What are important HTTP headers to be frequently used in Python CGI Programming?

Python Server Side Programming Programming CGI HTTP

HTTP Header

The line Content-type:text/html\r\n\r\n is part of HTTP header which is sent to the browser to understand the content. All the HTTP header will be in the following form −

HTTP Field Name − Field Content

For Example

Content-type − text/html\r\n\r\n

There are few other important HTTP headers, which we will use frequently in our CGI Programming.

Sr.No.	Header	Description
1	Content-type:	A MIME string defining the format of the file being returned. Example is Content-type:text/html
2	Expires: Date	The date the information becomes invalid. It is used by the browser to decide when a page needs to be refreshed. A valid date string is in the format 01 Jan 1998 12:00:00 GMT.
3	Location: URL	The URL that is returned instead of the URL requested. You can use this field to redirect a request to any file.
4	Last-modified: Date	The date of last modification of the resource.
5	Content-length: N	The length, in bytes, of the data being returned. The browser uses this value to report the estimated download time for a file.
6	Set-Cookie: String	Set the cookie passed through the string