# Dr. med. Hans-Eckhard Langer: Agent-Direct Score D (50.8%) Site: https://www.rhio.de/ Report: https://directindex.org/r/rhio.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. med. Hans-Eckhard Langer is hard for agents to use. An AI assistant can open Dr. med. Hans-Eckhard Langer'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 520666 - Address: Fürstenwall 99 40217 Düsseldorf ## Nearby, also direct Places near Dr. med. Hans-Eckhard Langer that take a booking or an order on their own website, with no marketplace in between. - Zahnarzt am Kirchplatz Düsseldorf (130 m): https://directindex.org/r/duesselzahn.de - Hausarzt Düsseldorf I Dr. Cemal Selcan I Allgemeinmedizin I türk doktor (140 m): https://directindex.org/r/praxis-selcan.de - Herr Dr. Med. Anh Khoa Nguyen (150 m): https://directindex.org/r/praxisflorastrasse.com - Dr. med. Markus Mann (150 m): https://directindex.org/r/chirurgie-drmann.de - Thomas Roßbach (150 m): https://directindex.org/r/frauenarzt-rossbach.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 - **Structured data is incomplete.** (+7 points) Missing: address, telephone, opening hours. 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 - **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 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 ``` llms.txt. Save as /llms.txt at the root of the site. ``` # Dr. med. Hans-Eckhard Langer > physician in Fürstenwall 99 40217 Düsseldorf, Düsseldorf dentists, clinics and vets. Phone +49 211 520666. ## About - Website: https://www.rhio.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 (Organization).** no address, phone or hours in it ## Where it stands 703 of 1628 in Düsseldorf dentists, clinics and vets. Top 43% 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% | no | | Have an llms.txt | 27% | no | Nearest places in the index: Meisen Physiotherapie (F, 3 m, https://directindex.org/r/jimdosite.com); Institut Für Ergotherapie Düsseldorf (D, 99 m, https://directindex.org/r/ergo-bilk.de); Zahnarzt am Kirchplatz Düsseldorf (B, 130 m, https://directindex.org/r/duesselzahn.de); ANAMETRICS Physiotherapie Düsseldorf-Unterbilk (C, 135 m, https://directindex.org/r/anametrics.de); Lippal Fischer Janina Dr med (F, 140 m, https://directindex.org/r/lippal-fischer.de); Hausarzt Düsseldorf I Dr. Cemal Selcan I Allgemeinmedizin I türk doktor (C, 143 m, https://directindex.org/r/praxis-selcan.de); Herr Dr. Med. Anh Khoa Nguyen (C, 145 m, https://directindex.org/r/praxisflorastrasse.com); Dr. med. Markus Mann (C, 146 m, https://directindex.org/r/chirurgie-drmann.de); Zahnärztlicher Notdienst (D, 151 m, https://directindex.org/r/zzn-duesseldorf.de); Thomas Roßbach (F, 153 m, https://directindex.org/r/frauenarzt-rossbach.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 57% (28% A or B, 145483 sites); This site 50.8%. See what an AI agent reads on this site: https://directindex.org/r/rhio.de/agent-view Read by AI agents 9 times this month (ClaudeBot 9). ## Businesses like Dr. med. Hans-Eckhard Langer 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% | 50.8% | | Sites built with WordPress in Düsseldorf dentists, clinics and vets | 688 | 55% | 17% | 50.8% | 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 three fixes above (No online booking link on the website; Structured data is incomplete; 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. med. Hans-Eckhard Langer, as JSON: https://directindex.org/api/direct/rhio.de - Book: none on record - Order: none on record - Menu: none on record - Hours: none on record - Phone: +49 211 520666 ## 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 (controls without a destination: termin). ## Score breakdown | Component | Points | Available | |---|---|---| | Reachable | 25 | 25 | | Readable | 8 | 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/rhio.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/rhio.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/rhio.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=rhio.de&force=1