we do when optimizing a Web site, often with less included than without the www www Web site. Web site ranking will also appear such a situation. Actually happen is not unexpected. There are several major reasons:
1, we all know weight higher level domain name of the Web site. It is a domain name without the www. Is the second-level domain name with www. So when the page is included, Baidu indexed without the www in General. Just like my friend, a new station www.***.com, just apply for domain name: Baidu submitted yesterday, we plan to take a look at include:
can be seen from the top, although only Baidu submitted one day, without the www site has been compiled. Not included with www.
2, the second cause is the issue of multiple second-level domain name
first we said, is a domain name without the www. If your site also has other second-level domain name. Then, when the query includes may query is with www, and included the sum of all the domain name without the www. If your query on the www, then query is included with www, no other second-level domain name.
3 understanding of the preferred domain name, search engine
the problem can be understood. When we make the website domain name resolution, usually at the same time resolved with www and without www. Description of the two domain names can visit our website at Home. In the promotion if you are mainly engaged in without the www: for example, outside the chain is also without the www, search engines may think that your website is without www to the preferred domain name. This is why a result indexed without the www.
how to avoid the above situation?
1 before, do Web sites, when parsing a domain name, only resolved with www, so that our website corresponds to only one domain name. That is with www.
2, doing the 301 redirect. Is redirected to the www without the www. Note it is best to do 301 redirect
3 total station, in the chain is an absolute address. This is to try not to appear without www URL links.
4, promotion in the world with mainly with www. For example, when we do outside the chain, with only of www links. This can boost the search engine to take as the preferred Web site www.
reproduced please specify source: Jinan SEO www.heheseo.com
