Do SEO people know that the content of the emperor, outside the chain for the king of the truth. Today the tip of the iceberg and you talk about the chain of inquiries, the outside chain mainly refers to Yahoo outside the chain.
First, through the major webmaster website inquiries
Webmaster site basically provide reverse link query, such as webmaster Helper, webmaster tools are relatively good. Select the chain query can jump to http://sitemap.cn.yahoo.com/, you can directly enter your URL, you can know the number of Yahoo back chain.
Disadvantage: can only display 1000, and cannot be the same domain name link to heavy.
Second, through Yahoo search engine query
Yahoo search engine through the link command query, shaped like link:http://www.admin5.com. Just this query results and webmaster site query results inconsistent. In the case of large deviations, I am personally webmaster site results for reference.
Disadvantage: The query results are normal, sometimes not normal.
Third, through the Google Administrator tool query
Google administrator tools personal feeling outside the chain is more complete, you can show links to your site all the fields.
Disadvantage: Do not show the specific link to the URL, only the top-level domain name display.
Four, new link query through the word-chasing network
The Yahoo back chain analysis of the word-chasing web has a new link query feature that shows the new link URLs from the previous query to this query. Personal feeling good, can be used as a reference to the chain effect.
Disadvantages: The display results are less, to the advertising chain to receive records faster, blog and forum signature effect is poor.
The above four kinds is my personal comparison often use Yahoo outside the chain inquires the way, each has the merit and disadvantage, each other is the reference. In general, Yahoo outside the chain of more emphasis on anchor text, to link links, Web site navigation, forum signature, soft article submissions.