Informe del sitio: 1 página medida. Valoración general: Aceptable.
Puntuación del sitio · europa.eu
Combina el origen y 1 página medida. El reporte de abajo detalla solamente la página de origen.
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Este informe es público. Tu equipo puede abrirlo sin una cuenta.
¿Hay algo que un agente pueda leer?
Homepage does not serve Markdown via content negotiation
Serve a Markdown representation of your pages when agents request "Accept: text/markdown". Agents like Claude Code and Cursor ask for it, and Markdown cuts token usage by roughly 80% against HTML. Cloudflare ("Markdown for Agents") and Vercel can enable this without code changes.
No <link rel="alternate" type="text/markdown"> fallback found on the homepage
If you cannot enable content negotiation, advertise a Markdown version with <link rel="alternate" type="text/markdown" href="/index.md"> so agents can discover it.
No JSON-LD structured data found
Add a <script type="application/ld+json"> block in your HTML <head> with schema.org structured data describing your site, organization, or person.
Sparse server-rendered content (66 words, 392 chars)
Render at least the main page content server-side. Many AI crawlers (GPTBot, ClaudeBot, CCBot) do not execute JavaScript and will see only the static HTML.
Low text-to-markup ratio (2.2%)
A very low text-to-markup ratio is a typical SPA-shell symptom. Inline more content directly into the HTML response.
No semantic HTML landmarks found
Replace generic <div> structures with semantic tags: <main>, <article>, <header>, <nav>, <footer>. Agents use these to identify the primary content region.
No <h1> heading found
Add a single <h1> describing the page. Agents and search engines treat the H1 as the primary topic indicator.
1/1 <img> tags have alt attributes
Generator: Drupal 11 (https://www.drupal.org)
28/28 interactive elements have an accessible name
Method note: this reads markup, not a rendered accessibility tree
<title> length 35 chars: "Language selection | European Union"
Meta description length 152 chars
Canonical URL: https://european-union.europa.eu/index_en
<html lang="en">
UTF-8 charset declared
Viewport meta present: "width=device-width, initial-scale=1.0"
¿Un agente puede siquiera llegar al sitio?
Response compressed with gzip
No ETag or Last-Modified header — conditional requests unsupported
Send an ETag or Last-Modified header so crawlers can revalidate with If-None-Match / If-Modified-Since and receive a cheap 304 Not Modified instead of the full body.
Homepage size is reasonable (17.8 KB decompressed)
Roughly 98 tokens of content in 4,533 tokens of response (98% markup)
An agent pays to receive the markup and then discards it. Serving Markdown on Accept negotiation is the direct fix.
Homepage responded in 104ms
A missing page redirects (301) instead of returning 404
A redirect on a nonexistent path hides the error. Return 404 or 410 so a client can tell the difference.
Homepage answers after 1 redirect
HEAD requests are supported
Content-Type: text/html with charset
Site is served over HTTPS
HTTP requests redirect to HTTPS
HSTS max-age=31536000
HSTS includes subdomains
HSTS preload-eligible
All 10 core AI crawler user-agents receive the same page as a regular client
Homepage is indexable
No directive restricts how AI assistants may use this page
¿Un agente encuentra lo que publicas?
/llms.txt not found
Create a /llms.txt file at your site root following the llmstxt.org specification. It should be a Markdown file starting with "# Your Site Name" and include a description, sections, and links.
No sitemap found
Publish an XML sitemap at /sitemap.xml and reference it from robots.txt with: Sitemap: https://your-site.com/sitemap.xml
No AI meta tags (ai:*) found
Add AI meta tags to your HTML <head>: <meta name="ai:summary" content="Brief description">, <meta name="ai:content_type" content="website">, <meta name="ai:author" content="Your Name">.
No rel="alternate" link to llms.txt in HTML
Add to your <head>: <link rel="alternate" type="text/plain" href="/llms.txt" title="LLM-optimized content">
No rel="alternate" link to the Agent Card in HTML
Add to your <head>: <link rel="alternate" type="application/json" href="/.well-known/agent-card.json" title="Agent Card">
No rel="me" identity links found
Add rel="me" links to verify your identity across platforms: <link rel="me" href="https://github.com/yourname">, <link rel="me" href="https://twitter.com/yourname">.
OpenGraph required tags present (og:title, og:description, og:url, og:type)
Twitter Card required tags present (twitter:card, twitter:title, twitter:description)
/robots.txt exists
No core AI crawlers explicitly configured
Add User-agent entries for core AI crawlers in your robots.txt. For each crawler, add: User-agent: <name> followed by Allow: / on the next line.
1 AI crawler(s) have partial path restrictions
These crawlers have Disallow rules on specific paths. For full AI access, use only "Allow: /" and let the wildcard User-agent: * handle path restrictions.
No Sitemap directive found
Add a Sitemap directive to your robots.txt: Sitemap: https://your-site.com/sitemap.xml
No Content-Signal directive found (optional)
Declare how crawlers may use your content after access with the Content Signals Policy, e.g.: Content-Signal: search=yes, ai-train=no. Known signals: search, ai-input, ai-train, plus the optional use=immediate|reference|full. Generate yours at contentsignals.org.
1/57 known AI crawlers have explicit rules
Add explicit User-agent entries for more AI crawlers to maximize discoverability.
Only 3/7 security headers present
Add security headers like Strict-Transport-Security, X-Content-Type-Options, X-Frame-Options, and Referrer-Policy to your server response.
No Link header for AI discovery (llms.txt, Agent Card)
Add a Link response header pointing to your AI discovery files: Link: </llms.txt>; rel="alternate"; type="text/plain", </.well-known/agent-card.json>; rel="alternate"; type="application/json"
No machine-readable discovery relations beyond llms.txt and the Agent Card
Advertise what you publish with Link relations so agents stop guessing paths. Add the ones that apply, for example: Link: </llms.txt>; rel="describedby", </.well-known/api-catalog>; rel="api-catalog". Informational in 3.x: this does not affect your score.
¿Qué puede invocar un agente?
No agent resource catalog found
A catalog is one document listing everything an agent can call here — agent cards, MCP servers, APIs, skills — so a client stops probing four conventions to find out. Worth publishing once you have more than one of those. Informational: both ai-catalog.json and ard.json are still drafts, so this never affects your score.
No agent-facing surface — an Agent Card does not apply to this site
No API surface — API discovery does not apply to this site
No MCP server — MCP discovery does not apply to this site
No developer-facing surface — skills do not apply to this site
No forms and no WebMCP code — nothing here for an agent to invoke as a tool
No commerce surface — agentic-commerce discovery does not apply to this site
Nothing on this site requires authorization — auth discovery does not apply
¿Qué derechos de uso están declarados?
/.well-known/security.txt not found
Create a /.well-known/security.txt file per RFC 9116. At minimum, include Contact: and Expires: fields. See https://securitytxt.org/ for a generator.
No RSL license discovery found
Declare machine-readable licensing terms for your content with Really Simple Licensing. Add to robots.txt: License: https://your-site.com/license.xml — then publish the RSL document. See https://rslstandard.org.
No machine-readable usage policy declared
State your terms where they can be read without a lawyer. The lowest-effort option is a Content-Signal line in robots.txt: Content-Signal: search=yes, ai-input=yes, ai-train=no. Absence is neutral, not permission — but it also gives you nothing to point at.
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