hi i have 3 websites that are fluctuating like crazy all the time. I dont know if it's just sandbox, dance, or whatever, but it's happening all the time. they are usually in page 1 for 2 weeks or less then gone to sandbox for 2-3 weeks then back to page 1 and back to sandbox and so on... I dont think domain age is an issue here as 2 of these sites are already 3-4 years old. I wonder what is causing this and what can I do to permanently back to page 1 (apart of continuous link building)?