What is GEO (Generative Engine Optimization)?

GEO stands for Generative Engine Optimization. It is the practice of optimizing your website to appear in AI-generated answers from ChatGPT, Perplexity, Google AI Overviews, and Claude. Foglift is the first tool to combine SEO and GEO analysis in one scan.

What does Foglift analyze?

Foglift scans websites across 5 categories: SEO (meta tags, headings, Open Graph), GEO (AI-crawler access, structured data, citation-readiness), Performance (Core Web Vitals, load time), Security (HTTP headers), and Accessibility (WCAG compliance, contrast, alt text).

How is Foglift different from Ahrefs or Semrush?

Ahrefs and Semrush focus only on traditional SEO. Foglift is the first tool to combine SEO + GEO (AI search optimization) analysis, checking if your site is ready for AI-generated answers. It starts free and costs 10x less than alternatives.

Does Foglift have an API?

Yes. Foglift offers a free public REST API at foglift.io/api/v1/scan that returns JSON results. Developers can use it from the terminal, CI/CD pipelines, or AI coding assistants like Claude Code and Cursor.

Blog

March 15, 2026·14 min read·SEO

JSON-LD for SEO: The Complete Schema Markup Guide for 2026

JSON-LD is Google's recommended format for structured data. It powers rich snippets, knowledge panels, and — increasingly — AI search citations. Here's everything you need to know about implementing it, with copy-paste examples for every common schema type.

What Is JSON-LD?

JSON-LD (JSON for Linking Data) is a method of encoding structured data using JSON syntax. It's embedded in your HTML within a <script type="application/ld+json"> tag and tells search engines exactly what your page is about — its type, properties, and relationships.

Unlike Microdata or RDFa (which mix structured data into HTML attributes), JSON-LD is a standalone block that doesn't touch your visible HTML. This makes it easier to implement, maintain, and debug.

Why JSON-LD Matters for SEO in 2026

Rich Snippets in Google

Pages with schema markup are eligible for enhanced search results: star ratings, FAQ accordions, how-to steps, recipe cards, event listings, and more. These rich snippets increase click-through rates by 20-30%.

AI Search Citations

AI search engines (ChatGPT, Perplexity, Google AI Overviews) extract structured data to understand and cite your content. Pages with comprehensive schema markup are more likely to be cited accurately by AI.

Knowledge Graph

Proper Organization, Person, and Product schema feeds into Google's Knowledge Graph, which powers knowledge panels and entity-based search results.

Essential Schema Types

Here are the most impactful schema types for SEO, with examples:

1. Article / BlogPosting

For blog posts and articles. Enables article rich results with author, date, and image.

{
  "@context": "https://schema.org",
  "@type": "Article",
  "headline": "Your Article Title",
  "author": {
    "@type": "Person",
    "name": "Author Name"
  },
  "datePublished": "2026-03-15",
  "image": "https://example.com/image.jpg",
  "publisher": {
    "@type": "Organization",
    "name": "Your Site"
  }
}

2. FAQPage

For FAQ sections. Enables expandable FAQ rich results in Google and is especially valuable for AI citation — AI models love citing structured Q&A content.

{
  "@context": "https://schema.org",
  "@type": "FAQPage",
  "mainEntity": [{
    "@type": "Question",
    "name": "What is GEO?",
    "acceptedAnswer": {
      "@type": "Answer",
      "text": "GEO (Generative Engine Optimization) is..."
    }
  }]
}

3. Product

For product pages. Enables price, availability, and rating rich snippets.

4. LocalBusiness

For local businesses. Powers Google Maps listings and local search results.

5. WebApplication / SoftwareApplication

For web apps and SaaS products. Tells search engines about your app's features, pricing, and platform support.

Use our JSON-LD Schema Generator to create markup for all 9 supported schema types — no coding required.

How to Add JSON-LD to Your Site

Generate the markup — Use our Schema Generator or write it manually following schema.org specifications.
Add to your HTML — Place the <script type="application/ld+json"> tag in your page's <head> or <body>.
Validate — Use our Structured Data Tester or Google's Rich Results Test to check for errors.
Monitor — Check Google Search Console's Enhancements tab for schema issues and rich result eligibility.

JSON-LD Best Practices

Use the most specific schema type (e.g., NewsArticle instead of Article for news)
Include all required properties — missing fields won't trigger rich results
Keep data accurate — Google may penalize sites with misleading schema
Use multiple schema types per page (e.g., Article + FAQPage + BreadcrumbList)
Don't mark up content that isn't visible on the page
Add schema to every page, not just the homepage

JSON-LD for AI Search (GEO)

AI search engines use structured data as a high-signal source for understanding your content. To maximize AI citations:

FAQPage schema — AI models directly extract and cite Q&A pairs
Organization schema — Helps AI identify and attribute your brand correctly
Comprehensive properties — The more properties you fill in, the richer the AI's understanding
Combine with llms.txt — Provide an /llms.txt file alongside your schema for maximum AI accessibility

Generate JSON-LD markup — free

Our schema generator supports 9 types. Create, copy, and paste into your site.

Open Schema Generator