# Catacombe di San Callisto: Agent-Direct Score C (60%)

Site: https://www.catacombesancallisto.it/
Report: https://directindex.org/r/catacombesancallisto.it
Scanned: 2026-10-14 (Provisional: the assistant citation check still to come; the hatched part of the bar is not measured yet.)
Catacombe di San Callisto is partly visible to agents.

## Direct links
- Book directly: https://www.catacombesancallisto.it/it/prenota.php (on the business's own site)
- Phone: +39 06 513 0151

## What to fix first
- **No structured data for the business.** (+14 points) Add schema.org JSON-LD for the business (TouristAttraction, Museum, TravelAgency or the closest type, with name, address, telephone and openingHoursSpecification). It is the one block every assistant reads first; the fix kit below has it filled in. Guide: https://directindex.org/guides/structured-data-restaurant
- **No tickets and prices found.** (+7 points) Agents answer 'what does it cost and when' from marketplaces instead. Add a page with tickets, times and prices as text and link it from the homepage. Guide: https://directindex.org/guides/menu-pdf-ai
- **No llms.txt.** (no points, still worth doing) Optional today, cheap to add: a short text file describing the business for language models. Guide: https://directindex.org/guides/llms-txt-for-a-business

## Fix kit: What to paste

Structured data (JSON-LD). One block in the page's head, or in the builder's custom-code slot. Replace anything that is wrong.

```html
<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "TouristAttraction",
  "name": "Catacombe di San Callisto",
  "url": "https://www.catacombesancallisto.it/",
  "telephone": "+39 06 513 0151",
  "email": "info@catacombesancallisto.it",
  "address": {
    "@type": "PostalAddress",
    "streetAddress": "Via Appia Antica 110",
    "postalCode": "00179",
    "addressLocality": "Roma"
  },
  "geo": {
    "@type": "GeoCoordinates",
    "latitude": 41.8589429,
    "longitude": 12.5106568
  },
  "openingHours": "Th-Tu,PH 09:00-12:00,14:00-17:00; Jan 01 off; easter off; Dec 25 off, 2025 Jan 15-2025 Feb 12 off",
  "potentialAction": [
    {
      "@type": "ReserveAction",
      "target": {
        "@type": "EntryPoint",
        "urlTemplate": "https://www.catacombesancallisto.it/it/prenota.php",
        "actionPlatform": [
          "http://schema.org/DesktopWebPlatform",
          "http://schema.org/MobileWebPlatform"
        ]
      },
      "result": {
        "@type": "Reservation",
        "name": "Reservation"
      }
    }
  ]
}
</script>
```

llms.txt. Save as /llms.txt at the root of the site.

```
# Catacombe di San Callisto

> tourist attraction in Via Appia Antica 110 00179 Roma, Rome tours, attractions and museums. Phone +39 06 513 0151.

## Book or order directly

- Book: https://www.catacombesancallisto.it/it/prenota.php (on the business's own site)

## Opening hours

Th-Tu,PH 09:00-12:00,14:00-17:00; Jan 01 off; easter off; Dec 25 off, 2025 Jan 15-2025 Feb 12 off

## About

- Website: https://www.catacombesancallisto.it/
- This file follows llms.txt (https://llmstxt.org): a short plain-text description for language models.
```

## Already right
- **robots.txt lets AI crawlers in.** No rule blocks the key AI user agents.
- **AI crawlers get the page.** GPTBot, ClaudeBot and PerplexityBot all received a normal response.
- **Tickets on your own site.** Agents can buy tickets without a marketplace in the loop.

## Where it stands
56 of 149 in Rome tours, attractions and museums. Top 38% of the sites scanned in this index.

| What the top tenth of the index does | Top 10% | This site |
|---|---|---|
| Take bookings or orders on their own domain | 100% | yes |
| Publish the menu or price list as HTML | 27% | no |
| Let AI crawlers in (no edge block, no robots.txt block) | 100% | yes |
| Structured data with address, phone and hours | 7% | no |
| Have an llms.txt | 27% | no |

Nearest places in the index: Catacombe di Domitilla (B, 418 m, https://directindex.org/r/catacombedomitilla.it); Catacombe di San Sebastiano (F, 542 m, https://directindex.org/r/catacombe.org); Basilica di San Sebastiano fuori le mura (C, 551 m, https://directindex.org/r/sansebastianofuorilemura.org); Gruppo Storico Romano (F, 1539 m, https://directindex.org/r/gruppostoricoromano.it); Museo delle Mura (B, 1786 m, https://directindex.org/r/museodellemuraroma.it); Il nuovo parallelo (F, 1808 m, https://directindex.org/r/nuovoparalleloviaggi.it); Villa Trebazia (F, 1891 m, https://directindex.org/r/villa-trebazia.com); Dias Travel (D, 2076 m, https://directindex.org/r/diastravel.it); Basilica di San Paolo fuori le mura (C, 2802 m, https://directindex.org/r/basilicasanpaolo.org); Centrale Montemartini (B, 2833 m, https://directindex.org/r/centralemontemartini.org).

## What assistants answer
Not asked yet. Assistants are asked about the top-ranked businesses in each city index, and about every claimed business the moment it is claimed; claim this page to be included.

See what an AI agent reads on this site: https://directindex.org/r/catacombesancallisto.it/agent-view

## Businesses like Catacombe di San Callisto in Rome tours, attractions and museums

| Group | Sites | Avg score | A or B | This site |
|---|---|---|---|---|
| Same kind in Rome tours, attractions and museums | 149 | 48% | 21% | 60% |

The best of Same kind in Rome tours, attractions and museums: Explora (A 86.2%, https://directindex.org/r/mdbr.it); GAMM - Museo del Videogioco (B 80%, https://directindex.org/r/gammuseum.com); Museo delle Civiltà (B 80%, https://directindex.org/r/museodellecivilta.it); Archivio museo storico di Fiume (B 78.8%, https://directindex.org/r/fiume-rijeka.it); Scatola Archeologica (B 78.8%, https://directindex.org/r/scatolaarcheologica.it).

With the two fixes above (No structured data for the business; No tickets and prices found) the score would be about 86.3%: first of 149 in Rome tours, attractions and museums.

## The direct record
What agents get for Catacombe di San Callisto, as JSON: https://directindex.org/api/direct/catacombesancallisto.it
- Book: https://www.catacombesancallisto.it/it/prenota.php (own site; could not verify: partial (2026-10-14))
- Order: none on record
- Menu: none on record
- Hours: Th-Tu,PH 09:00-12:00,14:00-17:00; Jan 01 off; easter off; Dec 25 off, 2025 Jan 15-2025 Feb 12 off (from OpenStreetMap)
- Phone: +39 06 513 0151
- Stable links that count: https://directindex.org/go/catacombesancallisto.it/book
- Agents and people followed 1 direct link to this business this month (1 by AI agents).

## Can an agent transact?
Measured, not scored (the score stays at spec v1.0).
- UCP profile (/.well-known/ucp, Google and Shopify's Universal Commerce Protocol): not measured
- ACP discovery document (/.well-known/acp.json, OpenAI and Stripe's Agentic Commerce Protocol): not measured
- MCP server card (/.well-known/mcp/server-card.json): no
- Ordering vendor that takes agent orders (Square, Toast, or a vendor whose terms allow agents): not measured

Not measured at this scan; the next scan measures it.

## Score breakdown
| Component | Points | Available |
|---|---|---|
| Reachable | 25 | 25 |
| Readable | 1 | 25 |
| Actionable | 22 | 30 |
| Cited | 0 | 0 (the assistant citation check: pending) |

## Agent readiness (Cloudflare)
Level 0 of 5, Not Ready. Cloudflare's report: https://isitagentready.com/catacombesancallisto.it
- Link headers on the homepage: no (how: https://isitagentready.com/.well-known/agent-skills/link-headers/SKILL.md)
- sitemap.xml: no (how: https://isitagentready.com/.well-known/agent-skills/sitemap/SKILL.md)
- AI bot rules in robots.txt: yes
- Content Signals in robots.txt: no (how: https://isitagentready.com/.well-known/agent-skills/content-signals/SKILL.md)
- Markdown on Accept: text/markdown: no (how: https://isitagentready.com/.well-known/agent-skills/markdown-negotiation/SKILL.md)
- llms.txt: no (how: https://isitagentready.com/.well-known/agent-skills/llms-txt/SKILL.md)
- API catalog (RFC 9727): no (how: https://isitagentready.com/.well-known/agent-skills/api-catalog/SKILL.md)
- MCP server card: no (how: https://isitagentready.com/.well-known/agent-skills/mcp-server-card/SKILL.md)
- A2A agent card: no (how: https://isitagentready.com/.well-known/agent-skills/a2a-agent-card/SKILL.md)
- Agent Skills index: no (how: https://isitagentready.com/.well-known/agent-skills/agent-skills/SKILL.md)
- OAuth or OIDC discovery: no (how: https://isitagentready.com/.well-known/agent-skills/oauth-discovery/SKILL.md)
- OAuth protected resource metadata: no (how: https://isitagentready.com/.well-known/agent-skills/oauth-protected-resource/SKILL.md)
- auth.md: no (how: https://isitagentready.com/.well-known/agent-skills/auth-md/SKILL.md)
- Web Bot Auth key directory: no (how: https://isitagentready.com/.well-known/agent-skills/web-bot-auth/SKILL.md)
- ARD capability manifest: no (how: https://isitagentready.com/.well-known/agent-skills/ard/SKILL.md)
- DNS-AID records: no (how: https://isitagentready.com/.well-known/agent-skills/dns-aid/SKILL.md)
- WebMCP tools on the page: no (how: https://isitagentready.com/.well-known/agent-skills/webmcp/SKILL.md)
- JSON-LD for the business: no

Deep report: https://directindex.org/r/catacombesancallisto.it/deep. Ten questions the way people ask, each assistant's full answer, the eight nearest similar places, the fix plan and a PDF: 19 EUR, one-off.
Methodology: https://directindex.org/methodology · Rescan now: https://directindex.org/scan?url=catacombesancallisto.it&force=1