query: embed.html#SELECT ?item ?itemLabel ?itemDescription ?u 
  {
  	?item wdt:P31 wd:Q20726407 ; wdt:P856 ?u 
      FILTER(CONTAINS( stR(?u), "tools.wmflabs.org")   )       
  	SERVICE wikibase:label { bd:serviceParam wikibase:language "en" }
  }