Systems and methods for resolving a request associated with a host expression to an Internet Protocol (IP) address are provided. In some aspects, a request for content from a content server is transmitted from a client computing device. The request is associated with a host expression of the content server. A message including the requested content and an indication of an Internet Protocol (IP) address set of a DNS resolution of the host expression of the content server is received in response to the request. The requested content includes text or an image. The IP address set of the DNS resolution of the host expression of the content server is stored in a local memory of the client computing device. The IP address set is stored for resolution of future requests associated with the host expression of the content server locally at the client computing device.