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We are avoiding the death of the link, first of all it endangers the search engine to give the weight of the site, followed by Spider Links Crawl page, a lot of dead links will make spiders have a sense of being deceived, affecting the page included in the problem. But our site revision often encounter a bunch of dead links to deal with, then how should we deal with it? The author will share with you the experience in this field with his own practice:
One, the robots shield or 301 jump
In fact, this method is a little impractical, although it is indeed one of the methods. But if the page included tens of thousands of, hundreds of thousands of or even millions of do we have to manually set it. Because of the revision, the site originally included page level distribution is not the same, we can not directly shield a level. This makes this method the most clumsy and time-consuming method.
Two, 404 Page setup
This method also belongs to the mainstream, as originally included in the page, all the dead links are converted into 404 error pages, and then set 404 pages, guide users into the revised web site, so that some of the original loss of flow to produce a return effect. Of course, we'd better let the visitors click to enter the site, 404 pages take 10 seconds countdown jump. about why it is best to let users click on the link back to the new site and not directly to the new site, this is a renovation problem, there are many online articles on this, I will not say much. The 404 page settings can be taken as follows:
Third, to replace the old, the internal chain interoperability
After the revision, the website should insist to update the fresh content, to attract the spider to crawl, thus lets the spider crawl the new content at the same time, can crawl the old content to replace. We all know that spiders usually take the breadth first and crawl the site in the form of hyperlinks. Then we keep the new content, reasonable in the chain construction, step-by-Step guide Spiders Crawl the content of the site, so as to achieve the included page, delete the page before the revision effect.
In general, the best approach we take is the combination of the second and third steps. This allows the revision after the flow loss is not so serious and can slowly restore the website weight after the revision. This article by the Fairy's pocket http://www.okautumn.com finishing edit, reprint please keep the source.