Is catfact.ninja agent ready?
catfact.ninja is not yet agent ready: it scores 32/100 (grade D) on the w2agent rubric. Weakest areas: Agent Discovery (0), Structured Data (0), Content Quality (17), Agent Auth (20).
Changed since last check
+2 points since the previous check (2026-09-15)
Fixed: Response time
Category scores
Technical
67
Agent Auth
20
Agent Discovery
0
Agent Protocols
60
Content Quality
17
Structured Data
0
Bot Accessibility
71
Agent protocol panel
- A2A agent cardNot found
- OAuth discoveryNot found
- MCP discoveryPresent
- llms.txt validityNot measured
Check results
Bot Accessibility
- ✓No error status codespass
- ✓Response timepass
- ✗XML sitemap existsfail
- ✓AI agent accesspass
- ✓Edge treatment of agent user-agentstracked, not scoredpass
- ✓robots.txt existspass
- ✗Content negotiation (Markdown)fail
- —Declared AI usage preferencestracked, not scoredskip
Structured Data
- ✗OpenGraph meta tagsfail
- ✗Semantic HTML elementsfail
- ✗Appropriate Schema.org typefail
- —JSON-LD validskip
- ✗Heading hierarchyfail
- ✗Schema.org JSON-LD presentfail
- ✗Schema.org completenessfail
Content Quality
- ✗FAQ contentfail
- ✗Answer-first contentfail
- ✗Content lengthfail
- ✓Token efficiency (HTML-to-text ratio)pass
- ✗Freshness signalsfail
- ✗Author attributionfail
- ✓Citation readinesspass
- ✗Lists and tables for structured infofail
Agent Discovery
- —llms.txt follows specskip
- ✗llms.txt existsfail
- —MCP server cardtracked, not scoredskip
- ✗Markdown alternate linksfail
- ✗/.well-known/agent-card.jsonfail
- —llms.txt links resolveskip
Agent Protocols
- ✗Discoverable API endpointsfail
- ✓MCP endpointpass
- ✗Action schemasfail
- —/.well-known/ucpskip
- —Structured formsskip
- —WebMCP imperative APItracked, not scoredskip
- —WebMCP declarative APItracked, not scoredskip
- ✓Reachable as Google-Agentpass
- ✓Reachable as ChatGPT-Userpass
- ✓Reachable as Perplexity-Userpass
Agent Auth
- —MCP authorization (401 challenge → protected resource metadata)skip
- —PKCE S256 supportskip
- ✓Public API surfacepass
- —Client ID Metadata Documents (bonus)skip
- ✗OpenAPI specificationfail
- —Agent/bot auth documentationskip
- ✗OAuth discovery chain (RFC 9728 → RFC 8414)fail
- ✗Developer portalfail
- —Scoped API permissionsskip
- ✗API catalog (RFC 9727)fail
- —Agent operator signing directorytracked, not scoredskip
Technical
- ✓HTTPSpass
- ✓UTF-8 charsetpass
- ✗Canonical URLsfail
- ✗Mobile viewportfail
- ✓Content accessible without JSpass
- ~Security headerspartial
Score history
- 32/100 · rubric v3.0
- 30/100 · rubric v3.0
- 31/100 · rubric v3.0
- 20/100 · rubric v2.0
- 20/100 · rubric v2.0
- 20/100 · rubric v2.0
- 18/100 · rubric v2.0
- 18/100 · rubric v2.0
- 20/100 · rubric v2.0
- 28/100 · rubric v2.0
- 28/100 · rubric v2.0