Roll out new site design all at once or section at a time?

[johnhh]

We have a new design to roll out, crisper and clearer. Would it be best to change all the url's at once, or slowly over time. We have tested a few pages which jumped up the SERPS a few places.

The actual URL's will not change, but there are some new sub-pages. Any thoughts in this age of Panda and Penquin ?

[dethfire]

Do that is best for your users.

[johnhh]

@dethfire
We are already averaging 5-6 pages per visitor ( since we added the trial sections ) We got hit by Panda in 2011, we only survived as an entity due to repeat visits.

The new designs are cleaner and more up-to-date, we started in 1997, and the last re-design some years ago was a disaster ! Hence my caution.