--- service: i.root-servers.net start-period: '2013-07-17T00:00:00Z' end-period: '2013-07-18T00:00:20Z' metric: i-root-active-rssm-sites sites: amx amz ank ash bah bei bkx bnx chi col dex fix hkx jak jnb kat khi kul lnx lul mia mix nix par phi pix poa prt qtr rox sin sth tai thi tll tok ukx ula was wel wie yan