site was gone for hours today. cleared cookies, tried different computers. not in top 100. nearly gave me a heart attack. back to normal now. I dont think this is related to the mobile update because 1) I am on desktop 2) site is mobile friendly. I think I am being specifically targeted because when site was gone, the rest of the serps looked exactly the same. I think my PBN has been discovered, had some hits from mountainview IP. should i be worried? update: gone again. update: not a google dance because I was already #1, there is no reason to dance.