Glossary · Topic 04 · 15 terms
Structured Data & Schema
Machine-readable formats and vocabularies AI engines parse to ground their answers.
ActivityPubThe W3C protocol the Fediverse runs on. Every post and profile is a typed JSON-LD object with its own web address.Canonical Knowledge RepresentationA single, authoritative shape for the facts on your site, free of contradiction across pages.CUEA language that describes the shape of data and the data itself in one file, so a file can be checked against its own schema.DCATA W3C vocabulary for describing datasets: what a dataset is, who publishes it, and where it can be downloaded.Entity Recognition for SEOIdentifying the named entities (people, places, products) on a page.JSON-LDJavaScript Object Notation for Linked Data - the preferred format for embedding schema.org markup.Knowledge GraphsStructured representations of entities and relationships.llms.txtA plain-text file at your domain root that tells language models what your site is about and which pages matter most.N3 (Notation3)Turtle plus rules: an RDF syntax that can also say if this, then that, so a reasoner can derive facts you never wrote down.Schema.orgA shared vocabulary for structured data on the web.Semantic HTMLUsing HTML elements for their meaning (article, nav, aside) rather than just visual layout.Structured DataMachine-readable annotations on web pages - JSON-LD, microdata, RDFa.TOMLA configuration format with explicit types, so a date is a date and the word no stays the word no.TurtleA compact text syntax for RDF: one fact per line, written as subject, predicate, object.YAMLA plain-text data format that uses indentation instead of brackets, so a person can read it and a machine can parse it.
The full 76-term glossary.
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