www.mailchimp.com

Report from 9/21/2026, 1:25:26 PM https://www.mailchimp.com
Latest run · lab, cold cache
70
9/21/2026
28-day score · p75 · the standard
70
18 runs
CRR80%latest
SSD78%latest
TC1916 toklatest
TTFUT65 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/mailchimp.com.svg)](https://agentvitals.dev/results?url=https%3A%2F%2Fwww.mailchimp.com)
<a href="https://agentvitals.dev/results?url=https%3A%2F%2Fwww.mailchimp.com"><img src="https://agentvitals.dev/badge/mailchimp.com.svg" alt="Core Agent Vitals" height="20"></a>
What AI tells your customers about youAgent confidence: LOW
🟡Business nameMailchimp · guessed from page text (no structured data)
Categorynot found
🟡Price$ 28 · 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
🟡DescriptionUtilize real-time user behavior data and artificial intelligence to convert more customers. Easy to use, get started for free! · guessed from page text (no structured data)

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.

70
Overall score
weighted CAV (0–100)
WARN
0–4950–8990–100

Metrics

80%
CRR Content Recovery Needs work
0.78
SSD Semantic Signal Density Good
1,916 tok
TC Token Cost Good
146 ms
TTFUT Time to First Useful Token N/A

Token Cost breakdown

Where the page's tokens go (≈21,315 across regions). 54% is non-content — chrome and boilerplate an agent pays for. Add landmark roles (main/nav/header/footer) so agents can skip it.

Content
46.5% · 9,907
Chrome (nav / header / footer)
32% · 6,828
Boilerplate (cookie / ad)
3.8% · 812
Other
17.7% · 3,768

Final screenshot

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

Diagnostics

medium CRR Content is hidden behind JavaScript

pre-JS raw HTML

Evidence20% of content requires JS · 80% of rendered content recovered (rest is placeholder/wrong)
ImpactA non-rendering agent never sees the JS-injected content.
Effort1–4 h

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.

medium TC 53.5% of tokens are non-content (boilerplate/chrome)

agent representation — token decomposition

EvidenceToken decomposition: content 46.5%, chrome 32%, boilerplate 3.8%, other 17.7%. Only 46.5% 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 88/100 · 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 Found at /llms.txt Learn →
robots.txt (AI bots) Major AI bots allowed Learn →
sitemap.xml Found at /sitemap.xml Learn →
JSON-LD structured data Types: Service Learn →
~ agents.json Absent (emerging standard) Learn →
~ WebMCP endpoint Absent (emerging standard) Learn →
~ OpenAPI / API docs No OpenAPI/Swagger found Learn →

Issues (5)

~ 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/

~ Machine-readable prices medium impact No prices found

Business impact When a user asks an agent 'how much does X cost', it needs readable pricing. Hidden, JS-only or 'request a quote' pricing means the agent can't answer — and recommends someone who can.

What we measured We scan the HTML for price patterns and Schema.org Offer/PriceSpecification markup.

How to fix Expose prices (or a starting-from range) in HTML and add Schema.org Offer.

<script type="application/ld+json">{"@type":"Offer","price":"29.90","priceCurrency":"EUR"}</script>

Spec: https://schema.org/Offer

~ 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✓ llms.txt present + valid✓ 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.

59Transport posture (0–100, unscored)
2pass
1warn
2fail
Per-header findings (6)
HeaderEvidence
✅ HTTPSserved over HTTPS
✅ HSTSmax-age=15552000
❌ 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

desktopEmbedded.js — 267 KiB transferred, 69.3% unused (third-party)

EvidenceCDP JS coverage: 185 KiB of this bundle is never executed on load.
Impact~-185 KiB transfer; lower Token Cost + faster agent parse.
Effort30–90 min
FixDynamic-import() the below-the-fold parts of desktopEmbedded.js, or drop unused dependencies. It is third-party — lazy-load or remove it.
mediumCut third-party weight

lpsnmedia.net — 325 KiB, 12 requests

EvidenceThird-party is 47.4% of total transfer (348 requests); lpsnmedia.net is the largest.
ImpactFewer bytes + main-thread stalls before your content settles for an agent.
Effort1–3 h
FixLazy-load, self-host, or remove lpsnmedia.net; defer non-critical third-party scripts.
mediumBreak up long main-thread tasks

longest task 114 ms (6 total)

EvidenceMain thread blocked 114 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 total transfer weight

4.7 MB total

Evidence4.7 MB transferred.
ImpactCheaper, faster fetch on slow links.
Effort1–3 h
FixEnable Brotli, serve WebP/AVIF images, defer non-critical resources.

Third-party impact

348 third-party requests · 2275 KiB (47.4% of transfer) · 383 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
lpsnmedia.net12325 KiB
facebook.net2247 KiB115 ms
cookielaw.org10213 KiB131 ms
googletagmanager.com2191 KiB
tiktok.com7161 KiB
optimizely.com2145 KiB71 ms
liveperson.net10143 KiB
qualtrics.com12130 KiB
fullstory.com10104 KiB60 ms
google.com16101 KiB
go-mpulse.net460 KiB
herbgreencolumn.com1155 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://lpcdn.lpsnmedia.net/le_unified_window/10.47.2-release_2761052727/desktopEmbedded.js?version=10.47.2-release_2761052727 3P267 KiB69.3%185 KiB
https://www.googletagmanager.com/gtag/js?id=G-N5HD1RTH6E 3P191 KiB66.5%127 KiB
https://mailchimp.com/metrics/VIX32aeyujhBM07C__Wngd7CIhoGAnYe8SId-nyfWzRXs6nK8mYA200 KiB46.7%94 KiB
https://mailchimp.com/metrics/VIWvxKewkgtRTVe7-4TUhbWhTE87GXZAqzVWoDyXUDlVtGYA171 KiB48%82 KiB
https://mailchimp.com/metrics/?id=235 KiB34.2%80 KiB
https://mailchimp.com/metrics/VIWvxKewlAgxWVbUmP6k5rSwDVguGSED-nhcrGYA140 KiB57.1%80 KiB
https://mailchimp.com/metrics/VIWvxKewlx9RTVu1_orUgar1EhEgAnISoXwP-D7LATFmAA153 KiB52.1%80 KiB
https://mailchimp.com/metrics/VIWvxKewlAgxWVa1je7W4r6wDVguGSED-nhcrGYA140 KiB56.7%79 KiB
https://cdn.cookielaw.org/scripttemplates/202601.2.0/otBannerSdk.js 3P128 KiB60.9%78 KiB
https://accounts.google.com/gsi/client 3P99 KiB78%77 KiB
https://analytics.tiktok.com/i18n/pixel/static/main.MWU2MzIzODM0MQ.js 3P115 KiB58.9%68 KiB
https://lptag.liveperson.net/lptag/api/account/19175958/configuration/applications/taglets/.jsonp?v=2.0&df=undefined&b=undefined 3P126 KiB47%59 KiB
https://cdn.optimizely.com/js/8896740779.js 3P145 KiB39.4%57 KiB
https://connect.facebook.net/signals/config/1592378257726461?v=2.9.403&r=stable&domain=mailchimp.com&hme=ecef7557496abce7ebfd30d9fec7f02b78383ffbf3f454783aea671f0dea1dfc&ex_m=117%2C234%2C168%2C27%2C81%2C82%2C160%2C77%2C76%2C11%2C178%2C101%2C20%2C152%2C140%2C46%2C84%2C89%2C148%2C173%2C180%2C8%2C4%2C5%2C7%2C6%2C3%2C102%2C114%2C32%2C17%2C31%2C18%2C33%2C34%2C35%2C37%2C55%2C161%2C86%2C125%2C22%2C24%2C51%2C47%2C49%2C48%2C94%2C103%2C107%2C123%2C159%2C162%2C53%2C124%2C29%2C26%2C132%2C78%2C43%2C164%2C163%2C165%2C156%2C154%2C30%2C42%2C66%2C122%2C175%2C79%2C21%2C127%2C92%2C75%2C23%2C96%2C97%2C129%2C95%2C150%2C149%2C153%2C108%2C174%2C177%2C41%2C56%2C126%2C54%2C182%2C109%2C181%2C201%2C248%2C83%2C262%2C261%2C260%2C14%2C25%2C28%2C40%2C62%2C116%2C68%2C10%2C72%2C110%2C111%2C112%2C118%2C143%2C38%2C36%2C145%2C146%2C147%2C142%2C141%2C169%2C85%2C172%2C170%2C171%2C57%2C67%2C136%2C19%2C176%2C52%2C311%2C312%2C313%2C310%2C326%2C351%2C241%2C230%2C69%2C231%2C229%2C354%2C345%2C59%2C242%2C120%2C144%2C91%2C134%2C61%2C133%2C139%2C138%2C65%2C73%2C71%2C166%2C87%2C88%2C128%2C44%2C39%2C60%2C63%2C113%2C179%2C1%2C137%2C16%2C135%2C12%2C2%2C64%2C104%2C15%2C74%2C70%2C131%2C100%2C99%2C184%2C185%2C105%2C106%2C9%2C115%2C183%2C58%2C157%2C98%2C90%2C80%2C130%2C119%2C50%2C158%2C0%2C93%2C151%2C155%2C167%2C45%2C121%2C13%2C186 3P139 KiB33.8%47 KiB
https://connect.facebook.net/en_US/fbevents.js 3P108 KiB40.7%44 KiB

Network

499Requests
4796 KiBTransferred
143Scripts
47.4%3rd-party
6Long tasks
Script (143)
3874 KiB
Image (76)
265 KiB
Font (6)
217 KiB
Fetch (175)
188 KiB
Stylesheet (14)
112 KiB
Document (18)
80 KiB
XHR (43)
51 KiB
Ping (12)
7 KiB
Other (12)
2 KiB
Heaviest requests (30)
URLTypeStatusTransfer
https://lpcdn.lpsnmedia.net/le_unified_window/10.47.2-release_2761052727/desktopEmbedded.js?version=10.47.2-release_2761052727Script200267 KiB
https://mailchimp.com/metrics/?id=Script200235 KiB
https://mailchimp.com/metrics/VIX32aeyujhBM07C__Wngd7CIhoGAnYe8SId-nyfWzRXs6nK8mYAScript200200 KiB
https://mailchimp.com/FVZ8sTYBJ/7Kh3yQo0/tQZmVziF/sQ/9bEmQXGc5rGbm0SOYi/OyhvFgoadAI/A2YFY/QI3bDkScript200198 KiB
https://mailchimp.com/FVZ8sTYBJ/7Kh3yQo0/tQZmVziF/sQ/9bEmQXGc5rGbm0SOYi/OyhvFgoadAI/A2YFY/QI3bDkScript200198 KiB
https://www.googletagmanager.com/gtag/js?id=G-N5HD1RTH6EScript200191 KiB
https://mailchimp.com/metrics/VIWvxKewkgtRTVe7-4TUhbWhTE87GXZAqzVWoDyXUDlVtGYAScript200171 KiB
https://mailchimp.com/metrics/VIWvxKewlx9RTVu1_orUgar1EhEgAnISoXwP-D7LATFmAAScript200153 KiB
https://cdn.optimizely.com/js/8896740779.jsScript200145 KiB
https://mailchimp.com/metrics/VIWvxKewlAgxWVa1je7W4r6wDVguGSED-nhcrGYAScript200140 KiB
https://mailchimp.com/metrics/VIWvxKewlAgxWVbUmP6k5rSwDVguGSED-nhcrGYAScript200140 KiB
https://connect.facebook.net/signals/config/1592378257726461?v=2.9.403&r=stable&domain=mailchimp.com&hme=ecef7557496abce7ebfd30d9fec7f02b78383ffbf3f454783aea671f0dea1dfc&ex_m=117%2C234%2C168%2C27%2C81%2C82%2C160%2C77%2C76%2C11%2C178%2C101%2C20%2C152%2C140%2C46%2C84%2C89%2C148%2C173%2C180%2C8%2C4%2C5%2C7%2C6%2C3%2C102%2C114%2C32%2C17%2C31%2C18%2C33%2C34%2C35%2C37%2C55%2C161%2C86%2C125%2C22%2C24%2C51%2C47%2C49%2C48%2C94%2C103%2C107%2C123%2C159%2C162%2C53%2C124%2C29%2C26%2C132%2C78%2C43%2C164%2C163%2C165%2C156%2C154%2C30%2C42%2C66%2C122%2C175%2C79%2C21%2C127%2C92%2C75%2C23%2C96%2C97%2C129%2C95%2C150%2C149%2C153%2C108%2C174%2C177%2C41%2C56%2C126%2C54%2C182%2C109%2C181%2C201%2C248%2C83%2C262%2C261%2C260%2C14%2C25%2C28%2C40%2C62%2C116%2C68%2C10%2C72%2C110%2C111%2C112%2C118%2C143%2C38%2C36%2C145%2C146%2C147%2C142%2C141%2C169%2C85%2C172%2C170%2C171%2C57%2C67%2C136%2C19%2C176%2C52%2C311%2C312%2C313%2C310%2C326%2C351%2C241%2C230%2C69%2C231%2C229%2C354%2C345%2C59%2C242%2C120%2C144%2C91%2C134%2C61%2C133%2C139%2C138%2C65%2C73%2C71%2C166%2C87%2C88%2C128%2C44%2C39%2C60%2C63%2C113%2C179%2C1%2C137%2C16%2C135%2C12%2C2%2C64%2C104%2C15%2C74%2C70%2C131%2C100%2C99%2C184%2C185%2C105%2C106%2C9%2C115%2C183%2C58%2C157%2C98%2C90%2C80%2C130%2C119%2C50%2C158%2C0%2C93%2C151%2C155%2C167%2C45%2C121%2C13%2C186Script200139 KiB
https://cdn.cookielaw.org/scripttemplates/202601.2.0/otBannerSdk.jsScript200128 KiB
https://lptag.liveperson.net/lptag/api/account/19175958/configuration/applications/taglets/.jsonp?v=2.0&df=undefined&b=undefinedScript200126 KiB
https://analytics.tiktok.com/i18n/pixel/static/main.MWU2MzIzODM0MQ.jsScript200115 KiB
https://connect.facebook.net/en_US/fbevents.jsScript200108 KiB
https://accounts.google.com/gsi/clientScript20099 KiB
https://edge.fullstory.com/s/fs.jsScript20080 KiB
https://mailchimp.com/Document20075 KiB
https://mailchimp.com/Fetch20075 KiB
https://mailchimp.com/ctf/images/yzco4xsimv0y/5ti0F3znmaQ33B30TxuD1t/0ad3dac3dc8ab7c0f6635c3a7489cd1a/hero_standard_1920x1080_temp_solution_1x.webp?w=1536&q=70Image20059 KiB
https://s2.go-mpulse.net/boomerang/QAT5G-9HZLF-7EDMX-YMVCJ-QZJDAScript20058 KiB
https://mailchimp.com/release/plums/cxp/css/critical.e9f411a1.1.cssStylesheet20058 KiB
https://mailchimp.com/release/plums/cxp/js/index.d1ef8d9b.1.jsScript20054 KiB
https://ob.herbgreencolumn.com/i/52a636366034da11f1359c540cba8584.jsScript20052 KiB
https://cdn.cookielaw.org/consent/41e15231-4a82-4457-b3aa-67f11aea3ee2/019010d0-3873-7c04-a112-45242af201e8/en.jsonFetch20045 KiB
https://mailchimp.com/cdn/product/fonts/mailchimp/graphik/Graphik-Semibold-Web.woff2Font20041 KiB
https://analytics.tiktok.com/i18n/pixel/static/identify_0504602d.jsScript20040 KiB
https://siteintercept.qualtrics.com/dxjsmodule/626.848665a0a9c3ddf336b8.chunk.js?Q_CLIENTVERSION=2.57.0&Q_CLIENTTYPE=web&Q_BRANDID=mailchimp.comScript20039 KiB
https://mailchimp.com/ctf/images/yzco4xsimv0y/7qpmYJTyow27p6lOzQUKjw/9ded17b6fa35d251cd69f291d753b0ab/connect-your-store-large.webpImage20039 KiB

Long tasks (>50 ms)

StartDuration
1386 ms114 ms
726 ms80 ms
1257 ms70 ms
8463 ms66 ms
834 ms50 ms
1534 ms50 ms
Analyzing…
running mobile + desktop · ~30s