when i search for a keyword, one day google shows my site and the next day it doesnt. To be more precise, for the keyword "afghan music" my site sometimes comes number 3 and sometimes you cant see it anywhere. my site is afghanan.net/music by the way. Do you guys have any idea? I try it from home and my work and sometimes my friend's house but same thing. one day its there and then its not.
Search results are always changing, this is how search engines work. You also might be recieving data from different data centers which would provide different results.
ssandecki is right...Google updates its SERP rankings on regular basis and sometimes different data centers show different results. That's the most common reason as I know.
Search results for new sites always change, so you need to build lots of high quality back links for your site
My site is there since 1999. I have quite a lot of backlinks. i understand the datacentre issue that you guys mentioned but what about using the same ip address in different time periods?
No issue with that, unless you are again pulling data from different data centers at different times.
true. i got different results when i searched for the same keyword on google.com.af and google.com.pk interesting
google made much modification these days. I don't know why, but the sites keep falling and rising up day by day.
As much as you can. The more backlinks you have in your site the better to do in SERP. He says that his site was up since 1999.