My sites were doing good but past month they started were bouncing around like crazy(1st page then 3rd page back and forth) everyday and last week they disappeared. Note, they do come up when I search there domain name.
Here is the interesting thing, the sites all shared one Google Analytics account with 14 websites in it. 10 of the sites were same category and 4 were totally different categories from each other. All sites are registered differently and diff ip addresses. Most of the websites are linking to each other (not all but some are) and all the websites had the same Google Analytics user account id number in there html (example, UA1234556-1 for 1st site, UA1234556-2 for 2nd site, UA1234556-3 for 3rd and so on).
I am trying to understand if google penelized one site, did they automatically just group all the sites together because they have same Analytics user account number and the fact that they may have linked to each other and were same category ? Even the 4 website that are different categories and not linking to each other are gone for keywords.
Note,mMany of the sites are over 4 years old and have many backlinks. I have recently deleted all interlinking links between these site and removed the analytics code completely.
Should I submit a google request reconsideration? Any advice on what else I can do? Did this happen to you? Any advice is greatly appreciated, thank you.