What are the factors that affect the external chain instability?

External chain instability what factors affect the Seoer site analysis is as follows:

1, often modify the anchor text outside the chain. This should be a lot of webmaster overlooked, outside the chain anchor text modified, http://www.aliyun.com/zixun/aggregation/37805.html "> Search lead will be the previous sentence for invalid link, because and spiders previously included not the same."

2, the external chain release platform instability, this is caused by the chain instability the most basic reasons, if the release platform can not open, when the search for the big update, the natural resulting from the chain will become invalid links, will be deleted.

3, often modify the links to the chain. The same changes to the link will let the chain appears unstable, originally is the first page of the link into the page, the natural will appear the original link was searched for invalid, after all, even the original link does not exist.

4, the purchase of friendship links suspended purchase. This is also a common reason for the instability of the outer chain.

5, outside the chain release platform is included in the drop or is included in the page is deleted, this situation is common in the chain from the forum, once you have their own outside the chain of the post is deleted, its external chain is also ineffective.

6. Use the software to brush out the chain. This outer chain is the most unstable, once the search lead found is the brush outside the chain of natural will be given the most serious punishment, after all, this has affected the search for the nature of the requirements.

7, the quality of the chain is low and is searched for the deletion. Common in from the Forum, blog, query site, such as outside the chain, these outside the chain of quality is the lowest.

8, from the search and ask the outside chain, we all know now search and ask to do outside the chain of its jump code, although some outside the chain can also be included, but a lot of it was deleted, the author of the site from the search to ask the previous 10,002, now only 6,000.

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