query: SELECT ?lang ?langLabel (COUNT(DISTINCT ?website) as ?count)
  WHERE {
    ?lang wdt:P31/wdt:P279* wd:Q4830453.
    ?lang p:P4776 ?website.
    SERVICE wikibase:label { bd:serviceParam wikibase:language "en" }
  }
  GROUP BY ?lang ?langLabel
  ORDER BY DESC(?count)