Microdata displays information using attributes such as itemtype and itemprop in HTML. Unlike JSON-LD, it is strongly coupled with the body HTML structure.
Microdata maintenance can become difficult if the HTML structure is complex. When changing the template, there is a possibility that the structured data may be broken.
If your existing site uses Microdata, check for errors with a verification tool. New implementations often choose JSON-LD because of its manageability.
Microdata is covered in structured data and the schema category, and it is easy to understand its location in the document structure when read together with items such as JSON-LD, RDFa, and Schema.org.
Key takeaways
- Microdata is a term related to the type, properties, verification, and search result expression of structured data.
- It is used to check whether the visible text and the data read by the machine convey the same meaning.
- When viewed together with JSON-LD and RDFa, it is easy to distinguish the scope of schema coverage.
- It is useful for checking rich-result eligibility, entity clarity, and document relationship expression.