Network mapping in content delivery network

A system for providing an edge cache in a network, wherein said network comprises a plurality of edge caches, the system comprising:

• at least one processor;
• memory, operatively connected to the at least one processor and containing instructions that, when executed, causes the system to perform a method, the method comprising:
• determining, by a particular name server of one or more name servers, an estimated popularity of the particular name server for a particular resolver;
• determining, based on the estimated popularity, network data with respect to the particular name server relative to the particular resolver;
• determining network map data using at least the network data from the particular name server;
• in response to a client request, at least one name server of the one or more name servers determining at least one edge cache of the plurality of edge caches to process said client request, wherein said determining uses said network map data;
• and
• providing said client with information about said at least one edge cache to process said client request.

A computer-implemented method in a network, wherein said network comprises a plurality of edge caches, the computer-implemented method comprising:

• determining, by a particular name server of one or more name servers, an estimated popularity of the particular name server for a particular resolver, wherein said estimated popularity of said particular name server is determined by said particular name server based on a time-to-live (TTL) value associated with said particular hostname in a domain name system (DNS) record for said particular hostname;
• determining, based on the estimated popularity, network data with respect to the particular name server relative to the particular resolver;
• determining network map data using at least the network data from the particular name server;
• in response to a client request, at least one name server of the one or more name servers determining at least one edge cache of the plurality of edge caches to process said client request, wherein said determining uses said network map data;
• and
• providing said client with information about said at least one edge cache to process said client request.