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Agent Readiness

Starbucks

starbucks.com · Food, Auto & Lifestyle Brands

65
Readiness /100
15
Checks passed
1
Checks failed
60
Checks run

Discoverability

Can agents find your site and its capabilities?

failWebMCP / agent-protocol tools discoveredAgent manifests

The page registers no tools via the WebMCP browser API (navigator.modelContext).

Fix: Expose your actions to AI agents with the WebMCP browser API: register tools via navigator.modelContext.registerTool. Optionally also publish a /.well-known/webmcp.json tool catalog as a discovery signpost.

passKey pages discoveredKey pages crawl

Crawled 12 of 12 discovered pages beyond the homepage.

infoWebsite platformplatform

Could not identify a known website platform (custom stack or unrecognised).

Understanding

Can agents understand your content?

warnMarkdown content negotiationOpen agent protocols

Homepage ignored Accept: text/markdown and returned HTML.

Fix: Serve a markdown version of high-value pages when the client asks for text/markdown. AI summarisers, chatbots and IDE agents prefer markdown — fewer tokens, no DOM noise.

warnImages have explicit dimensionsStructured data & HTML

Only 0/5 images have width+height — large CLS risk.

Fix: Set width and height on every <img> so the browser reserves space before the image loads. A layout that shifts while loading makes an AI agent mis-click the element it targeted.

warnSingle H1 on homepageStructured data & HTML

Found 2 <h1> tags. Most AI summarisers expect exactly one.

Fix: Demote the secondary H1s to H2 — keep H1 reserved for the page title.

warnKey pages have <title> and <h1>Key pages crawl

10 of 12 pages are missing <title> and/or <h1>: /menu, /menu/drinks/protein-beverages, /menu/drinks/hot-coffee, /menu/drinks/cold-coffee, /menu/drinks/hot-tea, /menu/drinks/cold-tea, /menu/drinks/refreshers, /menu/drinks/frappuccino-blended-beverage, /menu/drinks/hot-chocolate-lemonade-more, /menu/drinks/bottled-beverages.

Fix: Make sure every page sets a unique <title> and exactly one <h1>. The title is how an AI agent confirms it landed on the right page after navigating.

warnKey pages are server-renderedKey pages crawl

10 of 12 pages return <80 words of visible text — agents without JavaScript see an empty page: /menu (4w), /menu/drinks/protein-beverages (4w), /menu/drinks/hot-coffee (4w), /menu/drinks/cold-coffee (4w), /menu/drinks/hot-tea (4w), /menu/drinks/cold-tea (4w), /menu/drinks/refreshers (4w), /menu/drinks/frappuccino-blended-beverage (4w), /menu/drinks/hot-chocolate-lemonade-more (4w), /menu/drinks/bottled-beverages (4w).

Fix: Pre-render or server-render these pages so AI crawlers (which usually don't execute JS) can read them. Frameworks: Next.js Server Components, Nuxt SSR, Astro, or build-time prerendering.

passHomepage content is server-renderedCrawlability (Google)

Homepage server response contains 405 words of visible text — content is reachable without executing JavaScript.

passCookie banner does not block crawlersStructured data & HTML

Detected 1 cookie-banner element but none look agent-hostile (small, dismissible, or offer a reject option).

passDOM size is reasonableStructured data & HTML

Homepage contains ~452 elements.

passHeading hierarchy is intactStructured data & HTML

16 headings, no level skips.

pass<html lang> attributeStructured data & HTML

Language declared as "en-US".

passImages have alt textStructured data & HTML

5 of 5 <img> tags have alt attributes.

passInternal links on homepageStructured data & HTML

21 internal links found.

passSemantic landmark elementsStructured data & HTML

All four landmark elements present (main, header, footer, nav).

Operability

Can agents actually operate the page?

failWebMCP tools registered with the browserWebMCP tools

The page registers no tools via the navigator.modelContext browser API, so an AI agent has no structured way to operate it.

Fix: Expose your site’s actions to AI agents with the WebMCP browser API: call navigator.modelContext.registerTool({ name, description, inputSchema, execute }) from your page so an agent can invoke them. Implement it directly, or with a library like the @mcp-b polyfill (https://mcp-b.ai). Spec: https://github.com/webmachinelearning/webmcp.

passAccessibility tree is agent-navigableAccessibility

All 10 agent-critical accessibility audits passed — an agent can perceive and operate the page through its accessibility tree.

pass`[aria-*]` attributes match their rolesAccessibility

`[aria-*]` attributes match their roles passed.

pass`[aria-hidden="true"]` is not present on the document `<body>`Accessibility

`[aria-hidden="true"]` is not present on the document `<body>` passed.

pass`[aria-hidden="true"]` elements do not contain focusable descendentsAccessibility

`[aria-hidden="true"]` elements do not contain focusable descendents passed.

pass`[role]`s have all required `[aria-*]` attributesAccessibility

`[role]`s have all required `[aria-*]` attributes passed.

pass`[role]` values are validAccessibility

`[role]` values are valid passed.

pass`[aria-*]` attributes are valid and not misspelledAccessibility

`[aria-*]` attributes are valid and not misspelled passed.

pass`[aria-*]` attributes have valid valuesAccessibility

`[aria-*]` attributes have valid values passed.

passButtons have an accessible nameAccessibility

Buttons have an accessible name passed.

passDocument has a `<title>` elementAccessibility

Document has a `<title>` element passed.

passLinks have a discernible nameAccessibility

Links have a discernible name passed.

passOverall accessibility scoreAccessibility

Lighthouse accessibility score: 100/100. Agents read the page through its accessibility tree, so this is a proxy for how navigable your site is to an AI agent.

passCumulative Layout ShiftPerformance

0.020 (field data from CrUX) — good.

passTime to First BytePerformance

517ms (field data from CrUX) — good.

infoTool catalog signpost publishedWebMCP tools

No tool catalog was found at /.well-known/webmcp.json (or /.well-known/webmcp). The catalog is a community convention, not part of the WebMCP standard, so this does not affect WebMCP presence.

Fix: Consider also publishing a tool catalog at /.well-known/webmcp.json: a JSON document with a "spec" of "webmcp/0.1" and a "tools" array, where each tool declares a name and a clear description. It is a community convention (optional, not part of the WebMCP standard) that lets crawlers and agents discover your tools without executing JavaScript.

Trust & Security

Can agents safely transact?

warnOAuth authorization server metadataOpen agent protocols

/.well-known/oauth-authorization-server returned the site's HTML app shell — treating as not published.

Fix: Publish /.well-known/oauth-authorization-server so AI agents discovering your OAuth setup can negotiate flows automatically. Required if your site offers an authenticated API.

warnOAuth protected-resource metadataOpen agent protocols

/.well-known/oauth-protected-resource returned the site's HTML app shell — treating as not published.

Fix: Publish /.well-known/oauth-protected-resource so AI agents discovering your OAuth setup can negotiate flows automatically. Required if your site offers an authenticated API.

warnWeb Bot Auth signature headerOpen agent protocols

No Web Bot Auth signature headers — sites can't verify agent identity.

Fix: Web Bot Auth (IETF HTTP Message Signatures over Signature / Signature-Input) lets you cryptographically verify which agent is hitting you. Several CDNs offer turn-key support; otherwise skip until vendor support matures.

warnReferrer-Policy headerSecurity & trust

No Referrer-Policy header on the homepage.

Fix: Add `Referrer-Policy: strict-origin-when-cross-origin` so outbound links don't leak full URLs (including query strings) to third parties.

warnNo tech-stack disclosure in headersSecurity & trust

x-powered-by: cwa00

Fix: Configure your web server / framework to suppress version strings. They give attackers a free shortlist of known CVEs to try.

passContent-Security-Policy headerSecurity & trust

CSP header present.

passHTTP Strict-Transport-Security headerSecurity & trust

max-age=31536000, includeSubDomains=true, preload=true.

passSite is served over HTTPSSecurity & trust

Homepage scheme is https:.

passhttp:// redirects to https://Security & trust

http://starbucks.com → https://www.starbucks.com/ (2 hops).

passHomepage shows no error outputSecurity & trust

No stack-trace markers in the first 5KB.

passNo mixed-content referencesSecurity & trust

Homepage HTML references no http:// resources.

passTLS certificate is not near expirySecurity & trust

Valid for 173 more days (Jan 10 23:59:59 2027 GMT, issuer: DigiCert Global G3 TLS ECC SHA384 2020 CA1).

passMIME-sniff protectionSecurity & trust

X-Content-Type-Options: nosniff.

passClick-jacking protectionSecurity & trust

CSP frame-ancestors directive present.