SEO
Schema Markup in 2026: The Complete Guide to Structured Data for Google and AI Search
Schema markup used to be about star ratings in search results. In 2026 it has a second job: helping Google AI Overviews, ChatGPT, and Perplexity decide whether to cite your business at all. This is the complete, honest guide to structured data — what actually works, what Google's March 2026 update changed, and the exact code for the five schema types that matter most.