A standardized vocabulary of tags (from Schema.org) added to HTML that helps search engines understand the meaning and context of page content.
Schema markup is a form of structured data that uses the Schema.org vocabulary to annotate web page content in a way that search engines can understand. It is typically implemented using JSON-LD (JavaScript Object Notation for Linked Data) format embedded in the page's HTML.
Schema markup tells search engines not just what your content says, but what it means. A page about "Apple" could be about the fruit, the company, or a recipe. Schema markup disambiguates this by specifying the entity type (Organization, Product, Recipe, etc.).
Common schema types include: Article, FAQPage, HowTo, Product, Review, BreadcrumbList, Organization, LocalBusiness, and the newer DefinedTerm for glossary entries.
Schema markup enables rich results in search: star ratings, FAQ accordions, recipe cards, event details, and more. Pages with rich results have significantly higher click-through rates than standard blue links.
For GEO, schema markup is increasingly important because AI models use structured data to understand content more accurately. A page with proper FAQPage schema is more likely to have its Q&A content extracted for AI-generated answers.
Acta AI automatically generates FAQPage JSON-LD schema for every article, extracting 3-5 question-answer pairs from the content. The system also generates Article schema with proper author, date, and organization markup. This glossary itself uses DefinedTerm and DefinedTermSet schema.
Here is an Article schema that a blog post might use:
{
"@context": "https://schema.org",
"@type": "Article",
"headline": "How to Start a Podcast in 2026",
"author": {
"@type": "Person",
"name": "Sarah Chen"
},
"datePublished": "2026-03-15",
"publisher": {
"@type": "Organization",
"name": "Acta AI"
},
"description": "A step-by-step guide to launching a podcast, from equipment to distribution."
}And here is a FAQPage schema that targets People Also Ask placements:
{
"@context": "https://schema.org",
"@type": "FAQPage",
"mainEntity": [
{
"@type": "Question",
"name": "How much does it cost to start a podcast?",
"acceptedAnswer": {
"@type": "Answer",
"text": "Basic podcast setups start at $100-200 for a USB microphone and hosting. Professional setups with XLR mics, mixers, and acoustic treatment run $500-2,000."
}
}
]
}Google uses this structured data to display rich results: star ratings, FAQ accordions, recipe cards, and more.
Every article on our blog was written by Acta AI. No edits. No ghostwriter.
Read Our BlogStart Free Trial