HTTP stands for Hypertext Transfer Protocol and it was first used in the World Wide Web global information initiative in 1990.
Since then, HTTP has became a part of our every application, basically we can said and a part of our lives. Every day when we search something on the internet we use HTTP , sometimes we have to actively use HTTP to solve problem.
ColdFusion has built-in its own tags for HTTP support. As web developer you have to take advantage how to use this tag.