Online now enriched with a large number of the outer chain of low-quality resources, link farms, independent exchange links, a lot of sense outside the chain of low quality google are neglected, often we find some resources outside the chain feel very happy, but the actual effect is not too good, in general, check the syntax of a site is outside the chain link: web site, or linkdomain: Web-site: web site, may I ask who the next master of you, how to accurately check a Web site is another site backlinks , and so that we can efficiently check out google which links resources are recognized, which is of no use low-quality link resources If you use the link: URL, or linkdomain: Web-site: URL syntax such as little more than a dozen pages out of as many as dozens of pages, one by one to check, simply inefficient, please enlighten me master them, thank you first.

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