As of May 18, 2026, AI agents read slack.com at Good readiness (64/100). ChatGPT, Claude, and Gemini mention this site in their recommendations (AI Visibility 62/100).
Agent Readiness
Discoverability
80/100Can AI crawlers find your content and understand your policies?
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robots.txt presentHTTP 200
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sitemap.xml presentHTTP 200
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Sitemap declared in robots.txt
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AI bot rules in robots.txtNo explicit rules for GPTBot / ClaudeBot / Google-Extended
How to fix
Add `User-agent: GPTBot`, `User-agent: ClaudeBot`, `User-agent: Google-Extended` blocks with explicit Allow/Disallow so AI crawlers know your stance.
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Content Signals declaredNo Cloudflare Content-Signal directive
How to fix
Add `Content-Signal: search=yes, ai-train=no, ai-input=yes` (tune the values to your policy) inside a User-agent group in robots.txt.
Agent Endpoints
25/100Standard well-known endpoints agents probe to interact with your site.
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MCP server card (/.well-known/mcp/server-card.json)Publish an MCP server card to expose agent tools
How to fix
Publish an MCP server-card JSON at /.well-known/mcp/server-card.json describing your tools, transport, and capabilities. Spec: SEP-1649/SEP-2127.
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API catalog (/.well-known/api-catalog)RFC 9727 API catalog helps agents discover your APIs
How to fix
Serve a `application/linkset+json` document at /.well-known/api-catalog listing your OpenAPI / service descriptions. RFC 9727.
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OAuth protected resource (/.well-known/oauth-protected-resource)RFC 9728 lets agents discover auth requirements
How to fix
Publish a JSON document at /.well-known/oauth-protected-resource with `resource` and `authorization_servers` fields. RFC 9728.
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OpenID configuration (/.well-known/openid-configuration)HTTP 200
Content Negotiation
67/100How well your site speaks formats AI agents prefer.
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llms.txt presentHTTP 200
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Markdown content negotiationReturned text/html; charset=utf-8 despite Accept: text/markdown
How to fix
When `Accept: text/markdown` is sent, return the same content as Markdown (Content-Type: text/markdown). Agents prefer it because it's cheaper to parse than HTML.
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Link header on /No Link header — agents can't follow alt-format relations
How to fix
Add an HTTP `Link:` header pointing agents at alternate representations, e.g. `Link: </openapi.json>; rel="service-desc"; type="application/openapi+json"`.
Search Optimization
85/100HTML signals that Google AI Search + LLM crawlers use to rank you.
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Homepage reachableHTTP 200
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HTTPS
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Title tagSlack | AI Work Platform & Productivity ToolsClose NavigationClose Navigation
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Meta descriptionBoost productivity and save time with Slack — the AI work platform for managing projects…
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Canonical URL
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Open Graph tagstitle, description, image
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Schema.org structured dataAdd JSON-LD (Organization, Product, FAQPage…)
How to fix
Embed a `<script type="application/ld+json">` block with an Organization, Product, FAQPage, or HowTo schema. Validate with schema.org/validator.
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Mobile viewport
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html lang attribute
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Image alt text54/79 images have alt
How to fix
Add descriptive `alt` text to every `<img>` (use `alt=""` for purely decorative images). Improves accessibility AND AI/SEO ranking.
Auth Standards optional
0/100Optional: cryptographic verification for trusted bots.
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Web Bot Auth directoryPublish /.well-known/http-message-signatures-directory to verify trusted bots
How to fix
If you operate a bot, publish your signing keys at /.well-known/http-message-signatures-directory per draft-meunier-web-bot-auth-architecture. Most non-bot sites can leave this missing.
AI Visibility
History
| Date | Readiness | Visibility |
|---|---|---|
| May 18, 2026 | 64 | 62 |
| Apr 18, 2026 | 64 | 62 |
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