SEO Glossary
Google recommends JSON-LD (JavaScript Object Notation for Linked Data) as the preferred format. It is embedded as a separate `<script>` tag in the head and is decoupled from the HTML markup — easier to maintain and less error-prone. Microdata and RDFa are written directly into HTML attributes and are more tightly coupled to the DOM, which can lead to conflicts on complex pages. JSON-LD is the modern standard.
Organization and LocalBusiness: for company data and local SEO. Article and BlogPosting: for content marketing. FAQ and HowTo: for featured snippets and rich results. Product with Offer and AggregateRating: for e-commerce. BreadcrumbList: for display in the SERPs. VideoObject: for video rich results. The right combination of these types determines whether Google shows your page as a rich result.
Google's Rich Results Test checks whether structured data is eligible for Google rich results. The Schema.org validator checks general schema conformance. mekyn's Schema Validator combines both perspectives: it checks against 30+ rich result types and provides concrete fix suggestions. All mekyn pages ship automatically with matching schema — no manual JSON-LD writing required.
Missing required fields (e.g., `name` on `Product`), incorrect nesting, invalid URLs, and contradictory statements are the most common validation errors. Particularly treacherous: Google silently ignores schema that does not comply with the rich result guidelines — the page then remains without a rich result even though the validator shows green.
You can find a detailed answer in the explanation above. For practical application, we recommend our tools.
You can find a detailed answer in the explanation above. For practical application, we recommend our tools.
You can find a detailed answer in the explanation above. For practical application, we recommend our tools.
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