# Café de l'Arsenic: Agent-Direct Score C (58.8%) Site: https://arsenic.ch/cafe-restaurant/ Report: https://directindex.org/r/arsenic.ch Scanned: 2026-10-16 (Provisional, with the assistant citation check still to come. The hatched part of the bar isn't measured yet.) Café de l'Arsenic is partly visible to agents. An AI assistant can open Café de l'Arsenic's website. It can't find a menu or price list, so it answers from other sites. It finds a way to book or order directly on the site. ## Direct links - Book directly: https://arsenic.ch/billetterie/ (on the business's own site) - Phone: +41 21 625 11 43 - Languages: English, French ## Nearby, also direct Places near Café de l'Arsenic that take a booking or an order on their own website, with no marketplace in between. - Base Bar (190 m): https://directindex.org/r/basebarlausanne.ch - Movida (340 m): https://directindex.org/r/pocoloco-movida.ch - Bulldog Bar & Resto (410 m): https://directindex.org/r/bulldogbar.ch - King Size pub (420 m): https://directindex.org/r/kingsizepub.ch ## What to fix first - **No structured data for the business.** (+15 points) Add schema.org JSON-LD for the business (CafeOrCoffeeShop, BarOrPub or the closest type, with name, address, telephone and openingHoursSpecification, plus servesCuisine). Every assistant reads this block first, and the fix kit below has it filled in. Guide: https://directindex.org/guides/structured-data-restaurant - **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 ## 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. ``` # Café de l'Arsenic > cafe or coffee shop in Lausanne cafes and bars. Phone +41 21 625 11 43. ## Book or order directly - Book: https://arsenic.ch/billetterie/ (on the business's own site) ## About - Website: https://arsenic.ch/cafe-restaurant/ - 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. - **Booking on your own site.** Agents can book without going through a marketplace. ## Where it stands 49 of 133 in Lausanne cafes and bars. Top 37% 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% | yes | | Publish the menu or price list as HTML | 86% | no | | Let AI crawlers in (no block at the server or in robots.txt) | 100% | yes | | Structured data with address, phone and hours | 21% | no | | Have an llms.txt | 36% | no | Nearest places in the index: Base Bar (B, 188 m, https://directindex.org/r/basebarlausanne.ch); GT's (D, 192 m, https://directindex.org/r/opera5.ch); Quai 14 (D, 326 m, https://directindex.org/r/quai14.ch); Movida (C, 341 m, https://directindex.org/r/pocoloco-movida.ch); Jazz Corner (B, 361 m, https://directindex.org/r/jazz-corner.com); La Datcha (F, 373 m, https://directindex.org/r/la-datcha.ch); Bulldog Bar & Resto (B, 409 m, https://directindex.org/r/bulldogbar.ch); King Size pub (D, 420 m, https://directindex.org/r/kingsizepub.ch); Xpresso Cafe (D, 425 m, https://directindex.org/r/villarsholding.ch); Artishow - Bar / Café / Fleuriste (F, 470 m, https://directindex.org/r/artishow.ch). ## 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 55% (25% A or B, 236087 sites); This site 58.8%. See what an AI agent reads on this site: https://directindex.org/r/arsenic.ch/agent-view ## Businesses like Café de l'Arsenic in Lausanne cafes and bars | Group | Sites | Avg score | A or B | This site | |---|---|---|---|---| | Businesses of the same kind in Lausanne cafes and bars | 133 | 51% | 23% | 58.8% | | Sites built with WordPress in Lausanne cafes and bars | 55 | 60% | 29% | 58.8% | The best of the sites built with WordPress in Lausanne cafes and bars: Street Cellar (A 95.4%, https://directindex.org/r/streetcellar.ch); Coccinelle Café (B 83.8%, https://directindex.org/r/coccinelle-cafe.ch); ABC Club (B 78.8%, https://directindex.org/r/dclub.ch); Base Bar (B 78.8%, https://directindex.org/r/basebarlausanne.ch); Bluebird Café (B 78.8%, https://directindex.org/r/bluebirdcafe.ch). With the two fixes above (No structured data for the business; No menu or price list found), the score would be about 86.3%. That would be 7th of 133 in Lausanne cafes and bars, up from 49th. ## The direct record What agents get for Café de l'Arsenic, as JSON: https://directindex.org/api/direct/arsenic.ch - Book: https://arsenic.ch/billetterie/ (own site; could not verify: partial (2026-10-19)) - Order: none on record - Menu: none on record - Hours: none on record - Phone: +41 21 625 11 43 - Stable links that count: https://directindex.org/go/arsenic.ch/book ## 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 | 0 | 25 | | Actionable | 22 | 30 | | Cited | 0 | 0 (the assistant citation check: pending) | ## Agent readiness (Cloudflare) Level 1 of 5, Basic Web Presence. Cloudflare's report: https://isitagentready.com/arsenic.ch - 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: no (how: https://isitagentready.com/.well-known/agent-skills/ai-rules/SKILL.md) - 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/arsenic.ch/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/arsenic.ch/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=arsenic.ch&force=1