The Website Specification: Open Reference for Modern Web Standards and Best Practices

LinkResource

The Website Specification (specification.website) is a platform-agnostic, open-source guide licensed under MIT, detailing the technical features a good website should implement. It spans HTML foundations, SEO, accessibility, security, and agent readiness, offering direct Markdown access, an MCP server, and an Agent Skill.

Key points

  1. Platform-agnostic, open-source specification under the MIT licence for modern web standards.
  2. Covers HTML fundamentals, SEO, accessibility, security, well-known URIs, performance, and agent readiness.
  3. Content is accessible as raw Markdown (via .md suffix or Accept header) and aggregated in llms-full.txt.
  4. Provides an MCP server with search, topic retrieval, checklists, and URL audit tools, plus an Agent Skill specification.
  5. Designed to complement MDN: this specification determines what to verify and require, while MDN covers implementation details and browser support.

Why it matters

Web standards and compliance requirements continue to evolve rapidly. The Website Specification serves as a consolidated reference and checklist for developers, QA engineers, and automated auditing pipelines.

Analysis

The project tackles the fragmentation of technical best practices across web development. By offering native Markdown endpoints, an MCP server, and machine-readable Agent Skills, it prioritises integration with AI development workflows. This allows development teams to use the specification both as a human reference and as an automated linting standard within AI-assisted workflows.

Mentioned links

Found in

Summary generated by AI (Gemini 3.8 Flash, 27 September 2026). It may contain errors – the original source is authoritative.

Related entries

Similar in content, found by the AI search.

  • Repository:modelcontextprotocol/modelcontextprotocol

    Model Context Protocol (MCP): Official Specification and Documentation

    The modelcontextprotocol/modelcontextprotocol GitHub repository provides the formal specification, protocol schema, and official documentation for the Model Context Protocol (MCP).

    9.1kstarsTypeScript

    AI & LLMs· Resource

  • Link:Joost de Valk

    The Future of the Website: Interface Bundles and Verifiable Home Bases

    Joost de Valk explores the evolution of websites in the age of AI agents. Rather than disappearing, websites are shifting from human-only HTML pages into canonical systems of record. They must serve as interface bundles—including protocols like MCP—that allow automated agents to read data and take actions, while verifiable authenticity remains the only lasting competitive moat.

    AI & LLMs· Opinion

  • Link:Jeremy Howard

    The /llms.txt Specification v2 for Web-Browsing AI Agents

    Jeremy Howard presents version 2 of the /llms.txt proposal, specifying how websites can provide structured Markdown overviews and direct links so AI agents can navigate content efficiently.

    AI & LLMs· Resource

  • Link:Addy Osmani

    Addy Osmani Releases Accessibility Skill for WCAG 2.2

    Addy Osmani has published an accessibility skill and audit guide aligned with WCAG 2.2 standards and Lighthouse audits. Installable via npx, the skill outlines an evidence-based workflow combining automated checks and manual inspection.

    AI & LLMs· Tool

  • Repository:speclib/awesome-openspec

    Awesome OpenSpec: Curated Resources for Spec-Driven Development with AI

    The awesome-openspec repository collects tools, user interfaces, extensions, and documentation for OpenSpec and the Spec-Driven Development (SDD) methodology. OpenSpec helps AI coding assistants follow structured instructions reliably within codebases.

    65starsJavaScript

    AI & LLMs· Resource

Back to the knowledge base

Let's talk about your project

Get in touch

Locations

  • Mattersburg
    Johann Nepomuk Bergerstraße 7/2/14
    7210 Mattersburg, Austria
  • Vienna
    Ungargasse 64-66/3/404
    1030 Wien, Austria

Parts of this content were created with the assistance of AI.