I have ecommerce website (we sell welding equipment) with over 5k product pages (without reviews), 1k categories and many info-pages... but in main template integrated only Microdata for product pages with value - itemprop="name" .
I want use reach snippets for other pages, whats structured data best for my site - JSON-LD, Microdata or RDFa (or markup with schema.org)? What structured data is best for the category page?
If you want to have Rich Snippets in Google Search, you have to use the vocabulary Schema.org with a syntax that Google supports.
Currently, Google supports JSON-LD, Microdata and RDFa.
On Google’s "About schema.org" page, they still say that for JSON-LD only the Event Rich Snippet is supported, but this is most likely not true (anymore), as the documentation for their other Rich Snippets list JSON-LD, too. Google even recommends JSON-LD for the features it supports, and Microdata/RDFa for the ones not supported by JSON-LD; but I wouldn’t care too much about this.
Use whichever syntax works best for you. The only feature which currently seems to be exclusive to JSON-LD is that Google supports it also if it’s dynamically injected.
