In SEO to do outside the chain need to pay attention to what

First of all, I would like to say that I am not saying how to do outside the chain, how to do outside the chain and other issues. I want to say is to do some of the weight of the chain problem. This is the result of the experiment. SEO The most important thing is the actual combat, the atmosphere can not become the climate. Then do the outside chain to pay attention to some above. Two

First

The difference between a text link and www

Here is the word connection, I think we all understand is called anchor text connection. So what is the difference between the anchor text link and the WWW direct URL link? So in real life, we should do either of these links. First of all, I want to clearly understand that the different roles of these two links, anchor text connection is for you want to do the keyword link, and the URL is a link to the site's homepage weight. In the process of doing SEO. Both types of links are required. Generally for snapshots are not very new, the experiment proved. Do more than the weight of the first page connection effect is greater than the anchor text connection. The reason is that any one site snapshot is a symbol of one station weight performance, when a station snapshots are not updated. Suggest at this time to do home page URL link. Once added the first weight, update the snapshot. Then for the popular keyword, or stay anchor text connection than you blindly to do anchor text effect is much higher.

Second

Leave a domain name and level two domain name problem. Explain it first. First-level domain name and two-level domain name definition is what, popular words, a domain name is not with the WWW, and the two domain name there are many, but the real life in the two-class domain name is with the WWW, this two-level domain name relative to the site of the other two-level domain name Then in the process of doing the chain, is a good domain name or two-level domain name with the www good. There is an absolute answer to that. If you are doing a domain name, then naturally you do outside the chain to leave a domain name of the connection, if you do is a level two domain name in the www. Then stay with the www. The best approach, of course, is 301 redirects. 301 redirect is when we enter a domain name will automatically jump to the generation of WWW domain name above, so that the weight of the first level of domain name will be concentrated on the generation of www above. Such a level of domain name outside the chain more. First-level domain name weights up, the WWW domain name weight will naturally be shared.

Above said is the small bear stationmaster to http://www.gangcb.com website summary to do outside the chain need to notice what? I'm a medical. Welcome the medical profession gathers the exchange qq844288155