Agent-Readiness Grade

Agent-Readiness Grade / rule34.dev

C

rule34.dev

8/12 · 67% (scaled from 5 measurable areas)

Graded 2026-10-09 18:56 UTC in 0.6s · 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. 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.

rule34.dev is graded C. The $49 AI Visibility Full Report turns the failing check above (machine-readable surfaces) into a prioritized, specific fix list for rule34.dev, 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)

2/2 · pass

8 of 8 AI crawlers may read the site, 0 disallowed

  • GET /robots.txt -> HTTP 200, 121 B, 1 user-agent group
  • Allowed: GPTBot (via *), ClaudeBot (via *), OAI-SearchBot (via *), PerplexityBot (via *), Google-Extended (via *), Amazonbot (via *), CCBot (via *), Bytespider (via *)
  • Sitemap declared: https://app.rule34.dev/sitemap.xml, https://app.rule34.dev/sitemap-recovery.xml

Fix: Nothing to fix here.

Machine-readable surfaces

1/2 · warn

1 of 7 surfaces present (/sitemap.xml)

  • /llms.txt: HTTP 404
  • /sitemap.xml: HTTP 200, XML sitemap (>64 KB)
  • /.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

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://rule34.dev/ -> HTTP 200 after 1 redirect (final: https://app.rule34.dev/), text/html, 160 KB
  • 1,957 characters of visible text with scripts, styles and tags removed; <title>: "Rule34.dev — boorus, manga, and streaming in one place"
  • 16 external scripts, 5 inline; <noscript> present
  • first words: "Porn videos Hentai videos Newgrounds Manga Kemono 4Chan Games Erome RedGifs Reddit rule34 .dev RULE34 .DEV Trending Best Characters Tags Cha..."

Fix: Nothing to fix here.

Structured data

2/2 · pass

1 JSON-LD block, Open Graph complete

  • 1 JSON-LD block: @type WebSite
  • Open Graph: og:title "Rule34 Dev — Hentai & Anime Gallery"; 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.

Share this result

Permanent link; it re-grades the site live when opened:

https://grade.agentexchange.work/grade?url=rule34.dev

Public profile with grade history and an embeddable badge: https://grade.agentexchange.work/site/rule34.dev (badge: https://grade.agentexchange.work/badge/rule34.dev.svg).

$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 rule34.dev. 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).

Grade another site