GEO Scoring Categories

Glippy evaluates websites across 10 categories, each measuring a different aspect of AI and LLM readiness.

What is GEO?

Generative Engine Optimization measures how well your website is prepared for AI crawlers, LLM-powered search engines, and AI agents. Higher GEO scores mean AI systems can better understand, cite, and interact with your content.

How Scoring Works

  • Each category produces a score from 0-100
  • The overall score is calculated from all category scores

Letter Grades

A+ 90-100 A 80-89 B 70-79 C 60-69 D 40-59 F 0-39

Category Details

1 Structured Data & Schema

Measures the presence and quality of machine-readable structured data that helps AI systems understand your content's meaning and context.

What we check

  • JSON-LD presence and validity
  • Schema.org types (FAQPage, Article, Product, HowTo, etc.)
  • Speakable markup for voice assistants
  • Schema validation and completeness

Why it matters

Structured data is the primary way AI systems extract facts and relationships from web pages. High-quality schemas dramatically improve how AI cites and represents your content.

2 Semantic HTML

Evaluates the use of meaningful HTML elements that convey document structure and content hierarchy to AI parsers.

What we check

  • Proper heading hierarchy (H1-H6)
  • Semantic elements (<article>, <nav>, <main>, <section>)
  • Content-to-markup ratio
  • Logical document outline

Why it matters

AI systems parse HTML structure to understand content relationships. Proper semantic markup helps LLMs identify main content, navigation, and content sections.

3 Accessibility for Agents

Checks accessibility features that help both human assistive technologies and AI agents understand your content.

What we check

  • Lang attribute on HTML element
  • Alt text on images
  • ARIA labels and roles
  • Descriptive link text (not "click here")

Why it matters

Accessibility features provide crucial context that AI systems use to understand images, interactive elements, and content purpose. What's good for screen readers is often good for AI.

4 Internal Linking

Analyzes how well your site's pages are connected and how clearly the link structure conveys content relationships.

What we check

  • Link density and distribution
  • Navigation structure clarity
  • Breadcrumb markup
  • Related content links

Why it matters

AI crawlers use internal links to discover content and understand topical relationships. Clear linking helps AI systems map your site's knowledge graph.

5 Meta & Discoverability

Evaluates metadata that helps AI systems understand and properly attribute your content.

What we check

  • Title tag presence and quality
  • Meta description
  • Canonical URL
  • Open Graph and Twitter Card tags
  • Hreflang for internationalization

Why it matters

Metadata provides context that AI uses when summarizing, citing, and categorizing your content. Good metadata improves how AI represents your pages.

6 Machine Readability

Measures technical factors that determine whether AI systems can access and process your content.

What we check

  • Server-side rendering (SSR) vs. client-only JS
  • Bot blocking mechanisms
  • Robots.txt rules for AI crawlers (GPTBot, ClaudeBot, etc.)
  • llms.txt file presence and contents

Why it matters

If AI crawlers can't access or render your content, nothing else matters. This category ensures your technical setup doesn't block AI systems.

7 Entity & Authority

Checks for signals that help AI systems understand who created the content and establish trustworthiness.

What we check

  • Author information and bylines
  • Publication dates
  • Organization schema
  • About and contact information

Why it matters

AI systems increasingly consider source authority when deciding what to cite. Clear authorship and organizational identity help establish trust.

8 Citability & Answer-Readiness

Evaluates how well your content is formatted for AI systems to extract and cite specific answers.

What we check

  • FAQ content with clear Q&A format
  • Data tables with headers
  • Well-structured lists
  • Lead paragraph quality (answering who/what/when/where)

Why it matters

LLM-powered search engines prefer content they can easily quote. FAQ sections, tables, and clear lead paragraphs make your content more likely to be featured in AI answers.

9 Performance & Crawlability

Measures factors affecting how efficiently AI systems can crawl and process your pages.

What we check

  • Image dimensions specified in HTML
  • Lazy loading implementation
  • Resource hints (preload, prefetch)
  • Page size and complexity

Why it matters

While less critical than content quality, performance affects crawl efficiency. Faster, lighter pages are more likely to be fully indexed.

10 Agent Interactivity

Evaluates support for AI agents that can take actions on behalf of users.

What we check

  • WebMCP tools and endpoints
  • Form annotations and labels
  • Agent-callable actions
  • API documentation presence

Why it matters

This is an emerging category as AI agents become more capable. Sites that support programmatic interaction will have advantages as agent-based browsing grows.