seo and affiliate marketing blog

Host Crowding Facts
In an earlier article on SEO Theories and Fact I went over how Google filters some websites based on host crowding. We know host crowding is a fact. It is stated in Google’s own FAQ’s about their API. You can read about the Automatic Filtering they do here:
http://www.google.com/apis/reference.html#2_3

Now, because they don’t exactly say how they filter for Host Crowding. We can only go with different theories.

SEO Theories on Host Crowding Filter
Some theories are they filter by Class C IP (this is the most popular one). Some are they do it by whois. Another is they do it by nameservers. Some even say by all of them.

Static IP
From my own experiences with Google and their host crowding filter from years ago, it seemed like they did it by IP. So if you shared an IP, all you had to do is get a new static IP for each domain. For the past year, this has not been enough.

I believe they filter somehow by class C. Now don’t panic. It doesn’t mean if you have 10 sites that they are only going to list one based on what the API Faq’s say. They are looking at the results. So if you have 10 different sites, all going after different niches or themes, then you probably have nothing to worry about. However, linking within your own 10 site network probably won’t do much for you (we will get into that more with link building).

Whois or Nameservers
Now this one is interesting. Google recently became an ICANN Accredited Registrar. TDavid mentions this at Make You Go Hmm blog on Google and MSN. This leads me to believe they may in the future add this to their filter, but I don’t believe they do this already. But it sure looks like they may want to learn more so they can. But then again, maybe they will start letting you register domains sometime.

Multiple Class C IP Solution
This solution by far isn’t easy to get. It takes either breaking up your domains with many hosting companies, which usually cost more money or finding one that has many servers or many class C’s. This week, I was lucky enough to find a hosting company that has multiple Class C IP’s available. Not only that, they will also have muliple nameservers available.

If you are interested in getting on the priority list, contact tanya@overthemark.com. Let me know how many Class C IP’s you are looking for and anything else you may require.

As soon as they have the packages setup in the next week or so, I will post the information here for everyone.