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

Gemeinschaftspraxis Jarkowski and Brethauer

zahn-jb.de is largely invisible to agents.

Listed by Overture Maps.

BookCallWebsite

Ways to reach Gemeinschaftspraxis Jarkowski and Brethauer directly, with no marketplace in between. Checked 2026-10-20. On the business's own site. Report a mistake

Schönhauser Str. 57, 50968, Köln · 0221383141

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Nearby, also direct

Places near Gemeinschaftspraxis Jarkowski and Brethauer 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 Gemeinschaftspraxis Jarkowski and Brethauer's website, so they go by what other sites say about it.

24.6%

16 of 65 points available

–

agent-readiness level

3

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. Gemeinschaftspraxis Jarkowski and Brethauer wasn't one of them. See who was named →

Where it stands

How Gemeinschaftspraxis Jarkowski and Brethauer compares

Where it stands

2,196 of 2,402 in Cologne dentists, clinics and vets

Top 91% of the sites scanned in this index. Just above: Tanja Reichert F, Dr. Margit Oepen Gynakologische Privatpraxis F. Just below: Hausärztliche Gemeinschaftsprax Kirmizigul F, MVZ Zahnärzte am Werk F.

What the top 10% of the index doesTop 10%This site
Take bookings or orders on their own domain98%yes
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
Dr. Med. Peter Pelka11 mFno
Parodontologie99 mCno
Praxis Giesen131 mByes
Praxis Nikola Schütte132 mFyes
Die Bayenthaler Kinderärzte Dr. Med. Tjalda Iliaev & Dr. Med. Vladimir Iliaev133 mDno
Beyondeye - Praxis Doctor-medic Roxana Fulga133 mCyes
Zahnfreude Kieferorthopädie133 mCno
MVZ für Hals- Nasen- und Ohrenheilkunde Köln-Süd139 mByes
Gemeinschaftspraxis für HNO-Heilkunde Dr. Imma Schneider und Polina Samusenko157 mCyes
Herr Edgar Mellenthin163 mDno
Businesses like yours

Businesses like Gemeinschaftspraxis Jarkowski and Brethauer in Cologne dentists, clinics and vets

GroupSitesAvg scoreA or BThis site
Businesses of the same kind in Cologne dentists, clinics and vets2,40247%9%24.6%

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 list of services and prices found), the score would be about 95.4%, which would be first of 2,402 in Cologne dentists, clinics and vets.

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 +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. How to fix it

  3. 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.
  • Appointments on your own site Agents can book an appointment without going through a marketplace.

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": "Gemeinschaftspraxis Jarkowski and Brethauer",
  "url": "https://www.zahn-jb.de/",
  "telephone": "0221383141",
  "address": "Schönhauser Str. 57, 50968, Köln",
  "geo": {
    "@type": "GeoCoordinates",
    "latitude": 50.91107814,
    "longitude": 6.96374256
  },
  "potentialAction": [
    {
      "@type": "ReserveAction",
      "target": {
        "@type": "EntryPoint",
        "urlTemplate": "https://www.zahn-jb.de/online-terminbuchung.html",
        "actionPlatform": [
          "http://schema.org/DesktopWebPlatform",
          "http://schema.org/MobileWebPlatform"
        ]
      },
      "result": {
        "@type": "Reservation",
        "name": "Reservation"
      }
    }
  ]
}
</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/zahn-jb.de"><img src="https://directindex.org/badge/zahn-jb.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 Gemeinschaftspraxis Jarkowski and Brethauer

The links an assistant is sent when it books, orders or reads the menu for this business, where each leads, and when a browser last checked it. The same record is served as JSON at /api/direct/zahn-jb.de, through the MCP tool direct_record and in the city feed /city/cologne-clinics/direct.json.

PathLinkStatus
Bookwww.zahn-jb.de/online-terminbuchung.html own sitefound by the scan of 2026-10-20, not yet tested
Ordernone on record
Menunone on record
Hoursnone on record
Phone0221383141

Stable links that count: /go/zahn-jb.de/book answer 302 to the links above; the count is the line "followed N direct links" on this page.

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