# Zirbelstube: Agent-Direct Score D (43.1%) Site: https://www.colombi.de/ Report: https://directindex.org/r/colombi.de Scanned: 2026-10-24 (Provisional, with the action test and the assistant citation check still to come. The hatched part of the bar isn't measured yet.) Zirbelstube is hard for agents to use. An AI assistant can open Zirbelstube's website. It can't find a menu or price list, so it answers from other sites. It finds a phone number, but no link to book or order online. ## Direct links - Phone: +49 761 21060 - Hours, from OpenStreetMap: Mon–Sun 12:00–15:00, 19:00–00:00 - Prices: 7 prices on the site, the middle one €350 - Languages: German, English ## Nearby, also direct Places near Zirbelstube that take a booking or an order on their own website, with no marketplace in between. - La Piazza (80 m): https://directindex.org/r/lapiazza-freiburg.de - Nordsee (100 m): https://directindex.org/r/nordsee.com - Rathauskantine (100 m): https://directindex.org/r/freiburg.de - Tom's (150 m): https://directindex.org/r/toms-freiburg.de ## What to fix first - **No structured data for the business.** (+14 points) Add schema.org JSON-LD for the business (Restaurant, LocalBusiness or the closest type, with name, address, telephone and openingHoursSpecification, plus servesCuisine and acceptsReservations). Every assistant reads this block first, and the fix kit below has it filled in. Guide: https://directindex.org/guides/structured-data-restaurant - **No booking or ordering link on the website.** (+13 points) There's only a phone number or WhatsApp, and agents can't use those yet. If you take bookings or orders through a platform, link to it from the site so agents can find it. Add a booking or ordering page. Guide: https://directindex.org/guides/book-direct-on-your-own-website - **No menu or price list found.** (+7 points) Agents answer 'what do they offer?' from marketplaces instead. Add a page with the menu or price list 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) - **7 prices on the landing page, the middle one €350.** ## 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. ``` # Zirbelstube > restaurant in Freiburg. Phone +49 761 21060. ## Opening hours 12:00-15:00,19:00-24:00 ## About - Website: https://www.colombi.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. ## Where it stands 192 of 239 in Freiburg. Top 80% 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 | 100% | no | | Publish the menu or price list as HTML | 92% | no | | Let AI crawlers in (no block at the server or in robots.txt) | 85% | yes | | Structured data with address, phone and hours | 54% | no | | Have an llms.txt | 27% | no | Nearest places in the index: Tizio Caffé (D, 56 m, https://directindex.org/r/tizio-freiburg.de); La Piazza (C, 78 m, https://directindex.org/r/lapiazza-freiburg.de); Sutogo (D, 80 m, https://directindex.org/r/sutogo.de); Nordsee (B, 96 m, https://directindex.org/r/nordsee.com); Rathauskantine (A, 96 m, https://directindex.org/r/freiburg.de); Safaran (F, 127 m, https://directindex.org/r/safaran-freiburg.de); Breisgauer Flammkuchen (C, 147 m, https://directindex.org/r/breisgauer-flammkuchen.de); holgers (F, 153 m, https://directindex.org/r/holgers.bio); Tom's (C, 153 m, https://directindex.org/r/toms-freiburg.de); Mr Fero (D, 156 m, https://directindex.org/r/mrfero-freiburg.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. Recommended when people ask: "I want to book a table for two tonight somewhere romantic." (Gemini); "A special tasting menu for our anniversary next month. Book us in." (ChatGPT, Gemini, Claude); "A quiet place for a business lunch on Tuesday, book for three at noon." (ChatGPT) See what an AI agent reads on this site: https://directindex.org/r/colombi.de/agent-view ## Named by ChatGPT and Gemini for 3 questions, including "I want to book a table for two tonight somewhere romantic" in Freiburg, October 2026 - "I want to book a table for two tonight somewhere romantic." (2026-10-19): Gemini with a link to this site. https://directindex.org/city/freiburg/recommended/romantic - "A special tasting menu for our anniversary next month. Book us in." (2026-10-19): ChatGPT with a link to this site; Gemini with a link to this site. https://directindex.org/city/freiburg/recommended/fine-dining - "A quiet place for a business lunch on Tuesday, book for three at noon." (2026-10-19): ChatGPT with a link to this site. https://directindex.org/city/freiburg/recommended/business-lunch Named by 2 of 3 assistants asked. Badge: https://directindex.org/badge/named/colombi.de.svg ## Businesses like Zirbelstube in Freiburg | Group | Sites | Avg score | A or B | This site | |---|---|---|---|---| | Businesses of the same kind in Freiburg | 239 | 58% | 32% | 43.1% | The best of the businesses of the same kind in Freiburg: Barroq (A 100%, https://directindex.org/r/barroq.de); Cum Laude (A 100%, https://directindex.org/r/cumlaude-freiburg.de); Das Blümchen (A 100%, https://directindex.org/r/bluemchen.restaurant); Erbil (A 100%, https://directindex.org/r/erbil-freiburg.de); Kartoffelhaus (A 100%, https://directindex.org/r/daskartoffelhaus.de). With the three fixes above (No structured data for the business; No booking or ordering link on the website; No menu or price list found), the score would be about 95.4%. That would be 6th of 239 in Freiburg, up from 192nd. ## The direct record What agents get for Zirbelstube, as JSON: https://directindex.org/api/direct/colombi.de - Book: none on record - Order: none on record - Menu: none on record - Hours: 12:00-15:00,19:00-24:00 (closed now) (from OpenStreetMap) - Phone: +49 761 21060 ## 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 ## Score breakdown | Component | Points | Available | |---|---|---| | Reachable | 25 | 25 | | Readable | 1 | 25 | | Actionable | 2 | 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/colombi.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: no Keep watching this business (https://directindex.org/r/colombi.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/colombi.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=colombi.de&force=1