Preventing double-redirects

I'm upgrading a vB site from 2.2.9 to 3.6.8 and want to add vBseo to the upgraded site, but I have a potential redirect problem.

The url path format is different between 2.2.9 and 3.6.8:

from

mysite.com/forums/showthread.php?s=&threadid=6115

to

mysite.com/forums/showthread.php?t=6115

I don't want to have to do two redirects for every page - one to get to the new vB url format, one to get to the relevant (vBseo) format.

Is it possible to set a rewrite rule so that there is only one redirect and not two?

Hello,

vBSEO should redirect old format in one step as well.

Hi Oleg,

Without getting into the code itself, I'm wondering how it's able to do that. Can you explain it a bit?

I just don't want to get everything set up only to find it isn't able to accomplish that.

Thanks in advance.

You can try that by simply entering this URL in address bar:

Code:

http://www.vbseo.com/showthread.php?s=&threadid=19169

Here is the request:

Code:

GET /showthread.php?s=&threadid=19169 HTTP/1.1
Host: www.vbseo.com

response:

Code:

HTTP/1.x 301 Moved Permanently
Location: http://www.vbseo.com/f55/preventing-double-redirects-19169/

Nice!