NoozNooz42 NoozNooz42 - 1 year ago 92
HTTP Question

How to test an HTTP 301 redirect?

How can one easily test HTTP return codes, like, say, a 301 redirect?

For example, if I want to "see what's going on", I can use telnet to do something like this:

... $ telnet nytimes.com 80

Trying 199.239.136.200...
Connected to nytimes.com.
Escape character is '^]'.


GET / HTTP/1.0

(enter)

(enter)

HTTP/1.1 200 OK
Server: Sun-ONE-Web-Server/6.1
Date: Mon, 14 Jun 2010 12:18:04 GMT
Content-type: text/html
Set-cookie: RMID=007af83f42dd4c161dfcce7d; expires=Tuesday, 14-Jun-2011 12:18:04 GMT; path=/; domain=.nytimes.com
Set-cookie: adxcs=-; path=/; domain=.nytimes.com
Set-cookie: adxcs=-; path=/; domain=.nytimes.com
Set-cookie: adxcs=-; path=/; domain=.nytimes.com
Expires: Thu, 01 Dec 1994 16:00:00 GMT
Cache-control: no-cache
Pragma: no-cache
Connection: close

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
...


Which is an easy way to access quite some infos.

But now I want to test that a 301 redirect is indeed a 301 redirect.

How can I do so?

Basically, instead of getting a HTTP/1.1 200 OK I'd like to know how I can get the 301?

I know that I can enter the name of the URL in a browser and "see" that I'm redirected, but I'd like to know what tool(s) can be used to actually really "see" the 301 redirect.

Btw, I did test with a telnet, but when I enter www.example.org, which I redirected to example.org (without the www), all I can see is an "200 OK", I don't get to see the 301.

Answer Source

OK, two minutes after answering the question I found the answer...

Doing the following doesn't work:

telnet www.example.org 80
GET / HTTP/1.0
{enter}
{enter}

But the following works fine:

telnet example.org 80
GET / HTTP/1.0
Host: www.example.org
{enter}
{enter}

My error was to pass www.example.org to telnet (instead of example.org) and then not specifying any "Host: ".

Now it works, I get this:

Connected to xxx.xx
Escape character is '^]'.
GET / HTTP/1.0
Host: www.example.org

HTTP/1.1 301 Moved Permanently
Server: Apache-Coyote/1.1
Location: http://example.org/
Connection: close
Date: Mon, 14 Jun 2010 13:02:22 GMT
Connection: close

Connection closed by foreign host.

Note: On Windows Vista/7, Telnet Client is not installed by default. To install it, follow the directions here: Install Telnet Client - Microsoft TechNet

Recommended from our users: Dynamic Network Monitoring from WhatsUp Gold from IPSwitch. Free Download