In the past, I used to believe that it is only the Page Rank or PR update issue of Google is a pain in the head. I never realized that the same thing could also be said true about its SERP. Generally, the SERP of Google keeps on changing and this is what I have to find out the hard way. My website has already attained a very good SERP standing but recent searches conducted by me revealed that it was thrown to the bottom pages. I did an investigation and found out that my website that has been renamed was still classified under the old domain. It took a lot of effort from me to get everything back to normal.