JSON-LD and Structured Data — The Basics
Structured data makes content machine-readable. Why Google prefers JSON-LD, how a block is built, and why markup never guarantees a rich result.
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Structured Data
in Technisches SEO
Schema.org / JSON-LD Auszeichnungen für Rich Results.
Glossary
Author Schema / sameAs Structured Data
Structured markup of a page's author via Schema.org `Person` with a `sameAs` array of profile URLs (LinkedIn, ORCID, Mastodon) — supports E-E-A-T and knowledge graph entity recognition.
Structured Data Structured Data
Structured data is machine-readable markup in HTML — typically using the Schema.org vocabulary in JSON-LD format — that explains a page's content precisely to search engines.
Encyclopedia
Schema Types for Rich Results — what still triggers SERP features in 2026
Which schema.org types still earn real rich results, which only deliver machine understanding, and why markup never guarantees a snippet.
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Structured Data as a GEO Lever
Why schema.org markup matters again for AI visibility — and where the honest line runs. The bridge between technical SEO and GEO.
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Testing and Debugging Structured Data — Tools, Errors and a Clean Workflow
Rich Results Test, the Schema Markup Validator and the GSC reports compared — plus the difference between an error and a warning, and a clear debug workflow.
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