HTTP post

¢ When you send data from a form to the server using the HTTP post method, the form data is sent transparently in what is known as the HTTP headers. While you do not see these headers, they are sent in clear text and cannot be relied upon to be secure (unless you are sending data under a Secure Sockets Layer, or SSL).

¢The only issue with using the HTTP post method is that the information the user entered on the form cannot be bookmarked in the same way it can when it is contained in the URL. So you cannot use it to retrieve a page that was generated using specific form data as you can when you bookmark a page generated by most search engines, but it is good for security reasons.