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Kayakkayak.com

72/ 100 · Agentic Usability Score
SelectiveScanned 2026-09-22 · local-node · method v0.1Edge: KAYAK/1.0
Muse
Meta
?Untested
ChatGPT Agent
OpenAI
Partial
Claude
Anthropic
Allowed
Comet
Perplexity
Allowed
Grok Bot
xAI
Not disallowed
Gemini
Google
Allowed
Manus
Manus
Not disallowed
Instinct
Spear Street
?Untested

Score breakdown

Five pillars. Task completion is pending until the live task runner ships; the other four are rescaled to 100.
Accessrobots.txt stance + live door test
40/40
Consent & identity pathContent-Signal, published agent policy
0/10
Machine-readable surfacellms.txt, JSON-LD, landmarks, SSR
25/25
Agent protocolsUCP, MCP, A2A, OpenAPI
0/15
Task completionlive agent run: search → cart → checkout
pending

Evidence

Generated by the scanner from this run. Every line is reproducible with the open-source probe.
  • Homepage serves a normal page to ChatGPT-User, Claude-User, Perplexity-User and GoogleAgent-Mariner
  • robots.txt has no rule against any user-directed agent we test
  • robots.txt restricts some paths for ChatGPT-User
  • No Content-Signal in robots.txt
  • Publishes llms.txt
  • Homepage carries 3 JSON-LD blocks
  • Semantic landmarks present (main, nav)
  • No agent-protocol manifest (UCP, MCP, A2A, OpenAPI)
Identified asHTTPResult
ChatGPT-User200normal page
Claude-User200normal page
Perplexity-User200normal page
GoogleAgent-Mariner200normal page
browser (human)200normal page

What Kayak would need to change

1Give agents a front doorProtocols · up to 12 pts

A Universal Commerce Protocol manifest for shopping, or an MCP server card for everything else. An agent that can call an API never needs to hold a customer's password.

GET /.well-known/ucp
{ "ucp": { "version": "2026-01-23",
  "services": { "dev.ucp.shopping": [{ "transport": "rest", "endpoint": "https://www.kayak.com/api/ucp/v1" }] },
  "capabilities": { "dev.ucp.shopping.checkout": [ … ] } } }

# or
GET /.well-known/mcp.json
{ "name": "Kayak", "endpoint": "https://www.kayak.com/mcp", "transport": "streamable-http" }

2Say your stance with a Content-SignalConsent · up to 3 pts

Two lines in robots.txt end the guessing game. ai-input covers agents reading pages on a person's behalf.

User-Agent: *
Content-Signal: search=yes, ai-input=yes, ai-train=no
Allow: /