If you are considering a re-design of your Web site…Don’t just think about the new colors and graphics and layout, but also be aware of how the new page structure will impact your search rankings, bookmarks, and inbound links.
There are many ways to overcome problems, and the goal is to plan for any problems in advance.
Another Bonus Tips :
FACT: Did you know that using your keyword phrase in heading text is still influential? Of course you did. But did you also know that there is no difference between the relevancy influence in H1 H2 H3 H4 and H5?
Tip: Don’t over-use the H1 heading tag.