Schema Markup CheckerBlog
Guides on structured data, schema.org and Google rich results, written while building the checker.
JSON-LD vs Microdata: Which Structured Data Format Should You Use?
How JSON-LD, Microdata and RDFa differ, what Google actually supports, and when it still makes sense to keep Microdata on an existing site.
10 Common Schema Markup Errors and How to Fix Them
The structured data errors that appear most often in site scans: invalid JSON, missing required properties, wrong value types, duplicate entities, and what to change in each case.
Product Schema Markup: Required and Recommended Properties for Google
Which Product properties Google needs for product snippets and merchant listings, how to mark up price, availability, reviews and variants, and the mistakes that cost you the rich result.
How to Add JSON-LD Structured Data to Any Web Page
A step-by-step guide to adding JSON-LD schema markup: choose the type, write the script, place it in the HTML, validate it and watch for Google rich results.