Top fixes
- Crawler access (+2 points): Add a group for GPTBot, ClaudeBot, Amazonbot and the others with "Allow: /" (or drop the blanket "Disallow: /") if you want answer engines to cite you. How to fix
- Readable without JavaScript (+2 points): Server-render or prerender the first paint so the HTML carries your text; agents and most crawlers do not execute your scripts. How to fix
- MCP census entry (+2 points): Expose a Streamable HTTP MCP endpoint at /mcp (or a paid x402 route) so agents can call you, not just read you. How to fix
Ordered by points recoverable. Each area: 2/2 pass, 1/2 warn, 0/2 fail.
operabase.com is graded D. The $49 AI Visibility Full Report turns the failing check above (crawler access) into a prioritized, specific fix list for operabase.com, and tests 8 real buyer questions across ChatGPT-class models to show what AI answers say about you today.
Get the full report — $49 Stripe checkout asks for your brand name and category; the report is ready about 60 seconds after payment. Legal notices and the MCP census entry are not in this report (free: Compliance Desk check, census claim).
Crawler access (robots.txt)
0/2 · fail
3 of 8 AI crawlers may read the site, 5 disallowed
- GET /robots.txt -> HTTP 200, 4.4 KB, 24 user-agent groups
- Allowed: OAI-SearchBot (via *) (4 path rules), PerplexityBot (via *) (4 path rules), Google-Extended (via *) (4 path rules)
- Disallowed: GPTBot, ClaudeBot, Amazonbot, CCBot, Bytespider
- Content-Signal: search=yes, ai-input=yes, ai-train=no
- Sitemap declared: https://www.operabase.com/sitemap_static.xml, https://www.operabase.com/sitemap_professions.xml, https://www.operabase.com/sitemap_artists.xml (+5)
Fix: Add a group for GPTBot, ClaudeBot, Amazonbot and the others with "Allow: /" (or drop the blanket "Disallow: /") if you want answer engines to cite you.
Machine-readable surfaces
2/2 · pass
1 of 7 surfaces present (/llms.txt); sitemap via robots.txt
- /llms.txt: HTTP 200, 15 KB of text
- /sitemap.xml: HTTP 404
- /.well-known/x402: HTTP 404
- /.well-known/agent-card.json: HTTP 404
- /.well-known/mcp-registry-auth: HTTP 404
- /openapi.json: HTTP 404
- /ai.txt: HTTP 404
- Sitemap declared in robots.txt instead: https://www.operabase.com/sitemap_static.xml
Fix: Publish one agent surface: /openapi.json, /.well-known/agent-card.json, or /.well-known/x402 if you sell to agents.
Readable without JavaScript
0/2 · fail
Home page is a JS-only shell
- GET https://operabase.com/ -> HTTP 200 after 2 redirects (final: https://www.operabase.com/en), text/html, 749 KB
- 0 characters of visible text with scripts, styles and tags removed; <title>: "Operabase | The Global Reference for Opera, Classical, Ballet & Musicals Since 1"
- 31 external scripts, 43 inline; <noscript> present
Fix: Server-render or prerender the first paint so the HTML carries your text; agents and most crawlers do not execute your scripts.
Structured data
2/2 · pass
2 JSON-LD blocks, Open Graph complete
- 2 JSON-LD blocks: @type Organization, WebSite, Dataset
- Open Graph: og:title "Operabase | The Global Reference for Opera, Classical, Ballet & Musica"; og:description present
- meta description: present
Fix: Nothing to fix here.
Legal notices (TAKE IT DOWN desk check)
not measured
Unavailable
- takeitdown.agentexchange.work/check.json: refused takeitdown.agentexchange.work: hosts on agentexchange.work cannot be graded from inside the same Cloudflare zone; every check would - unavailable
Fix: Re-run in a few minutes; the notice check could not be completed.
MCP census entry (index.agentexchange.work)
0/2 · fail
Not selling to agents: no census entry, no /mcp endpoint
- census unavailable (refused index.agentexchange.work: hosts on agentexchange.work cannot be graded from inside the same Cloudflare zone; every check would time )
- GET /mcp -> HTTP 404: no MCP endpoint at the root
Fix: Expose a Streamable HTTP MCP endpoint at /mcp (or a paid x402 route) so agents can call you, not just read you.
$49 AI Visibility Full Report
This grade is free and automated. The paid next step is the $49 AI Visibility Full Report (which brands a representative AI model, standing in for ChatGPT-class assistants, names when buyers ask about your category, with a prioritized fix list) from aivisibility.agentexchange.work, run for operabase.com. It includes:
- 8 real buyer questions tested across ChatGPT-class models
- Competitor share-of-voice: who AI names, how often, versus you
- Full GEO site audit with prioritized, specific fixes
- Agent-Readiness Score: crawler access, llms.txt, schema, discovery manifest
- Custom 30/60/90-day action plan to get cited by ChatGPT, Perplexity and Google AI Overviews
- Shareable report, generated in about 60 seconds after checkout
Get the Full Report — $49 Stripe checkout asks for your brand name and category; the report is ready about 60 seconds after payment. Legal notices and the MCP census entry are not in this report (free: Compliance Desk check, census claim).
