HTTP Protocol Tutorial

Introduction Requests and answers Absence of state HTTP Message Structure HTTP Request Start Line HTTP Request Methods HTTP response start line HTTP Response Status Code Groups HTTP Headlines HTTP Header Groups Useful HTTP Headers Custom HTTP Headers HTTP message body Automatic HTTP browser requests HTTP Request Costs HTTP messages in browser debugger

HTTP redirects HTTP Referer User Agent HTTPS GET parameters Submitting forms using the GET method Submitting forms using the POST method MIME types AJAX Cookie Sessions API REST API