15 principles of external chain quality standard

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Do outside the chain is stationmaster friend most hard thing, and this kind of hard behind, you do outside chain still not necessarily get search engine recognition, sometimes even counterproductive. So, what kind of outside chain is high quality outside the chain? Based on years of experience in the chain construction, combined with the recent SE algorithm to adjust the weight of the external chain, summed up the quality of the chain construction standards, a total of 15, here with you to share:

1, PR is greater than 3 of the link. The higher the better.

2, outside the chain page related. Now SE has increased the weight of content dependencies, and believes that the relevance of the external chain is the same.

3. Permanent one-way link. This is the best, attention, is permanent.

4, the chain must be the only page, can not be under the same IP.

5, the outside chain page must be static page.

6, must be the text outside the chain, not the picture.

7, outside the chain page must have more than two pages to point to it, the chain of its pages can not be the same IP.

8, outside the chain page must be in Google and Yahoo have snapshots, and included more than 45 days.

9, outside the chain page can not have more than 20 outbound export links.

10, not redirected, JavaScript, jump JS, Cache, Ghost page, Hidden link, frame page.

11, not mirror site, link factory.

12, not blog, comments, forums, newsgroups, classified information, article submission station, mirror station, link factory, Self-Help link program, message book, by K station. This hope to arouse the attention of webmaster friends. Because there are many webmaster believe that the so-called blog, forum mass can bring miraculous. In order to verify this argument, I recently to the small station www.cf8cf8.cn many blog mass, the final effect is passable, even by the search engine down the right. So it can be inferred that the construction of the outer chain by mass is outdated.

13, outside the chain site did not participate in the Exchange chain, or link factory. GG has repeatedly punished this link factory, so be sure to use it carefully.

14, not hidden links, flash links, rich media links.

15, not by search engine Google included in the special index library links.

If you can reach the above 15 principles in the construction of the chain, congratulations, this is the beginning of the perfect SEO.