What is Google Dance

I just recently come across with problem about sudden change in our keywords ranking from Google search engine. It has been 3 weeks already and this problem is not going to get better as days past by. A friend of mine who is a former seo specialist about used cars told me that it could be a google dance.

Google Dance seems new to me because i have not read it in most seo forum sites like digital point nor seo.ph. As i interview her and read blogs about Google dance, I found out that it is simply a moment where Google update their data server, they are using back up server which has older index. The google data center switch from www.google.com to www2.google.com or www3.google.com.

Your keywords may vary according to pages for almost 1 week and it should return by the next monday. Some said it is almost 2 weeks so i will learn it this coming monday.

Moving around the web to find more info in Google Dance, i found this Google dance tools which used to compare the SERP according to each 3 data center. All you need to do is to input the keywords and see if the result varies.