There are different ways of transferring data from the browser or application to the servers and back. The rules for these methods are described in special protocols. Some are used where there is no need to exchange data quickly, such as on information websites, while others are used where speed is essential, particularly in the Internet of Things.

There are different ways of transferring data from the browser or application to the servers and back. The rules for these methods are described in special protocols. Some are used where there is no need to exchange data quickly, such as on information websites, while others are used where speed is essential, particularly in the Internet of Things.