Alamar alama ta ƙayyade subdomain na yankin com, kuma www shine subdomain na misali.com. Wannan itace na rarrabuwa na iya samun matakan 127. A alama na iya ƙunsar sifili zuwa haruffa 63. Alamar sifili, tsawon sifili, an tanada don yankin tushe. Cikakken sunan yankin ba zai iya wuce tsawon haruffa 253 a cikin wakilcin rubutu ba. A cikin wakilcin binary na DNS na ciki mafi girman tsawon yana buƙatar 255 octphenets na octphenets, kamar yadda kuma yana adana tsawon sunan. Kodayake babu iyakancewar fasaha don amfani da kowane suna a cikin alamomin da za a iya wakilta ta hanyar octet na octet, da aka fi son fassarar alamomi, da kuma www.com. Wannan itace na rarrabuwa na iya samun matakan 127. Alamar alama na iya ƙunsar sifili zuwa haruffa 63. Alamar sifili, tsawon sifili, tsawon sifili, an tanada don yankin tushe. A cikin tsarin RFC, ana iya amfani da lambar ID na ƙasa mai lamba 589, wanda ya ba da izini a shigarwa ta hanyar tsarin RFC (R
Ƙungiyar 127