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Today in A5 and seowhy see two articles on the chain is maliciously modified reprint link or their own link error, spiders can not through the chain normal access caused by 404, the original title below interested friends can check:
"404 error in the end can be through the 301 redirect solution"
"Talking about the harm of using 301 redirects to transfer 404 pages into one's own outer chain"
I think the two authors have a point, I am a newly learned, now on the 404 and 301 is also superficial understanding, we meet this situation how should we solve? Do we really lack that weight? About 404 errors, Google Webmaster tools have a clear hint:
In general, 404 errors do not affect the ranking of your site in Google, so you can safely ignore these errors. For example, if someone had intended to link to your site but had lost the wrong address, a legitimate misspelled URL (such as www.example.com/awesome spelled Www.example.com/awsome) would appear. Instead of returning a 404 error, you can redirect the misspelled URL 301 to the correct URL and get the expected traffic through the link. You can also make sure to help them find what they want, rather than just show "404 Not Found," After you have directed users to 404 pages. However, we only recommend that you take this action if the error link produces a higher flow.
Soft text reprint is really important, but we also hate others in the reprint of the time without links or write links, but from the user point of view, many people do not pass the link to the reprint to visit the site we envision visitors to arrive, many times the link is only one of us to increase the chain of a way, But rarely do we think of the effect, do not add 301 Redirect, this is a large part of the search engine to do, for the user has not been fundamentally resolved, unless you do anchor text, but also reduce the vote on the site.
For 301 redirects outside this station, I feel no need, and may backfire, in the final analysis, this is a professional public morality problem, others reproduced your no link, or write links that is someone else's thing, to join the daily others are reproduced to write a suffix, do you want to spend a lot of energy every day to do 301? This is a problem with the mechanism, the 404 that Google says is for users, user input error URL when 404, and often because of this URL generated 404, we have to do 301, outside the chain to do 301 actually really not necessary, we might as well spend some time to do outside the chain.
Optimization is to be considered from the user, not simply to cater to search engines, and 301 of search engines need time to respond.
{Quote The author's words: Sadly, the friend saw only one, but did not see the second. When we do SEO, the official information is very important, many details are hidden in it, it takes a lot of time to read and understand carefully. }
In the final analysis, we still have to from the user point of view, soft paper with the chain, many times we increase the chain of a way, if not celebrities, it is difficult to play a drainage effect. A lot of people, including me, are tired of that way, afraid to click into a virus-infected site, or a website full of ads.
Reasonable use of 301, how to set 404 to increase the user experience, search engine may be a fool, but the user is not.
The above is only the author's personal point of view, about 301 and 404, the main to grasp the degree, can not abuse, can not be used.