Google game or sand box?

hi,
I need help in SEO, i have been working on SEO for one website for the keyword "Profumeria" for website www.odomodo.it, It got indexed in google 2nd page in one week but now its no where in google.
Can anyone tell me the problem related to this?
I am still posting backlinks for it.
Suggestions are also required for this...
thank you

 

search your keyword carefully which domain you using .it or .com

 

I know.. I have checked everything, I am working on google.it ... I am so confused about this.

 

maybe its somewhere deep in google now, how old is your domain ? I think this is an effect of google dance !!!!

 

I check it.. I dont know how deeep lolzzz.. Seems like very deep , Domain is around 3 months old, but we havent been working on this domain from that time.

 

Did you cleared your cache before you check for the keyword for the first time..?
Try it and use a rank tracker to search the position of each keywords in search engines..

 

Well... I have downloaded new web browser just to check my ranking... For this I am using google chrome, What is this rank tracker?