RDFa is an additional format accustomed to embed rich metadata on Web content and documents. Enable’s use Google’s handle being an example. Incorporate numerous white space to your information; this decreases processing fluency and increases studying comprehension, which is an important Section of conversion and building a strong value proposition.  https://addons.prestashop.com/nl/seo-zoekmachineoptimalisatie-vermelding/31857-automatische-google-rich-snippets-json-ld-opengraph-seo.html