1. A server (ns 1 ) of a domain (z 1 .com) in a telecommunications network ( 1 ) adapted to manage DNS queries relating to said domain (z 1 .com), including means ( 10 ) for receiving from a client device (CL 1 ) a query seeking to obtain DNS data (IP(domain 2 .z 1 .com)) of that domain, wherein said server comprises: a zone file containing a partitioning rule defining a partitioning of the set of subdomains (domain 1 .z 1 .com, domain 2 .z 1 .com) of said domain (z 1 .com) into subzones, the DNS data of each of said subzones being hosted by a partition server; means ( 10 ) for obtaining from said zone file sufficient information to identify the appropriate partition server capable of responding to said query; and mean ( 10 ) for sending said useful information to the client device (CL 1 ) in response to said query.