Agent-Readiness Grade

Agent-Readiness Grade / mcmaster.com

C

mcmaster.com

7/12 · 58% (scaled from 5 measurable areas)

Graded 2026-10-11 14:49 UTC in 0.3s · JSON · re-grade now

Top fixes

  1. Crawler access (+2 points): Add a group for GPTBot, ClaudeBot, Google-Extended and the others with "Allow: /" (or drop the blanket "Disallow: /") if you want answer engines to cite you. How to fix
  2. Machine-readable surfaces (+1 point): Publish /llms.txt (a short Markdown guide to your key pages); one agent surface: /openapi.json, /.well-known/agent-card.json, or /.well-known/x402 if you sell to agents. How to fix
  3. MCP census entry (+1 point): Publish /.well-known/x402 with your paid routes so payment indexers can list you. How to fix

Ordered by points recoverable. Each area: 2/2 pass, 1/2 warn, 0/2 fail.

mcmaster.com is graded C. The $49 AI Visibility Full Report turns the 2 failing checks above (crawler access, machine-readable surfaces) into a prioritized, specific fix list for mcmaster.com, and tests 8 real buyer questions across ChatGPT-class models to show what AI answers say about you today.

Get the full report — $49 Stripe checkout asks for your brand name and category; the report is ready about 60 seconds after payment. Legal notices and the MCP census entry are not in this report (free: Compliance Desk check, census claim).

Crawler access (robots.txt)

0/2 · fail

2 of 8 AI crawlers may read the site, 6 disallowed

  • GET /robots.txt -> HTTP 200, 1.4 KB, 3 user-agent groups
  • Allowed: OAI-SearchBot (via *) (25 path rules), PerplexityBot (via *) (25 path rules)
  • Disallowed: GPTBot, ClaudeBot, Google-Extended, Amazonbot, CCBot, Bytespider
  • Sitemap declared: https://www.mcmaster.com/prerenderstable/sitemapindex.xml

Fix: Add a group for GPTBot, ClaudeBot, Google-Extended and the others with "Allow: /" (or drop the blanket "Disallow: /") if you want answer engines to cite you.

Machine-readable surfaces

1/2 · warn

1 of 7 surfaces present (/sitemap.xml)

  • /llms.txt: HTTP 410
  • /sitemap.xml: HTTP 200, XML sitemap (>64 KB)
  • /.well-known/x402: HTTP 410
  • /.well-known/agent-card.json: HTTP 410
  • /.well-known/mcp-registry-auth: HTTP 410
  • /openapi.json: HTTP 410
  • /ai.txt: HTTP 410

Fix: Publish /llms.txt (a short Markdown guide to your key pages); one agent surface: /openapi.json, /.well-known/agent-card.json, or /.well-known/x402 if you sell to agents.

Readable without JavaScript

2/2 · pass

Home page is readable

  • GET https://mcmaster.com/ -> HTTP 200 after 1 redirect (final: https://www.mcmaster.com/), text/html, 187 KB
  • 12,751 characters of visible text with scripts, styles and tags removed; <title>: "McMaster-Carr"
  • 0 external scripts, 0 inline; <noscript> absent
  • first words: "BROWSE CATALOG Abrading & Polishing Building & Grounds Electrical & Lighting Fabricating Fastening & Joining Filtering Flow & Level Control ..."

Fix: Nothing to fix here.

Structured data

2/2 · pass

1 JSON-LD block, Open Graph complete

  • 1 JSON-LD block: @type OnlineStore, WebSite
  • Open Graph: og:title "McMaster-Carr"; og:description present
  • meta description: present

Fix: Nothing to fix here.

MCP census entry (index.agentexchange.work)

1/2 · warn

Exposes /mcp but is not in the census

  • census unavailable (refused index.agentexchange.work: hosts on agentexchange.work cannot be graded from inside the same Cloudflare zone; every check would time )
  • GET /mcp -> HTTP 200: an endpoint answers
  • Index MCP probe record: refused index.agentexchange.work: hosts on agentexchange.work cannot be graded from inside the same Cloudflare zone; every check would time

Fix: Publish /.well-known/x402 with your paid routes so payment indexers can list you.

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$49 AI Visibility Full Report

This grade is free and automated. The paid next step is the $49 AI Visibility Full Report (which brands a representative AI model, standing in for ChatGPT-class assistants, names when buyers ask about your category, with a prioritized fix list) from aivisibility.agentexchange.work, run for mcmaster.com. It includes:

Get the Full Report — $49 Stripe checkout asks for your brand name and category; the report is ready about 60 seconds after payment. Legal notices and the MCP census entry are not in this report (free: Compliance Desk check, census claim).

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