<script type="application/ld+json">
{  "@context":"http://schema.org",
   "@type":"WebSite",
   "name":"Site name",
   "alternateName":"Site alternatime name",
   "description":"Site description",
   "keywords":"list of keyword",
   "inLanguage":"en",
   "url":"http://www.example.eu/en",
   "potentialAction":{
   "@type":"SearchAction",
   "target":"http://www.example.com/en/find/{search_term_string}",
   "query-input":"required name=search_term_string"
   }
}
</script>