HTTP cookies
An HTTP cookie is a small text file or piece of code added to a Web site from a server to store information locally. This involves the use of the HTTP protocol.
The letters HTTP stand for "hypertext transfer protocol." This is a protocol used for communication between a Web client and a Web server and is frequently used on both the worldwide Web and local networks.
A cookie is a text file used to personalize visitors to a website. The use of HTTP cookies primarily serves to monitor the session management (i.e., website behavior) of an individual visitor, remember that person's user preferences and/or analyze user behavior to digitally track that visitor.