As an essential means of SEO optimization, the important position of outside chain can not be replaced

Mentioned http://www.aliyun.com/zixun/aggregation/8989.html "> website outside the chain, I am afraid that the industry knows a few people, the same, outside the chain of sales increasingly hot." So for the site outside the chain of understanding, can be said to be "polarized." Recently, the controversy about the increase in the frequency of the chain, so that the site outside the chain again become the focus of people talk about.

SEO in the site to promote the stage of the webmaster are very clear to know how important the chain for SEO, because the chain can let the keyword rankings are promoted. So the webmaster frantically looking for outside the chain, but do not know to do outside the chain has a lot of attention.

The exchange of links between sites is a link between the site recommendation of a way, the link must pay attention to your link to the site is related to your site content, so that search engines in the search page can be linked to your link to increase a lot of weight. Otherwise the search engine also thought is the website hangs the rubbish advertisement and so on.

Website PR: Website PR is a website measurement standard, in the Exchange friend chain must pay attention to this aspect of the problem, avoid staring at the PR of the high and low ignore the PR output value, and the other side of the chain not more than 30.

Connection words: connectives can increase the weight and rank of relevant keywords. So it is best to link the links with the key words. This will remind the search engine to crawl the site to what kind of words more important. But avoid to a keyword in a short time to do a lot of friendship link exchange, so it is easy to lead to the keyword is k this aspect in Baidu is particularly serious, and Baidu even if you use their own station name to do the word in the short term frequently will also be considered artificial optimization, also will be K.

The snapshot of the linked party site, the number of records, domain name history is also very important. Snapshot required within three days. Included in the number of the better, and Google and Baidu included in the number of differences can not be too big. Domain history through tools can be queried, these are reflected in the site domain name in the search engine weights and friendly to a argued.

The other site is not to take the direct link do not change, many sites will use JS, and other code to jump to your station, this approach is tantamount to not give you the connection, but also will be judged as cheating, even linked to his inner pages are not counted, and for the inner page links also have little meaning.

The outside chain of the website, simply say is the referendum, the target keyword gets the higher the rate of the website, its keyword in the search engine ranking the more forward. Outside the chain as an essential means of SEO optimization, its important status can not be replaced, because many search engines will be outside the chain analysis listed as the first key element of the site, of course, the most important is the user experience, followed by the site's outside the chain. The image below is the latest Alexa ranking data, it is clear that Tencent's number of outside the chain (voting number) is significantly inferior to Sina and Taobao, why can be ranked second, we installed QQ software friends, in the mind are clear. If the QQ window is cheating, then the above figure is easy to analyze who cheated.

-Small remember Google because moved to Hong Kong, so the chain although not much, but google.cn turned a lot of traffic in the past, Google quit, Google has no traffic? The idea is wrong, and Google still has spectacular traffic. The most common external chain query commands are published here:

Www.baidu.com Search Domain:www.***.com

www.google.cn Search Linkdomain:http://www.***.com

www.yahoo.com Search Link:www.***.com/cn.yahoo.com Search link:http://www.***.com

The basis of link ranking--weight transfer algorithm

In the previous section, we briefly introduced the site's outside the chain, the search engine is how to carry out the relevance of the ranking of the page? In addition to looking at the Web page itself, the keyword density and keyword location, but also to see a more important element, that is, link popularity (or call it a link vote), the vote rate is high in other factors the same situation, ranking more forward.

You can search in Baidu "Bo hundred excellent" This word, the return of the search results are more than 800,000, obviously can not say that the top of the page is containing "Bo hundred excellent" the word more than the page, or in the title tag and other important positions appear in this word page. The page itself unilaterally how to say that you this page is the best, it is important that other pages how to evaluate you-link popularity. At the same time a pr=8 and pr=3 to you the chain difference is quite large, a page export links more, then the more people who divide the cake, give you the weight will be more and less.

But only the links themselves are not enough to get a good ranking of the pages, because they may not be related to the keywords users search for. As a result, the relevance of the link becomes an important part of the link popularity analysis, in addition to the site topic is related, anchor text appears the keyword is also very important.