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Agent Readiness

Messenger

messenger.com · Social Media & Community

51
Readiness /100
14
Checks passed
1
Checks failed
67
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 1 of 12 discovered pages beyond the homepage.

infoLighthouse Agentic Browsing runLighthouse Agentic

Lighthouse Agentic Browsing audits ran.

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 0/4 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.

warnSemantic landmark elementsStructured data & HTML

Missing landmark elements: main, nav.

warnSingle H1 on homepageStructured data & HTML

Found 4 <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

1 of 1 pages are missing <title> and/or <h1>: /help.

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

1 of 1 pages return <80 words of visible text — agents without JavaScript see an empty page: /help (3w).

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 125 words of visible text — content is reachable without executing JavaScript.

passDOM size is reasonableStructured data & HTML

Homepage contains ~386 elements.

passHeading hierarchy is intactStructured data & HTML

4 headings, no level skips.

pass<html lang> attributeStructured data & HTML

Language declared as "en".

passImages have alt textStructured data & HTML

4 of 4 <img> tags have alt attributes.

passInternal links on homepageStructured data & HTML

5 internal links found.

Operability

Can agents actually operate the page?

failLinks do not have a discernible nameAccessibility

Lighthouse flagged this audit — agents may be unable to perceive or operate the affected elements.

Fix: Give every link discernible text (avoid bare icons / "click here") so agents know where it goes.

failAccessibility tree is not well-formedLighthouse Agentic

A well-formed [accessibility tree](http://goo.gle/lighthouse-agentic-a11y) helps AI agents to navigate and interact with 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.

warnAccessibility tree is agent-navigableAccessibility

1 of 11 agent-critical accessibility audits failed (Links do not have a discernible name) — an agent may be unable to identify or operate the affected elements.

Fix: Fix the failing agent-accessibility audits listed below (accessible names on controls, valid ARIA roles/relationships, nothing interactive hidden from the tree).

warnForm errors are accessibleStructured data & HTML

0/1 data-collecting forms expose errors via ARIA attributes.

Fix: Wire inputs to their error containers with `aria-describedby` and toggle `aria-invalid` on validation failure. Agents that can't see styled error text rely on these attributes.

warnForm fields publish validation hintsStructured data & HTML

No HTML5 validation hints (pattern / minlength / maxlength / min / max) on any data-collecting form input.

Fix: Publish input constraints via HTML attributes so agents and browsers can validate client-side.

warnTime to First BytePerformance

859ms (field data from CrUX) — needs improvement.

Fix: Every request an AI agent makes pays this server latency, and agents make many requests per task. Reduce TTFB with edge caching, a CDN, and shipping less server-side work per request.

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

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

pass`button`, `link`, and `menuitem` elements have accessible namesAccessibility

`button`, `link`, and `menuitem` elements have accessible names 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.

passOverall accessibility scoreAccessibility

Lighthouse accessibility score: 93/100. Agents read the page through its accessibility tree, so this is a proxy for how navigable your site is to an AI agent.

passForms use autocomplete attributesStructured data & HTML

All 1 data-collecting forms set autocomplete on at least one field.

passForm fields have labelsStructured data & HTML

3 of 3 visible interactive form fields have labels.

passForms mark required fieldsStructured data & HTML

1/1 data-collecting forms mark required fields.

passCumulative Layout ShiftLighthouse Agentic

0.034

passCumulative Layout ShiftPerformance

0.040 (field data from CrUX) — good.

infoWebMCP tools registeredLighthouse Agentic

Lists the [WebMCP tools](http://goo.gle/webmcp-docs) registered at the time of analysis.

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 404.

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 404.

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.

warnHTTP Strict-Transport-Security headerSecurity & trust

HSTS max-age=15552000 is below six months.

Fix: Raise max-age to at least 15768000 (six months). The HSTS preload list requires 31536000 (one year).

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.

warnTLS certificate is not near expirySecurity & trust

Certificate expires in 7 days (Jul 28 23:59:59 2026 GMT).

Fix: Renew within the week — automated renewal (Let's Encrypt + cron / certbot) avoids manual outages.

passContent-Security-Policy headerSecurity & trust

CSP header present.

passSite is served over HTTPSSecurity & trust

Homepage scheme is https:.

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

http://messenger.com → https://www.messenger.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.

passNo tech-stack disclosure in headersSecurity & trust

Server / X-Powered-By headers don't leak product version.

passMIME-sniff protectionSecurity & trust

X-Content-Type-Options: nosniff.

passClick-jacking protectionSecurity & trust

CSP frame-ancestors directive present.