Hi,

I'm wondering if someone has experience of this.

I am about to redesign my site and as part of the process, I am moving to a new product search system, the effects of which will potentially be that the query strings for searches may be slightly different.

As a rough (and very much simplified) example

Old style : search/?keywords=Something&category=150&sort=0&sort=1
(sort was in twice, which I know is bad)

New style: search/?category=150&keywords=Something&sort=1
(same parameters, but different order and duplicate removed)

The old style will still work with the new system, but all future urls will be in the new style.

I know I could redirect the old search to the new, but in my experience with other sites, this has had a very bad effect on search results.

So, my question is, would retaining both styles cause duplicate content issues?

I would appreciate your feedback

Thanks,

Steer