# Zentrum für Gefäßmedizin Düsseldorf: Agent-Direct Score C (67.7%)

Site: https://www.gefaesszentrumddorf.de/
Report: https://directindex.org/r/venperfect.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.)
Zentrum für Gefäßmedizin Düsseldorf is partly visible to agents.
An AI assistant can open Zentrum für Gefäßmedizin Düsseldorf'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/duesseldorf/zentrum-fuer-gefaessmedizin-duesseldorf?utm_campaign=website-button&utm_source=zentrum-fuer-gefaessmedizin-duesseldorf-website-button&utm_medium=referral&utm_content=option-8&utm_term=zentrum-fuer-gefaessmedizin-duesseldorf (through doctolib acting for the business)
- Phone: +492119726750
- Address: Luise-Rainer-Straße 6-10, 40235, Düsseldorf

## Nearby, also direct
Places near Zentrum für Gefäßmedizin Düsseldorf that take a booking or an order on their own website, with no marketplace in between.
- GRADUS (20 m): https://directindex.org/r/praxis-gradus.de
- Accz | A Klinieken (60 m): https://directindex.org/r/aklinieken.nl
- Dr. Martin Bloch (160 m): https://directindex.org/r/anaesthesio.de
- Physio Movement Physiotherapie (190 m): https://directindex.org/r/physiomovement.com

## What to fix first
- **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
- **Structured data is incomplete.** (+6 points) Missing: address, telephone, opening hours. Guide: https://directindex.org/guides/structured-data-restaurant
- **The phone number on the site doesn't match the open map data.** The site shows "+4921144773550", but OpenStreetMap or Overture Maps lists +492119726750. An assistant that sees two numbers can't tell which one to trust. Fix whichever is wrong, on the site or in the map data at openstreetmap.org.

## What the site tells visitors (Measured, not scored)
- **The footer says © 2023.** Visitors and assistants may read that year as the last time anyone looked after the site. In Düsseldorf, 73% of comparable sites that show a year say 2025 or later.
- **No English version declared.** Visitors from abroad, and assistants answering in English, read the page as it is. In Düsseldorf, 9.2% 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": "Organization",
  "name": "Zentrum für Gefäßmedizin Düsseldorf",
  "url": "https://www.gefaesszentrumddorf.de/",
  "telephone": "+492119726750",
  "address": "Luise-Rainer-Straße 6-10, 40235, Düsseldorf",
  "geo": {
    "@type": "GeoCoordinates",
    "latitude": 51.2344367,
    "longitude": 6.8206958
  },
  "potentialAction": [
    {
      "@type": "ReserveAction",
      "target": {
        "@type": "EntryPoint",
        "urlTemplate": "https://www.doctolib.de/praxis/duesseldorf/zentrum-fuer-gefaessmedizin-duesseldorf?utm_campaign=website-button&amp;utm_source=zentrum-fuer-gefaessmedizin-duesseldorf-website-button&amp;utm_medium=referral&amp;utm_content=option-8&amp;utm_term=zentrum-fuer-gefaessmedizin-duesseldorf",
        "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.
- **Structured data found (Organization).** no address, phone or hours in it
- **Appointments through doctolib on your own domain.** There's no marketplace commission, and the customer stays yours.

## Where it stands
177 of 1628 in Düsseldorf dentists, clinics and vets. Top 11% 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 | 96% | yes |
| Publish the menu or price list as HTML | 8% | no |
| Let AI crawlers in (no block at the server or in robots.txt) | 89% | yes |
| Structured data with address, phone and hours | 16% | no |
| Have an llms.txt | 27% | yes |

Nearest places in the index: GRADUS (B, 21 m, https://directindex.org/r/praxis-gradus.de); Medical Center Düsseldorf (C, 38 m, https://directindex.org/r/medical-center-duesseldorf.de); Praxis Markos Botsaris (F, 40 m, https://directindex.org/r/praxis-botsaris.de); Löwenstein Medical Schlaf-Atem-Zentrum (D, 41 m, https://directindex.org/r/loewensteinmedical.com); Klinik für Schlafmedizin Düsseldorf (F, 44 m, https://directindex.org/r/klinik-fuer-schlafmedizin.de); Accz | A Klinieken (B, 62 m, https://directindex.org/r/aklinieken.nl); Dr. Martin Bloch (B, 163 m, https://directindex.org/r/anaesthesio.de); Kariger & Hufnagel (C, 168 m, https://directindex.org/r/kh-zahnarztpraxis.de); Dr. Med. Gerhard Rohn (F, 173 m, https://directindex.org/r/praxis-dr-rohn.de); Physio Movement Physiotherapie (B, 192 m, https://directindex.org/r/physiomovement.com).

## 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 WordPress 57% (28% A or B, 145483 sites); Sites using Doctolib 56% (10% A or B, 4479 sites); This site 67.7%.

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

## Businesses like Zentrum für Gefäßmedizin Düsseldorf in Düsseldorf dentists, clinics and vets

| Group | Sites | Avg score | A or B | This site |
|---|---|---|---|---|
| Businesses of the same kind in Düsseldorf dentists, clinics and vets | 1628 | 46% | 9% | 67.7% |
| Sites built with WordPress in Düsseldorf dentists, clinics and vets | 688 | 55% | 17% | 67.7% |
| Sites using Doctolib in Düsseldorf dentists, clinics and vets | 219 | 56% | 9% | 67.7% |
| Sites built with WordPress and using Doctolib in Düsseldorf dentists, clinics and vets | 130 | 58% | 12% | 67.7% |

The best of the sites built with WordPress and using Doctolib in Düsseldorf dentists, clinics and vets: Dr. Med. Daniel Stosch (B 76.9%, https://directindex.org/r/orthopaedie-grunerstrasse.de); Institut Für Prävention Und Sportmedizin (B 76.9%, https://directindex.org/r/cardio-centrum.com); Kardiologische Gemeinschaftspraxis Kardiologen (B 76.9%, https://directindex.org/r/cardio-centrum.com); Preventicsone - Facharztzentrum Für Prävention, Kardiologie Und Sportmedizin (B 76.9%, https://directindex.org/r/preventics.one); DYADERM | DERMATOLOGIE & ÄSTHETIK DÜSSELDORF | DIMITRIOS GEORGAS (B 75.4%, https://directindex.org/r/dyaderm.de).

With the two fixes above (No list of services and prices found; Structured data is incomplete), the score would be about 87.7%. That would be 3rd of 1,628 in Düsseldorf dentists, clinics and vets, up from 177th.

## The direct record
What agents get for Zentrum für Gefäßmedizin Düsseldorf, as JSON: https://directindex.org/api/direct/venperfect.de
- Book: https://www.doctolib.de/praxis/duesseldorf/zentrum-fuer-gefaessmedizin-duesseldorf?utm_campaign=website-button&amp;utm_source=zentrum-fuer-gefaessmedizin-duesseldorf-website-button&amp;utm_medium=referral&amp;utm_content=option-8&amp;utm_term=zentrum-fuer-gefaessmedizin-duesseldorf (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: +492119726750
- Stable links that count: https://directindex.org/go/venperfect.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 | 9 | 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/venperfect.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: 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: 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: yes

Keep watching this business (https://directindex.org/r/venperfect.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/venperfect.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=venperfect.de&force=1