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Agent Readiness

Sentry

sentry.io · Developer, Cloud & Tech

81
Readiness /100
27
Checks passed
1
Checks failed
64
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.

passAgent Skills indexAgent manifests

Found a parseable Agent Skills index at https://sentry.io/.well-known/agent-skills/index.json.

pass/.well-known/api-catalog (RFC 9727)Agent manifests

Found a parseable Linkset at https://sentry.io/.well-known/api-catalog.

pass/llms.txt guide for AI agentsAgent manifests

Found https://sentry.io/llms.txt.

pass/llms.txt lists key pages as markdown linksAgent manifests

Found at least one "[name](url)" markdown link.

pass/llms.txt has a summary blockquoteAgent manifests

Found a "> summary" blockquote.

pass/llms.txt opens with an H1 titleAgent manifests

First line is a top-level "# Title" heading.

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?

warnDOM size is reasonableStructured data & HTML

Homepage contains ~3364 elements — well above the 1500-element budget.

Fix: Trim the homepage DOM: an AI agent has to read all of it before acting, and this page is several times over budget. Long product carousels, hidden modal markup and large tracker scripts are common culprits.

warnImages have explicit dimensionsStructured data & HTML

Only 29/44 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.

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

8 of 12 pages are missing <title> and/or <h1>: /contact-us, /plans, /about-us, /services, /products, /blog, /news, /faq.

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

8 of 12 pages return <80 words of visible text — agents without JavaScript see an empty page: /contact-us (75w), /plans (45w), /about-us (75w), /services (45w), /products (45w), /blog (75w), /news (45w), /faq (45w).

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.

passMarkdown content negotiationOpen agent protocols

Homepage returns text/markdown when requested.

passHomepage content is server-renderedCrawlability (Google)

Homepage server response contains 2896 words of visible text — content is reachable without executing JavaScript.

passHeading hierarchy is intactStructured data & HTML

37 headings, no level skips.

pass<html lang> attributeStructured data & HTML

Language declared as "en".

passImages have alt textStructured data & HTML

44 of 44 <img> tags have alt attributes.

passInternal links on homepageStructured data & HTML

161 internal links found.

passSemantic landmark elementsStructured data & HTML

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

passSingle H1 on homepageStructured data & HTML

Exactly one <h1> on the homepage.

Operability

Can agents actually operate the page?

fail`button`, `link`, and `menuitem` elements do not have accessible names.Accessibility

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

Fix: Give ARIA buttons/links/menuitems an accessible name.

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 (`button`, `link`, and `menuitem` elements do not have accessible names.) — 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 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.

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: 97/100. 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 errors are accessibleStructured data & HTML

All 1 data-collecting forms reference errors via aria-describedby / aria-invalid.

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 ShiftPerformance

0.000 (field data from CrUX) — good.

passTime to First BytePerformance

691ms (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?

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.

warnMIME-sniff protectionSecurity & trust

No `X-Content-Type-Options: nosniff` header.

Fix: Add `X-Content-Type-Options: nosniff` to prevent browsers (and some agents) from re-interpreting your responses as a different content type.

passOAuth authorization server metadataOpen agent protocols

/.well-known/oauth-authorization-server returns parseable JSON.

passOAuth protected-resource metadataOpen agent protocols

/.well-known/oauth-protected-resource returns parseable JSON.

passCDN detectedSecurity & trust

x-vercel-id: sfo1::zvwbj-1784645108565-484d2353fee7 (Vercel)

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://sentry.io → https://sentry.io/welcome/ (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 34 more days (Aug 24 23:59:59 2026 GMT, issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1).

passNo tech-stack disclosure in headersSecurity & trust

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

passClick-jacking protectionSecurity & trust

CSP frame-ancestors directive present.