After request lineCarriage return, Line feed at start of line indicates end of header linesHTTP HeadersHTTP Request HeaderHTTP Response HeaderHTTP General HeaderHTTP Entity Header HTTP Header UsagesHTTP X-HeaderHTTP Header Template Important HeadersThe 5 Most Important HTTP HeadersFor most web developers, a large part of your job will be building pages that interact with and respond to, APIs that are located on a remote server. The more you know about the HTTP protocol, the better you will be able to utilize these API interfaces.https://alexzitowolf.medium.com/the-5-most-important-http-headers-d9e9f94bb1f6More Diverse Headers[Network] HTTP 헤더의 종류 및 항목 - Heee's Development BlogStep by step goes a long way.https://gmlwjd9405.github.io/2019/01/28/http-header-types.html