Tusaale ahaan, tusaale ahaan calaamad calaamad muujinaysaa subdomain ah ee com domain, iyo www waa subdomain ah example.com. Geedkan of subdivisions laga yaabaa in ilaa 127 heerarka. calaamad A waxaa ku jiri kara eber si 63 characters. calaamad null, dhererka eber, waxaa loo qoondeeyey for zone xididka. magaca domain buuxa ma dhaafi karaan dhererka 253 characters in ay matalaad qoraal ah. In matalaad ah binary gudaha ee DNS dhererka ugu badnaan waxay u baahan tahay 255 octphenets of xarfaha, sida ay sidoo kale kaydisaa dhererka magaca. inkastoo aan lahayn xaddidaad farsamo si ay u isticmaalaan wax kasta oo calaamad calaamad muujinaysaa in ay ka kooban yihiin subdomain ah oo ay ka kooban yihiin octetets, fasiraadda doorbiday characters, iyo www waa subdomain ah example.com.
127-aad iyo