Please Whitelist This Site?

I know everyone hates ads. But please understand that I am providing premium content for free that takes hundreds of hours of time to research and write. I don't want to go to a pay-only model like some sites, but when more and more people block ads, I end up working for free. And I have a family to support, just like you. :)

If you like The TCP/IP Guide, please consider the download version. It's priced very economically and you can read all of it in a convenient format without ads.

If you want to use this site for free, I'd be grateful if you could add the site to the whitelist for Adblock. To do so, just open the Adblock menu and select "Disable on tcpipguide.com". Or go to the Tools menu and select "Adblock Plus Preferences...". Then click "Add Filter..." at the bottom, and add this string: "@@||tcpipguide.com^$document". Then just click OK.

Thanks for your understanding!

Sincerely, Charles Kozierok
Author and Publisher, The TCP/IP Guide


NOTE: Using software to mass-download the site degrades the server and is prohibited.
If you want to read The TCP/IP Guide offline, please consider licensing it. Thank you.

The Book is Here... and Now On Sale!

Searchable, convenient, complete TCP/IP information.
The TCP/IP Guide

Custom Search







Table Of Contents  The TCP/IP Guide
 9  TCP/IP Application Layer Protocols, Services and Applications (OSI Layers 5, 6 and 7)
      9  TCP/IP Key Applications and Application Protocols
           9  TCP/IP File and Message Transfer Applications and Protocols (FTP, TFTP, Electronic Mail, USENET, HTTP/WWW, Gopher)
                9  TCP/IP World Wide Web (WWW, "The Web") and the Hypertext Transfer Protocol (HTTP)
                     9  TCP/IP Hypertext Transfer Protocol (HTTP)
                          9  HTTP Message Headers

Previous Topic/Section
HTTP Request Headers
Previous Page
Pages in Current Topic/Section
1
2
Next Page
HTTP Entity Headers
Next Topic/Section

HTTP Response Headers
(Page 1 of 2)

The counterpart to request headers, response headers appear only in HTTP responses sent by servers or intermediaries. They provide additional data that expands upon the summary information that is present in the status line at the beginning of each server reply. Many of the response headers are sent only in response to the receipt of specific types of requests, or even particular headers within certain requests.

There are nine response headers defined for HTTP/1.1.

Accept-Ranges

Tells the client whether or not the server accepts partial content requests using the Range request header, and if so, what type. Typical examples include “Accept-Range: bytes” if the server accepts byte ranges, or “Accept-Range: none” if range requests are not supported.

Note that this is header is different from the other “Accept-” headers, which are used in HTTP requests to perform content negotiation.

Age

Tells the client the approximate age of the resource, as calculated by the device sending the response.

ETag

Specifies the entity tag for the entity included in the response. This value can be used by the client in future requests to uniquely identify an entity, using the If-Match request header or similar.

Location

Indicates a new URL that the server is instructing the client to use in place of the one the client initially requested. This header is normally used when the server redirects a client request to a new location, using a 301, 302 or 307 reply. It is also used to indicate the location of a created resource in a 201 (“Created”) response to a PUT request.

Note that this is not the same as the Content-Location entity header, which is used to indicate the location of the originally-requested resource.


Previous Topic/Section
HTTP Request Headers
Previous Page
Pages in Current Topic/Section
1
2
Next Page
HTTP Entity Headers
Next Topic/Section

If you find The TCP/IP Guide useful, please consider making a small Paypal donation to help the site, using one of the buttons below. You can also donate a custom amount using the far right button (not less than $1 please, or PayPal gets most/all of your money!) In lieu of a larger donation, you may wish to consider purchasing a download license of The TCP/IP Guide. Thanks for your support!
Donate $2
Donate $5
Donate $10
Donate $20
Donate $30
Donate: $



Home - Table Of Contents - Contact Us

The TCP/IP Guide (http://www.TCPIPGuide.com)
Version 3.0 - Version Date: September 20, 2005

© Copyright 2001-2005 Charles M. Kozierok. All Rights Reserved.
Not responsible for any loss resulting from the use of this site.