1. A computer-implemented method, comprising: storing a set of rules, wherein a rule is associated with a condition, wherein a rule defines when to transmit customized webpage data, and wherein customized webpage data corresponds to an interaction with a webpage; receiving, at a server, a request for a default tag code, wherein the request is associated with loading webpage data on a computing device, wherein the webpage data includes original content data and a tag, wherein the tag is configured to facilitate communication between the computing device and the server, wherein when the webpage data is loaded on the computing device, the computing device displays a webpage corresponding to the original content data and the tag causes the request for the default tag code to be transmitted to the server; transmitting the default tag code, wherein when the default tag code is received at the computing device, the default tag code is executed, wherein executing the default tag code generates a tag module that is stored in the computing device, wherein the default tag code includes instructions that configure the tag module to monitor an interaction with the webpage, and wherein the tag module is associated with a tag identifier; receiving behavior data depicting one or more interactions with the webpage, wherein the behavior data is generated and appended to the tag identifier associated with the tag module when the tag module detects an interaction; selecting a rule from the stored set of rules, wherein selecting includes using the tag identifier, and wherein the rule defines customized webpage data; determining whether the behavior data appended to the tag identifier satisfies the condition associated with the rule; and transmitting the customized webpage data when the condition associated with the rule has been satisfied.