The Direct Index
Report · Cologne dentists, clinics and vets · scanned 2026-10-20

Dr. med. Robert Siebel

dr-robert-siebel.de is largely invisible to agents.

Listed by Overture Maps.

CallWebsite

Ways to reach Dr. med. Robert Siebel directly, with no marketplace in between. Checked 2026-10-20. Report a mistake

Kaiser-Wilhelm-Ring 24, 50672, Köln · +492211392040

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Nearby, also direct

Places near Dr. med. Robert Siebel that take a booking or an order on their own website, with no marketplace in between.

Owners

The website's grade

AI assistants can't open Dr. med. Robert Siebel's website, so they go by what other sites say about it.

0%

0 of 65 points available

–

agent-readiness level

4

things to fix

Provisional, with the action test and the assistant citation check still to come. The hatched part of the bar isn't measured yet.

See what an AI agent reads on this site →

What the site tells visitors Measured, not scored

These don't change the grade.

No English version declared.

Visitors from abroad, and assistants answering in English, read the page as it is. In Cologne, 5.5% of comparable sites declare one.

Every city compared →
Assistants

What assistants answer

Each assistant gets three questions about this business: the official website, where to book and where to order. Each cell shows where the answer sent people.

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.

The assistants were asked 12 everyday questions about Cologne dentists, clinics and vets and named 58 places. Dr. med. Robert Siebel wasn't one of them. See who was named →

Where it stands

How Dr. med. Robert Siebel compares

Where it stands

2,316 of 2,402 in Cologne dentists, clinics and vets

Top 96% of the sites scanned in this index. Just above: Dr. Moschinski und Laaser F, Dr. Oliver Kämmerer F. Just below: Dr. med. Yusuf Günes F, Dr. med. dent. Corina Krawinkel Zahnärztin F.

What the top 10% of the index doesTop 10%This site
Take bookings or orders on their own domain98%no
Publish the menu or price list as HTML4%no
Let AI crawlers in (no block at the server or in robots.txt)88%no
Structured data with address, phone and hours19%no
Have an llms.txt27%no

The top 10% are the 251 highest-scoring reachable sites in the index at the last update.

Nearest places in the index

PlaceDistanceGradeDirect booking or ordering
Tim Becker Physiotherapie23 mCyes
Barbara Faber - Physiotherapie & Osteopathie65 mDyes
Dr. med. Ralf Hinrichs | Facharzt für Dermatologie und Venerologie Köln86 mCno
Beate Jedeck88 mCno
Urologie Am Ring89 mByes
Horbach Gerd Dr. med. Frauenarzt95 mFno
Dr. Simone Hellmann, Fachärztin für Ästhetische und Plastische Chirurgie96 mDyes
Amedi-köln Gmbh97 mDyes
Kernspin Zentrum KÖLn97 mCyes
Praenatal Plus109 mCyes
Businesses like yours

Businesses like Dr. med. Robert Siebel in Cologne dentists, clinics and vets

GroupSitesAvg scoreA or BThis site
Businesses of the same kind in Cologne dentists, clinics and vets2,40247%9%0%

The best of the businesses of the same kind in Cologne dentists, clinics and vets

arthroprax Orthopädie Unfallchirurgie A 95.4% · Isabelle Schemien, Privatpraxis für Physiotherapie A 90.8% · Kassenzahnärztliche Bundesvereinigung Kdör - Institut Der Deutschen Zahnärzte A 90.8% · Neurochirurgie-hristov A 86.2% · mamonova A 86.2%

After the top fixes

With the three fixes above (The site turns away every visitor that isn't a browser, AI agents included; No structured data for the business; No online booking link on the website), the score would be about 84.6%. That would be 6th of 2,402 in Cologne dentists, clinics and vets, up from 2316th.

Peers are the businesses in the same index that have a reachable site, using the latest scan of each. The rank comes from the index's current ranking.

Findings

What to fix first

  1. The site turns away every visitor that isn't a browser, AI agents included +25 points

    A plain fetch was refused (http_503). Only a real browser got the page. Every AI crawler and agent gets turned away the same way, so Reachable scores 0 and the rest is measured on the page as the browser rendered it. Ask the host to let the AI user agents through. How to fix it

  2. No structured data for the business +15 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. How to fix it

  3. 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. How to fix it

  4. 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. How to fix it

Send the fixes to your web person

One email with the fixes and the link. Nothing is stored.

No one is listed yet to fix this in Cologne dentists, clinics and vets. List your agency or yourself. It's free, and every listing is reviewed by hand.

Already right

  • robots.txt lets AI crawlers in No rule blocks the main AI user agents.

Builder: unknown · Front: cloudflare · A plain fetch got http_503; a real browser got the page, so the scan continues on the rendered page.

Fix kit

What to paste

Filled in from the business's own record and this scan. Check every line before it goes live. The guides show where it goes on your builder.

Show the code 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. Guide.

<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "LocalBusiness",
  "name": "Dr. med. Robert Siebel",
  "url": "http://www.dr-robert-siebel.de/",
  "telephone": "+492211392040",
  "address": "Kaiser-Wilhelm-Ring 24, 50672, Köln",
  "geo": {
    "@type": "GeoCoordinates",
    "latitude": 50.9436775,
    "longitude": 6.94153342
  }
}
</script>
Owners

Own this business?

If you fixed something or think a check is wrong, rescan. Rescans are free. Claiming takes one email to confirm. After that, the three assistants are asked about the business right away and the site is rescanned every week. You get a message only when the score changes.

Rescan now · Markdown · Dispute a check

Keep watching this business: the assistants are asked again every month, and you see what changed. 2 EUR a month or 19 EUR a year. Deep report: ten questions to each assistant, plus the places nearby. 5 EUR, paid once. Reading and scanning stay free. These few euros pay for the questions sent to the assistants and for the servers.

Show the score

Owners who score well put the badge on their site. It links back here and updates with every scan.

Agent-Direct Score F

<a href="https://directindex.org/r/dr-robert-siebel.de"><img src="https://directindex.org/badge/dr-robert-siebel.de.svg" alt="Agent-Direct Score F" width="236" height="40"></a>
For developers and agents

What agents get, and what the site publishes

The direct record agents get for this business, the rails an agent could transact through, and the agent standards the site publishes.

Show the details
The direct record

What agents get for Dr. med. Robert Siebel

No direct path on record: the scan of 2026-10-20 found no booking or ordering link on dr-robert-siebel.de or on a vendor's site. The same record is served as JSON at /api/direct/dr-robert-siebel.de, through the MCP tool direct_record and in the city feed /city/cologne-clinics/direct.json.

PathLinkStatus
Booknone on record
Ordernone on record
Menunone on record
Hoursnone on record
Phone+492211392040

Owners: claim the business below to correct this record; the claim email carries the link.

Transactable

Can an agent transact?

Measured, not scored: the Agent-Direct Score stays at specification v1.0. This says which rails an agent could transact through today, and what the booking or ordering vendor's terms allow.

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

Only a real browser got this page (a plain fetch got http_503); Readable and Actionable were measured on the rendered page.

Agent readiness

Not measured

These are the standards an agent looks for before it reads a page, checked the same way as Cloudflare's Agent Readiness scan. They don't count toward the score. Each missing item links to a how-to. Cloudflare's report.

JSON-LD for the businessno