# Code4X — Markdown Sitemap

> Spec-compliant markdown sitemap for LLM crawlers, AI search engines, and citation assistants.

- **Domain**: https://code4x.dev
- **Updated**: 2026-09-29
- **XML Sitemap**: https://code4x.dev/sitemap.xml
- **Protocol**: HTTP/1.1 & HTTP/2 TLSv1.3

## Core Platform
- [Homepage](https://code4x.dev/): Is your website ready for AI agents? Interactive 55-check health audit.
- [Free Scan](https://code4x.dev/scan): Run 8 deterministic checks against any domain in 15 seconds.
- [How the Audit Works](https://code4x.dev/agent-readiness): 55-dimension technical rubric scoring discovery, structure, and interactivity.
- [Services & Pricing](https://code4x.dev/services): AI visibility audit, retainers, and engineering remediation.
- [Pricing Details](https://code4x.dev/pricing): Audit cost breakdown and retainer tiers.
- [Talk to an Engineer](https://code4x.dev/contact): Technical consultation on agent readiness.
- [Live Proof & Self-Audit](https://code4x.dev/proof): Continuous hourly self-audit against our own rubric.
- [Dimension Registry](https://code4x.dev/registry): All 55 rubric criteria scored across L1 to L4.
- [Free Tools](https://code4x.dev/tools): 8 tools for AEO engineers (calculators, generators, sandboxes).
- [MCP Server](https://code4x.dev/mcp): Model Context Protocol server interface for Cursor and Claude.

## Research & Benchmarks
- [Blogs Hub](https://code4x.dev/blogs): In-depth research, empirical benchmarks, and architectural guides.
- [AEO vs GEO vs AIO vs LLM SEO](https://code4x.dev/aeo-geo-aio-llm-seo): Complete taxonomy and differentiation guide.
- [We Audited Our Own Website](https://code4x.dev/we-audited-our-own-website): Transparent teardown of 37 checks on code4x.dev.
- [Resources & Index](https://code4x.dev/resources): Living tracker of agent readiness standards and drift logs.
- [Case Studies](https://code4x.dev/case-studies): Real-world client remediation stories and score improvements.

## Technical Guides
- [Guides Index](https://code4x.dev/guides): Complete technical implementation library.
- [Why AI Stopped Sending Traffic](https://code4x.dev/ai-visibility): The shift from click-through to direct answer extraction.
- [What is AEO?](https://code4x.dev/aeo): Answer Engine Optimization fundamentals and mechanics.
- [AEO vs GEO](https://code4x.dev/aeo-vs-geo): Comparing Answer Engine Optimization and Generative Engine Optimization.
- [AEO Agency vs In-House vs Engineering](https://code4x.dev/aeo-agency-vs-engineering): Why agent readiness is an engineering challenge.
- [AI Crawlers & robots.txt](https://code4x.dev/ai-crawlers-robots-txt): Managing bot access policies without losing citations.
- [Google AI Overviews](https://code4x.dev/ai-overviews): How Google formats and selects citation targets.
- [Content Negotiation for AI](https://code4x.dev/content-negotiation): Serving clean markdown to LLMs via Accept headers.
- [Do AI Crawlers Run JavaScript?](https://code4x.dev/javascript-and-ai-crawlers): Why client-side SPAs disappear from AI answers.
- [Lighthouse Agentic Browsing](https://code4x.dev/lighthouse-agentic-browsing): Dissecting Google Lighthouse 13.3 agent checks.
- [llms.txt Guide & Generator](https://code4x.dev/llms-txt): How llms.txt works and how to structure it.
- [Schema Drift](https://code4x.dev/schema-drift): When JSON-LD contradicts visible content and costs citations.
- [WebMCP Explained](https://code4x.dev/webmcp): Exposing callable functions to agentic browsers.

## Stakeholder Guides & Reference
- [For Engineering Leaders](https://code4x.dev/for-engineering-leaders): Technical validation and determinism for CTOs/VPs.
- [For Marketing Leaders](https://code4x.dev/for-marketing-leaders): Traffic loss explanation and agency questions for CMOs.
- [Glossary](https://code4x.dev/glossary): Definitions for 27 modern agentic web terms.
- [FAQ](https://code4x.dev/faq): 20 direct answers to common questions.
- [Comparison Guide](https://code4x.dev/compare): How Code4X differs from traditional SEO platforms.