--- service: i.root-servers.net start-period: '2015-09-19T00:00:00Z' end-period: '2015-09-20T00:00:04Z' metric: i-root-active-rssm-sites sites: amx amz ank ash bah bei bkx bnx chi cmx dbi dex fix gva hkx jak jnb jpp kat khi kul lnx lul mia mix mum nix par pix poa prt qtr rox rwx sin sox spb sth tai thi tll tok ukx ula vux was wel wie yan