I just noticed my site got de-indexed today. Its a 1 year old site, ZERO link building done. It ranks on first page by itself due to unique contents (paid big bucks for them). I checked google using site:mydomain.com and nothing shows up. I checked analytics and it was all fine till yesterday, traffic completely dropped. I thought my site got hacked but I scanned & checked, found nothing. I thought someone might be doing neg-SEO on my site, but i checked ahrefs, majesticSEO and google webmaster tools, nothing found neither. (in fact, it has less than 200 backlinks total over the past 12 months). I also thought someone hacked my site and done some cloaking on it. Tested by changing user-agent on my browser, found nothing. Everything seems normal. I visited some online cloak-checking tools, and it says none detected.. At this point, I am not sure what's going on. Could it be my hosting issue? Please help. Thanks.