Measured on the home page. Overall grade: Poor.
/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.
/.well-known/agent.json not found
Create a /.well-known/agent.json file following the A2A (Agent-to-Agent) protocol. It should include name, description, url, and skills fields describing your site's capabilities.
/.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.
/.well-known/openapi.json not found
Create a /.well-known/openapi.json file with your API specification following the OpenAPI 3.x standard. See https://swagger.io/specification/ for the spec.
/.well-known/mcp.json not found
Create a /.well-known/mcp.json file describing your MCP server configuration. Include name, description, tools, and version fields. See https://modelcontextprotocol.io for the spec.
No sitemap found
Publish an XML sitemap at /sitemap.xml and reference it from robots.txt with: Sitemap: https://your-site.com/sitemap.xml
0/5 emerging AI discovery files published
ai.txt not found
Publish /.well-known/ai.txt declaring opt-in/opt-out signals for AI training. See https://site.spawning.ai/spawning-ai-txt for the format.
genai.txt not found
Publish /.well-known/genai.txt declaring your generative-AI usage policy.
ai-plugin.json not found
Publish /ai-plugin.json (legacy ChatGPT plugin manifest). Schema: name_for_model, description_for_model, api.url. Still consumed by some agents.
agents.json not found
Publish /agents.json describing your site as a callable agent (OpenAgents / Wildcard emerging spec). Includes name, description, and operations[].
nlweb.json not found
Publish /.well-known/nlweb.json (Microsoft NLWeb) so agents can interact with the site through a natural-language interface.
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 ~80% vs 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 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 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.
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 agent.json in HTML
Add to your <head>: <link rel="alternate" type="application/json" href="/.well-known/agent.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">.
No OpenGraph meta tags found
Add at minimum og:title, og:description, og:url, og:type, and og:image. Agents and link previews depend on these.
No Twitter Card meta tags found
Add twitter:card, twitter:title, twitter:description, and twitter:image so X / Threads / Bluesky / Discord agents render link previews correctly.
/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.
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. Generate yours at contentsignals.org.
0/48 known AI crawlers have explicit rules
Add explicit User-agent entries for more AI crawlers to maximize discoverability.
<title> length 35 chars: "Internet Assigned Numbers Authority"
<meta name="description"> is missing
Add <meta name="description" content="..."> in <head> with a 70-160 character summary. Agents use this as the canonical short description.
Canonical URL: https://iana.org/
<html lang="..."> is missing
Set the document language: <html lang="en">. Multilingual agents rely on this to pick the right summarization model and avoid mixed-language ranking.
UTF-8 charset declared
Viewport meta present: "width=device-width, initial-scale=1"
5/7 security headers present
No Link header for AI discovery (llms.txt, agent.json)
Add a Link response header pointing to your AI discovery files: Link: </llms.txt>; rel="alternate"; type="text/plain", </.well-known/agent.json>; rel="alternate"; type="application/json"
Site is served over HTTPS
HTTP requests redirect to HTTPS
HSTS max-age=48211200
HSTS does not include subdomains
Add includeSubDomains to apply HSTS across api., docs., etc. Required for preload list submission.
HSTS has preload directive but does not satisfy preload-list requirements
Preload requires max-age >= 31536000 and includeSubDomains. See https://hstspreload.org.
Server-rendered content detected (184 words, 1315 chars of visible text)
Text-to-markup ratio is healthy (21.0%)
Only 2 semantic landmark(s) found
Use semantic HTML tags so AI agents can understand page structure: <header>, <nav>, <main>, <article>, <section>, <footer>.
Single <h1> heading: "Internet Assigned Numbers Authority"
All 8 core AI crawler user-agents receive equivalent responses
Response compressed with Brotli (br)
Cache validator present (Last-Modified)
Conditional request returns 304 Not Modified
Homepage size is reasonable (6.1 KB decompressed)