# Dieter H. Rixen: Agent-Direct Score C (55.4%)

Site: http://www.praxis-rixen.de/
Report: https://directindex.org/r/praxis-aldag.de
Scanned: 2026-10-20 (Provisional, with the action test and the assistant citation check still to come. The hatched part of the bar isn't measured yet.)
Dieter H. Rixen is partly visible to agents.
An AI assistant can open Dieter H. Rixen's website. It can't find a menu or price list, so it answers from other sites. It finds a way to book or order directly, through Doctolib.

## Direct links
- Book directly: https://www.doctolib.de/praxis/frankfurt-am-main/praxis-fuer-allgemeinmedizin-dr-nikolai-u-aldag?utm_campaign=website-button&utm_source=praxis-fuer-allgemeinmedizin-dr-nikolai-u-aldag-website-button&utm_medium=referral&utm_content=custom&utm_term=praxis-fuer-allgemeinmedizin-dr-nikolai-u-aldag (through doctolib acting for the business)
- Phone: 069611742
- Address: Auf dem Mühlberg 73, 60599, Frankfurt am Main

## Nearby, also direct
Places near Dieter H. Rixen that take a booking or an order on their own website, with no marketplace in between.
- Praxis für Allgemeinmedizin Nikolai U. Aldag (10 m): https://directindex.org/r/praxis-aldag.de
- ZAHN.RAUM (530 m): https://directindex.org/r/zahnraum-henningerturm.de
- Zahnzirkus (550 m): https://directindex.org/r/zahnzirkus.de
- Geriamed Gmbh (600 m): https://directindex.org/r/geriamed-gmbh.de

## What to fix first
- **No structured data for the business.** (+14 points) Add schema.org JSON-LD for the business (Dentist, MedicalClinic, Physiotherapy or the closest type, with name, address, telephone and openingHoursSpecification). Every assistant reads this block first, and the fix kit below has it filled in. Guide: https://directindex.org/guides/structured-data-restaurant
- **No list of services and prices found.** (+7 points) Agents answer 'what do they treat and what does it cost?' from directories instead. Add a page that lists services and prices as text, and link to it from the homepage. Guide: https://directindex.org/guides/menu-pdf-ai

## What the site tells visitors (Measured, not scored)
- **No English version declared.** Visitors from abroad, and assistants answering in English, read the page as it is. In Frankfurt, 11% of comparable sites declare one.

## Fix kit: What to paste

Structured data (JSON-LD). Paste it as one block in the page's head, or in the builder's custom code box. Change anything that's wrong.

```html
<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "LocalBusiness",
  "name": "Dieter H. Rixen",
  "url": "http://www.praxis-rixen.de/",
  "telephone": "069611742",
  "address": "Auf dem Mühlberg 73, 60599, Frankfurt am Main",
  "geo": {
    "@type": "GeoCoordinates",
    "latitude": 50.100003,
    "longitude": 8.701083
  },
  "potentialAction": [
    {
      "@type": "ReserveAction",
      "target": {
        "@type": "EntryPoint",
        "urlTemplate": "https://www.doctolib.de/praxis/frankfurt-am-main/praxis-fuer-allgemeinmedizin-dr-nikolai-u-aldag?utm_campaign=website-button&utm_source=praxis-fuer-allgemeinmedizin-dr-nikolai-u-aldag-website-button&utm_medium=referral&utm_content=custom&utm_term=praxis-fuer-allgemeinmedizin-dr-nikolai-u-aldag",
        "actionPlatform": [
          "http://schema.org/DesktopWebPlatform",
          "http://schema.org/MobileWebPlatform"
        ]
      },
      "result": {
        "@type": "Reservation",
        "name": "Reservation"
      }
    }
  ]
}
</script>
```

## Already right
- **robots.txt lets AI crawlers in.** No rule blocks the main AI user agents.
- **AI crawlers get the page.** GPTBot, ClaudeBot and PerplexityBot all got a normal response.
- **Appointments through doctolib on your own domain.** There's no marketplace commission, and the customer stays yours.

## Where it stands
612 of 1670 in Frankfurt dentists, clinics and vets. Top 37% of the sites scanned in this index.

| What the top 10% 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 | 5% | no |
| Let AI crawlers in (no block at the server or in robots.txt) | 95% | yes |
| Structured data with address, phone and hours | 14% | no |
| Have an llms.txt | 26% | yes |

Nearest places in the index: Praxis für Allgemeinmedizin Nikolai U. Aldag (C, 12 m, https://directindex.org/r/praxis-aldag.de); Physiotherapie am Mühlberg (F, 240 m, https://directindex.org/r/physio-muehlberg.com); Podologie Frankfurt Praxisgemeinschaft (F, 243 m, https://directindex.org/r/podologiefrankfurt.de); LiKila - lieben lernen wachsen (F, 331 m, https://directindex.org/r/likila-liebenlernenwachsen.de); Whosurphysio - Julian Klug - Physiotherapie (C, 531 m, https://directindex.org/r/whosurphysio.com); Praxis Für Prävention - Hausarztpraxis (F, 531 m, https://directindex.org/r/praxis-frankfurt.com); ZAHN.RAUM (D, 533 m, https://directindex.org/r/zahnraum-henningerturm.de); Praxis für Physiotherapie Birgit Moll (F, 540 m, https://directindex.org/r/physiotherapie-moll.de); Zahnzirkus (C, 554 m, https://directindex.org/r/zahnzirkus.de); Geriamed Gmbh (C, 604 m, https://directindex.org/r/geriamed-gmbh.de).

## What assistants answer
The assistants haven't been asked about this business yet. They're asked about the top-ranked businesses in each city index, and about any business as soon as it's claimed. Claim this page to be included.


Compared with its peers: Sites built with Duda 41% (9% A or B, 1718 sites); Sites using Doctolib 55% (8% A or B, 2742 sites); This site 55.4%.

See what an AI agent reads on this site: https://directindex.org/r/praxis-aldag.de/agent-view

## Businesses like Dieter H. Rixen in Frankfurt dentists, clinics and vets

| Group | Sites | Avg score | A or B | This site |
|---|---|---|---|---|
| Businesses of the same kind in Frankfurt dentists, clinics and vets | 1670 | 48% | 13% | 55.4% |
| Sites built with Duda in Frankfurt dentists, clinics and vets | 8 | 48% | 0% | 55.4% |
| Sites using Doctolib in Frankfurt dentists, clinics and vets | 197 | 57% | 12% | 55.4% |
| Sites built with Duda and using Doctolib in Frankfurt dentists, clinics and vets | 4 | 55% | 0% | 55.4% |

The best of the sites using Doctolib in Frankfurt dentists, clinics and vets: Zentrum Für Ambulante Operative Gynäkologie (A 87.7%, https://directindex.org/r/aop-ffm.de); Dr. med. Annegret Lindner (B 84.6%, https://directindex.org/r/lindner-kind.de); Dr. Erb (B 80%, https://directindex.org/r/hno-f.de); Dres. Mader (B 76.9%, https://directindex.org/r/zahnaerzte-mader.de); FAKTORZAHN (B 76.9%, https://directindex.org/r/faktorzahn.de).

With the two fixes above (No structured data for the business; No list of services and prices found), the score would be about 87.7%. That would be 3rd of 1,670 in Frankfurt dentists, clinics and vets, up from 612th.

## The direct record
What agents get for Dieter H. Rixen, as JSON: https://directindex.org/api/direct/praxis-aldag.de
- Book: https://www.doctolib.de/praxis/frankfurt-am-main/praxis-fuer-allgemeinmedizin-dr-nikolai-u-aldag?utm_campaign=website-button&utm_source=praxis-fuer-allgemeinmedizin-dr-nikolai-u-aldag-website-button&utm_medium=referral&utm_content=custom&utm_term=praxis-fuer-allgemeinmedizin-dr-nikolai-u-aldag (vendor on own site: Doctolib; found by the scan of 2026-10-20, not yet tested)
- Order: none on record
- Menu: none on record
- Hours: none on record
- Phone: 069611742
- Stable links that count: https://directindex.org/go/praxis-aldag.de/book

## 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): no
- ACP discovery document (/.well-known/acp.json, OpenAI and Stripe's Agentic Commerce Protocol): no
- 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): no
- Vendor terms for agents, Doctolib: Not stated. Doctolib's patient terms (April 2026), article 19, forbid web scraping and make automated data harvesting subject to Doctolib's prior consent; they do not address an agent booking an appointment for a patient, and no API or partner path for agents is documented. Read 2026-10-15: https://media.doctolib.com/image/upload/v1776929137/legal/B2C_T_Cs.pdf

## Score breakdown
| Component | Points | Available |
|---|---|---|
| Reachable | 25 | 25 |
| Readable | 1 | 25 |
| Actionable | 10 | 15 (the action test: pending) |
| Cited | 0 | 0 (the assistant citation check: pending) |

## Agent readiness (Cloudflare)
Level 1 of 5, Basic Web Presence. Cloudflare's report: https://isitagentready.com/praxis-aldag.de
- Link headers on the homepage: no (how: https://isitagentready.com/.well-known/agent-skills/link-headers/SKILL.md)
- sitemap.xml: yes
- AI bot rules in robots.txt: no (how: https://isitagentready.com/.well-known/agent-skills/ai-rules/SKILL.md)
- 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: yes
- 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

Keep watching this business (https://directindex.org/r/praxis-aldag.de/plan): the assistants are asked again every month, and you see what changed. 2 EUR a month or 19 EUR a year.
Deep report: https://directindex.org/r/praxis-aldag.de/deep. Ten questions phrased the way people ask them, each assistant's full answer, the eight nearest similar places, the fix plan and a PDF. 5 EUR, paid once. Reading and scanning stay free. These few euros pay for the questions sent to the assistants and for the servers.
Methodology: https://directindex.org/methodology · Rescan now: https://directindex.org/scan?url=praxis-aldag.de&force=1