Schema markup or structured information could be defined as facts that describes details on the net page, or so-termed com and Instagram.com. DNS Preconnect: As with DNS Prefecth, you will have to listing the names of hosts you should pre-connect to after you load your house web site. It is https://addons.prestashop.com/ru/seo-natural-search-engine-optimization/31857--rich-snippets-json-ld-opengraph-seo.html