessor.com/scripts/340714530193d9627afecb7a2bab115079ee90db012cba398ac76b3339880fdcScript200114 KiB
https://hiveplayer-static.bamgrid.com/artifacts/hive/playback-service/26.8.2-hankmccoy/all_browser_es5/playback-service.jsScript200112 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.jsScript200104 KiB
https://i.natgeofe.com/n/e9278fd7-2393-431c-9a23-d8ea8ac90825/Marcus-Rhinos-Zimbabwe-00163_4x3.jpg?wp=1&w=718&h=539Image200100 KiB
https://www.nationalgeographic.com/Document20082 KiB
https://assets-cdn.nationalgeographic.com/natgeo/a4e81e6e1f75-release-08-04-2026.12/client/natgeo/natgeo-c944e992.jsScript20080 KiB
https://js.appboycdn.com/web-sdk/6.9/braze.min.jsScript20075 KiB
https://i.natgeofe.com/n/b59693e8-57ab-4041-a935-6222c22cbda7/MM10354_260325_000795_4x3.jpg?wp=1&w=718&h=539Image20074 KiB
https://assets-cdn.nationalgeographic.com/natgeo/static/icons/Symbol_Defs--v41.svgXHR20071 KiB
https://i.natgeofe.com/n/be2c9510-636d-40f7-810a-b5fbdc858c90/STOCKPKG_MM10567_DSC09339_4x3.jpg?wp=1&w=718&h=539Image20066 KiB
https://assets-cdn.nationalgeographic.com/natgeo/a4e81e6e1f75-release-08-04-2026.12/client/natgeo/css/fusion-f1d9e45f.cssStylesheet20060 KiB
https://connect.facebook.net/signals/config/1549412225443134?v=2.9.368&r=stable&domain=www.nationalgeographic.com&hme=78c3d709c6e52779dc9d6e8b8770857bb5dfd27159797805bacb5f93b9e7568a&ex_m=108%2C210%2C160%2C22%2C73%2C74%2C151%2C69%2C68%2C11%2C169%2C93%2C16%2C143%2C131%2C39%2C76%2C81%2C139%2C165%2C171%2C26%2C27%2C28%2C30%2C48%2C152%2C78%2C116%2C18%2C20%2C44%2C40%2C42%2C41%2C86%2C95%2C99%2C114%2C150%2C153%2C46%2C115%2C24%2C21%2C123%2C70%2C36%2C155%2C154%2C156%2C147%2C145%2C25%2C35%2C59%2C113%2C167%2C71%2C17%2C158%2C118%2C84%2C67%2C19%2C88%2C89%2C120%2C87%2C141%2C140%2C144%2C100%2C166%2C34%2C49%2C117%2C47%2C8%2C4%2C5%2C7%2C6%2C3%2C94%2C105%2C172%2C177%2C224%2C75%2C237%2C236%2C235%2C23%2C33%2C55%2C107%2C61%2C10%2C64%2C101%2C102%2C103%2C109%2C134%2C31%2C29%2C136%2C137%2C138%2C133%2C132%2C161%2C77%2C164%2C162%2C163%2C50%2C60%2C127%2C15%2C168%2C45%2C281%2C282%2C280%2C295%2C313%2C217%2C206%2C62%2C207%2C205%2C316%2C307%2C52%2C218%2C111%2C135%2C83%2C125%2C54%2C124%2C130%2C129%2C58%2C65%2C63%2C157%2C79%2C80%2C119%2C37%2C32%2C53%2C56%2C104%2C170%2C1%2C128%2C14%2C126%2C12%2C2%2C57%2C96%2C66%2C122%2C92%2C91%2C173%2C174%2C97%2C98%2C9%2C106%2C51%2C148%2C90%2C82%2C72%2C121%2C110%2C43%2C149%2C0%2C85%2C142%2C146%2C159%2C38%2C112%2C13%2C175Script20057 KiB
https://www.datadoghq-browser-agent.com/us1/v5/datadog-rum.jsScript20055 KiB
https://dcf.espn.com/TWDC-DTCI/prod/code/fbf6a0129ee8414f3cde54e75789b832.js?conditionId0=4952847Script20055 KiB
https://cdn.disneyaccount.com/v5/sdk.jsScript20054 KiB
https://dcf.espn.com/TWDC-DTCI/prod/code/69baf3c8016d54855b4bb148891395a0.js?conditionId0=4898178Script20053 KiB
https://micro.rubiconproject.com/prebid/dynamic/18138.jsScript20046 KiB

Long tasks (>50 ms)

StartDuration
10588 ms1297 ms
8795 ms649 ms
5121 ms626 ms
2522 ms431 ms
1787 ms395 ms
5785 ms360 ms
7990 ms354 ms
9743 ms244 ms
12042 ms206 ms
8638 ms156 ms
Analyzing…
running mobile + desktop · ~30s