Agent-Readiness Grade

Agent-Readiness Grade / iflscience.com

C

iflscience.com

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

Graded 2026-10-09 17:15 UTC in 0.4s · JSON · re-grade now

Top fixes

  1. MCP census entry (+2 points): Expose a Streamable HTTP MCP endpoint at /mcp (or a paid x402 route) so agents can call you, not just read you. How to fix
  2. Crawler access (+1 point): Add a group for CCBot, Bytespider with "Allow: /" (or drop the blanket "Disallow: /") if you want answer engines to cite you. How to fix
  3. 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

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

iflscience.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 iflscience.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)

1/2 · warn

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

  • GET /robots.txt -> HTTP 200, 790 B, 11 user-agent groups
  • Allowed: GPTBot (via *) (2 path rules), ClaudeBot (via *) (2 path rules), OAI-SearchBot (via *) (2 path rules), PerplexityBot (via *) (2 path rules), Google-Extended (via *) (2 path rules), Amazonbot (via *) (2 path rules)
  • Disallowed: CCBot, Bytespider
  • Sitemap declared: https://www.iflscience.com/sitemaps/sitemap.xml, https://www.iflscience.com/sitemaps/sitemap-news-1.xml

Fix: Add a group for CCBot, Bytespider with "Allow: /" (or drop the blanket "Disallow: /") if you want answer engines to cite you.

Machine-readable surfaces

1/2 · warn

None of the 7 machine-readable surfaces is published (a sitemap is declared in robots.txt)

  • /llms.txt: HTTP 404
  • /sitemap.xml: HTTP 404
  • /.well-known/x402: HTTP 404
  • /.well-known/agent-card.json: HTTP 404
  • /.well-known/mcp-registry-auth: HTTP 404
  • /openapi.json: HTTP 404
  • /ai.txt: HTTP 404
  • Sitemap declared in robots.txt instead: https://www.iflscience.com/sitemaps/sitemap.xml

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://iflscience.com/ -> HTTP 200 after 1 redirect (final: https://www.iflscience.com/), text/html, 165 KB
  • 13,415 characters of visible text with scripts, styles and tags removed; <title>: "The Lighter Side of Science | IFLScience"
  • 10 external scripts, 15 inline; <noscript> present
  • first words: "Skip to main content CLOSE Thank you! We have emailed you a PDF version of the article you requested. Can't find the email? Please check you..."

Fix: Nothing to fix here.

Structured data

2/2 · pass

1 JSON-LD block, Open Graph complete

  • 1 JSON-LD block: @type NewsMediaOrganization
  • Open Graph: og:title "The Lighter Side of Science | IFLScience"; og:description present
  • meta description: present

Fix: Nothing to fix here.

MCP census entry (index.agentexchange.work)

0/2 · fail

Not selling to agents: no census entry, no /mcp endpoint

  • 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 404: no MCP endpoint at the root

Fix: Expose a Streamable HTTP MCP endpoint at /mcp (or a paid x402 route) so agents can call you, not just read 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 iflscience.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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