Domain name resolution resource allocation

A method for delivering content over the Internet using a plurality of points of presence (PoPs) that are geographically distributed, wherein the method comprises:

• receiving a first domain resolution request with a PoP from the plurality of PoPs;
• producing a first DNS solution with the PoP corresponding to the first domain resolution request;
• returning the first DNS solution from the PoP;
• receiving a second domain resolution request with the PoP;
• producing a second DNS solution with the PoP corresponding to the second domain resolution request;
• returning the second DNS solution from the PoP;
• receiving a third domain resolution request with the PoP;
• producing a third DNS solution with the PoP corresponding to the third domain resolution request;
• and
• returning the third DNS solution from the PoP, wherein:
• the first, second and third domain resolution requests correspond to a same domain or content originator,
• a plurality of caching servers corresponding to a plurality of addresses,
• the first DNS solution comprises a first plurality of addresses corresponding to at least a first subset of the plurality of caching servers,
• the first DNS solution is produced at a first time,
• the second DNS solution comprises a second plurality of addresses corresponding to at least a second subset of the plurality of caching servers,
• the second DNS solution is produced at a second time,
• the third DNS solution comprises a third plurality of addresses corresponding to at least a third subset of the plurality of caching servers,
• the third DNS solution is produced at a third time,
• the first subset includes at least one server that is different from the second subset, based, at least in part, on a change in allocation of a first caching server for DNS solutions corresponding to the domain or content originator,
• the first caching server is no longer allocated for DNS solutions corresponding to the domain after the first time and before the third time,
• the first caching server is removed from allocation for DNS solutions corresponding to the domain based, at least in part, on activity associated with the domain or content originator relative to a first threshold,
• the third subset is different from the second subset in that the third subset includes the first caching server,
• the first caching server is allocated for DNS solutions corresponding to the domain or content originator at the third time, and
• the first caching server is allocated for DNS solutions corresponding to the domain or content originator, based, at least in part, on activity associated with the domain relative to a second threshold.

A method for delivering content over the Internet using a plurality of points of presence (PoPs) that are geographically distributed across the Internet, wherein the method comprises:

• receiving a first domain resolution request with a PoP of the plurality of PoPs;
• determining a first set of a plurality of servers allocated to a first domain with the PoP;
• producing a first DNS solution corresponding to the first domain resolution request with the PoP;
• returning the first DNS solution from the PoP;
• receiving a second domain resolution request with the PoP;
• determining a second set of the plurality of servers allocated to the first domain with the PoP;
• producing a second DNS solution corresponding to the second domain resolution request with the PoP;
• returning the second DNS solution from the PoP;
• receiving a third domain resolution request with the PoP;
• determining a third set of the plurality of servers allocated to the third domain with the PoP;
• producing a third DNS solution corresponding to the third domain resolution request with the PoP;
• returning the third DNS solution from the PoP, wherein:
• the first, second and third domain resolution requests indicate the first domain,
• a plurality of servers corresponding to a plurality of addresses,
• the first DNS solution comprises a first plurality of addresses corresponding to at least a first subset of the first set,
• the first DNS solution is determined at a first time,
• the second DNS solution comprises a second plurality of addresses corresponding to at least a second subset of the second set,
• the second DNS solution is determined at a second time,
• the third DNS solution comprises a third plurality of addresses corresponding to at least a third subset of the third set,
• the third DNS solution is determined at a third time, the first DNS solution includes a first address absent from the second DNS solution,
• the first and second sets are different in that they reflect change in the plurality of servers allocated to the first domain,
• the first address absent from the second DNS solution corresponds to a first server allocated to a second domain that is no longer allocated to the first domain at the second time,
• the first address is no longer allocated for DNS solutions corresponding to the first domain after the first time and before the third time,
• the first address is removed from allocation for DNS solutions corresponding to the domain based, at least in part, on activity associated with the domain relative to a first threshold,
• the third DNS caching solution includes the first address absent from the second solution,
• the first caching server is allocated for DNS solutions corresponding to the first domain or content originator at the third time, and
• the first caching server is allocated for DNS solutions corresponding to the first domain based, at least in part, on activity associated with the domain relative to a second threshold.