HTTP Headlines
After the start line, HTTP headers are transmitted. Headers specify additional parameters of the HTTP message. Technically, each header must start on a new line. And when all the headers are listed, there must be an empty line and the body of the HTTP message.
Each header consists of a name and a value. They are separated by a colon. Let's look at some header examples:
Content-Type: text/html;charset=utf-8
Content-Language: ru
Last-Modified: Sat, 16 Jan 2020 21:16:42 GMT
