Today we are going to look at SEO from the server side and what considerations you can make when purchasing a domain and how you link build.
We are going to look at C-Blocks first. Next week, we'll look at TLDs.
The IP c-block is simply the third set of numbers in an IP. Such as 173.194.35.163 takes you to Google.com, and the c-block is 35. Why does this matter?
When you are out with some friends and two of the couples recommend a restaurant, you consider it a good recommendation, but really only coming from one source. The husband and wife almost vote in a block. You would think their taste will be similar , or one would influence over the other. But if you heard the recommendation from that couple, and some people at work, and some people at the coffee shop, you would consider this to be an excellent recommendation as none of the parties would have influence over the other.
Restaurant recommendations or inbound links into your website, either way, you want a wide variety, and Google wants the same also. If you have 100 out of 150 inbound links coming from the same c-class, they are coming from the same hosting service and from the same web server box. (Just like the network you have at home or work. Each computer gets its own IP address) This may very well be innocent, but it could also could be manipulation. People don’t have 150 different hosting accounts, so the likelihood of all 150 inbound links being generated manually for the sake of manipulation is very hard.
With that said, hosting companies will have several c-blocks, so Google will also consider from what hosting company do these links come from (each hosting company is assigned a set of IPs) and from what State these hosting companies are in. The concept here is that it is much harder to manipulate links if they come from different c-blocks, and different hosting companies, from different States.
Why does this matter to you? When you build links organically, it does not matter at all. That is to say when you are not buying them, or you are not placing blog comments. When this does come into play is when you are buying links from directories and that directory has 20 other directories you can buy from. If each of these directories is on the same c-block, or even next to each other, I would consider other directories first.
If you are a web designer and you link all your clients back to your website and all these clients are on the same c-block or nearby, that could penalize you a bit. How much? Hard to say. In these cases, have several hosting companies that you trust at the ready, or choose bigger hosting companies that would naturally have several c-blocks.
To test your IP try http://web-sniffer.net/ Remeber, next week, we'll look at TLDs.
Image Reference: woorank.com
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