--- service: i.root-servers.net start-period: '2016-04-20T00:00:00Z' end-period: '2016-04-21T00:00:01Z' metric: i-root-active-rssm-sites sites: amx amz ank ash bah bei bkx chi cmx dbi dex fix gva hkx jnb jpp kat khi kul lnx lul lux mia mix mum nix pix poa prt qtr rox rwx sin sox spb sth tai thi tll tok ukx ula vux was wel wie yan