# Dr. Johan Mertens: Agent-Direct Score C (61.5%)

Site: https://frauenarzt-mertens.de/
Report: https://directindex.org/r/frauenarzt-mertens.de
Scanned: 2026-10-16 (Provisional, with the action test and the assistant citation check still to come. The hatched part of the bar isn't measured yet.)
Dr. Johan Mertens is partly visible to agents.
An AI assistant can open Dr. Johan Mertens's website. It can't find a menu or price list, so it answers from other sites. It can't find a link to book or order online.

## Direct links
- Phone: +49 211 414447

## Nearby, also direct
Places near Dr. Johan Mertens that take a booking or an order on their own website, with no marketplace in between.
- Dr. Javadi & Kollegen (0 m): https://directindex.org/r/praxis-javadi.de
- Dr. Färber - Arzt Praxis - Hausarzt - Internist - Allgemeinmediziner (200 m): https://directindex.org/r/doc-faerber.de
- MultiVision GmbH (830 m): https://directindex.org/r/multivision.de
- Physio Brune (1.3 km): https://directindex.org/r/physio-brune.de

## What to fix first
- **No online booking link on the website.** (+15 points) There's no link on the site for an agent to follow. If you take bookings or orders through a platform, link to it from the site so agents can find it. Add an online appointment page on your own domain. Guide: https://directindex.org/guides/book-direct-on-your-own-website
- **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
- **No llms.txt.** (no points, but worth doing) Optional for now and cheap to add. It's a short text file that describes the business for language models. Guide: https://directindex.org/guides/llms-txt-for-a-business

## 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 Düsseldorf, 9.2% of comparable sites declare one.

## Fix kit: What to paste

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

```
# Dr. Johan Mertens

> physician in Düsseldorf dentists, clinics and vets. Phone +49 211 414447.

## About

- Website: https://frauenarzt-mertens.de/
- 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 main AI user agents.
- **AI crawlers get the page.** GPTBot, ClaudeBot and PerplexityBot all got a normal response.
- **Structured data found (Physician).** address, phone, opening hours

## Where it stands
360 of 1628 in Düsseldorf dentists, clinics and vets. Top 22% 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% | no |
| 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% | yes |
| Have an llms.txt | 27% | no |

Nearest places in the index: Dr. medic Daniel Lax (D, 3 m, https://directindex.org/r/allgemeinarzt-duesseldorf.de); Dr. Javadi & Kollegen (C, 3 m, https://directindex.org/r/praxis-javadi.de); Dr. Färber - Arzt Praxis - Hausarzt - Internist - Allgemeinmediziner (C, 195 m, https://directindex.org/r/doc-faerber.de); Zahnarzt Anis Al Balkhi (D, 212 m, https://directindex.org/r/zahnarztpraxis-lichtenbroich.de); Herr Dr. Med. Volker Kukalla (D, 356 m, https://directindex.org/r/kukalla.de); Alexander Wallau (F, 818 m, https://directindex.org/r/physiotherapie-wallau.de); MultiVision GmbH (D, 825 m, https://directindex.org/r/multivision.de); Zickuhr Thorsten Dr.med.dent. Zahnarzt (F, 861 m, https://directindex.org/r/dr-zickuhr.de); Dr. Z Beteiligungs- und Verwaltungs GmbH (F, 1082 m, https://directindex.org/r/doktor-z.de); Physio Brune (C, 1296 m, https://directindex.org/r/physio-brune.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 WordPress 58% (29% A or B, 108921 sites); This site 61.5%.

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

## Businesses like Dr. Johan Mertens 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% | 61.5% |
| Sites built with WordPress in Düsseldorf dentists, clinics and vets | 688 | 55% | 17% | 61.5% |

The best of the sites built with WordPress in Düsseldorf dentists, clinics and vets: Zimmermann Norbert F.-j. Heilpraktiker (A 86.2%, https://directindex.org/r/naturheilzentrum.com); BAllee23 Zahnarztpraxis Dr. Sonia Mansour, M.Sc. (B 84.6%, https://directindex.org/r/ballee23.de); Dr. Med. Alexander Hilpert (B 84.6%, https://directindex.org/r/dr-hilpert.de); Ipf Arbeitsmedizin Gmbh (B 84.6%, https://directindex.org/r/ipf-arbeitsmedizin.de); Kinderarztpraxis Dr. Kaldewey (B 84.6%, https://directindex.org/r/die-praxis-fuer-kinder.de).

With the two fixes above (No online booking link on the website; No list of services and prices found), the score would be about 95.4%, which would be first of 1,628 in Düsseldorf dentists, clinics and vets.

## The direct record
What agents get for Dr. Johan Mertens, as JSON: https://directindex.org/api/direct/frauenarzt-mertens.de
- Book: none on record
- Order: none on record
- Menu: none on record
- Hours: none on record
- Phone: +49 211 414447

## 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

A browser path finder looked at the rendered home page on 2026-10-19 and found no booking or ordering link the scan had missed.

## Score breakdown
| Component | Points | Available |
|---|---|---|
| Reachable | 25 | 25 |
| Readable | 15 | 25 |
| Actionable | 0 | 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/frauenarzt-mertens.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: 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: yes

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