Various techniques for purging resource records stored in a cache of domain name system servers are disclosed herein. In one embodiment, a method includes receiving, at a caching server, a DNS query via a computer network. In response to receiving the DNS query, the caching server determines if the received DNS query indicates a request to purge the one or more resource records stored in the DNS cache on the caching server. In response to determining that the received DNS query indicates a request to purge the one or more resource records stored in the DNS cache on the caching server, the caching server purges the one or more resource records from the DNS cache on the caching server.