hi DP members yesterday when i search on google for one keyword my site was on top.but today at morning when i search for the same keyword i can't found it even on 10th page.i had checked that is it indexed or not but it shows that not indexed. how can it possible??? my site was indexed yesterday and google sows not indexed today!!!!!! is it possible??????? why?????? what is the solution of this problem?????? thanks...
There is no way to give you a correct answer without knowing the URL - and even then it would likely be an educated guess. Google has many different data centers and each can be in various stages of updates. It possible you are ranking well on one of the data centers that has been updated and when you tried later, you got a different data center. You can use this tool to check different data centers. http://www.mcdar.net/Q-Check/datatool.asp
i had checked it on different data center that shows my site but not on mine my domain name is www.rimonabantonline.org
Different data centers have different results and also update at different times. You should just it a day or two and see what happens. I wouldn't make any changes until then.
recheck your site if it complies with Google quality guidelines? If yes then file re-inclusion request from your sitemap account.