How to maintain google ranking after a CMS change?

[Silver]

I'm using Joomla now, and I've got a couple hundred hits from google every month, along with a decent ranking for certain keywords. I don't wnat to loose that, but I'm afraid that once I switch to this CMS the URLs will be different, and I'll loose that traffic.

Any suggestions on how to fix that?

[Dr.CSS]

What do they look like now?...

[Silver]

What does what look like now? The URLs?

If so, here's an example of one: http://centralpetz.com/content/blogsection/4/26/
Each page also has keywords in the title at the top of the browser.

Should I just keep the joomla pages up and redirect them to the new site?

[Pierre M.]

If I understand well, you have :
old Joomla URLs : /content/12/34/
new CMSms URLS : /solutions/services/firstoffer(.html)

Moreover I suppose your content has an oldnew mapping.

I think the mapping should be implemented has 301 ("permanently moved") redirects at the webserver level to instruct bots that the well ranked content at /old is now at /new. See http://httpd.apache.org/docs/2.2/mod/mo ... tpermanent for an Apache mod_alias example.
RedirectPermanent /old /new
Lighttpd should work somewhat the same.

So both CMS should stay installed together for a while, the time all bots have learned about the new URL scheme.

PM

PS : edit : I hope you have less than 50 URLs, because you need one redirect line for each...
PPS : may be joomla has an integrated "moved URLs" feature, as CMSms. See Joomla manual.

[Silver]

Thank you, I'll try the 301 redirect.