From some last few days i am experiencing some frequent keyword ranking changes for my site which is http://www.imobispy.com/ with keyword whatsapp spy. Today it is ranking on the google's first page at 8th number. When i was checking the ranking of my site with keyword whatsapp spy yesterday and also from last few days my site was not ranking at all and when i started the work for it it was on 3rd page of the google. I don't know what exactly happend. Anyone have idea??