Arguments over opinions are also SEO website optimization A very important link in the work. No one can say for sure that their understanding is correct. Only some information disclosed by the authorities and conclusions obtained through data analysis can be used to prove the correctness of their ideas and theories.
The SEO industry should have the spirit of questioning and the ability to think independently. Today, I saw an article on webmaster's website, "Talking about the harm of using 301 redirect to transfer 404 pages to your own external chain", which refuted the view in the previous article. I think it's very good.
It is found that the author misunderstood the meaning. So I wrote another article to clarify the views and read the article carefully. And introduce the function of 301 redirection.
1. First of all, I made clear two ideas in the article "Using 301 redirect to convert 404 errors into website external links":
The article does not mention any examples in the 301 homepage or other pages. 2. The article tells about redirecting the 404 error URL back to the original URL through 301. It describes the possible URL misspellings, link addition errors and even intentional wrong URL behaviors in the process of linking from the outside (website B) to its own website (website A). Instead of 404 errors presented by website A itself
Those who have doubts can read it carefully again. Now let me refute this friend's point of view (the blue word is the point of a friend who has refuted). The original text has always been there.
Refute the first paragraph
The 404 error in the external chain pointing is attributed to Beijing website production This sentence caused by the outside is beyond reproach, the original author. However, the presentation of 404 errors is also due to the order of their own websites. Since they are presented, there is no way to avoid them. For example, there can be many 404 pages with the same suffix on the webmaster's online page. It is OK to add 1.html2.html directly behind them, but if someone tries to link to such pages in the form of external links, It also brings links to the website, and that's all. At most, one 404 page will occur, and there will be no other
It is not necessarily the internal order of the website. A spider crawls to its own website (take website A as an example) through an incorrect URL of an external website (take website B as an example), which also causes 404 errors, and the website presents 404 errors. That is, the wrong URL results in the wrong page.
As long as the page does not exist in the process of crawling along the URL, the spider will not care whether your link URL exists inside or outside the site. A 404 error will be logged.
At this point, the operation status of Google Administrator Tool "Grab Errors" – if you can't find one column, you can clearly see that 404 errors are classified by Google“ Internal factors in sitemap) and Link to your website page).
Including“ The domain that links to your website page refers to the URL that links from website B to website A.
Refute the second paragraph
Want to directly reverse the weight of this outer chain, and the original author means how to master the weight of this aspect. Instead of letting go, here, the author also has his own point of view“ //www.xxxxx.com/rich-snippets.htmlGFQ This kind of external chain links to 404 pages. If you 301 these pages, this situation is the same as the situation where there are a large number of 404 pages in the website, and then you directly 301 404 pages in one page; So if your website has 404 pages, in order to prevent the loss of these weights, do you want to put all these pages on the 301 homepage? This is totally not in line with the requirements of search engines. If you want to know clearly, you can understand more by Baidu's "404 page 301 home page harm".
Obviously, search engines have a clear distinction between "own behavior" and "external behavior". Take link construction for example, first. It is clear to everyone that the effect of the inner chain and the outer chain on weight is different. The core idea is that the external chain is beyond the control of the webmaster, while the internal chain can be set by the webmaster. Although in the development process of the search engine, the factor of "external chain that can be controlled by the webmaster" (that is, the common external chain construction) is presented, whether controllable or uncontrollable, there is a clear idea that no one will publish the correct URL on the premise that other people's websites can, However, sending the wrong URL causes the user to be unable to access his website normally or the words "This page does not exist" appear on his website.
The original 301 page is still the 301 homepage. I don't want to say more about this. Everyone can understand me in the original. What I want to say here are some signals of how search engines identify the source of the original text:
1. Where does the search engine first see the content
2. The trust of the domain name where many of the same contents are located
3. Where are the most links (the inner link in the original text)
4. Whether the copy is linked back to the original source (copyright link)
Unable to get a good ranking. Many authors also complain about this. But I can use 134 signals to correct this error. Due to the existence of the second signal, many original authors have published or reprinted content on other websites.
But Google has been able to quickly and accurately identify the source of the original text. This benefits from the above three items. Baidu has not done a very good job in this respect because of the factor of "whether the copy links back to the original source". It is also one of the purposes of using 301 redirect to convert 404 errors into the external chain of the website. There is another purpose that you can see is to transfer weights.
Reasonably redirecting an incorrect URL that users cannot access to the correct URL through 301 will also help the user experience. I also saw this sentence in "Grabbing errors in Google Administrator Tools". last.
Because the page it points to does not exist, Google bot cannot crawl the URL. 404 will not affect your website's ranking in search results, but you can use it to improve the user experience.
Or redirect through 301. It is not believed that the user experience can be improved after shielding. The robots.txt mode can only improve the spider experience. Because after the user clicks the wrong URL, the only way to solve the 404 error is through robots.txt shielding. You still visit a non-existent page and see 404 errors.
Refute the third paragraph
Instead of returning 404, problems may occur. First, directly copy the original words "If the code other than 404 or 410 is returned for the non-existent page (or the user is redirected to the home page and other pages), it is equivalent to telling the search engine that the actual page can be found through the URL. As a result, the search engine may grab the URL and index its content. Because Google bot has to spend a lot of time dealing with non-existent pages, it may not be able to quickly find your website or frequently visit these websites, nor can it frequently visit these websites, thus affecting the amount of content crawled from your website (in addition, you certainly do not want your website to often appear in the [file not found] search query). This is the original words of page 404, If you do not continue to jump to the wrong page according to the requirements, the possible situation is that a large number of the same page, the same title, the same description, the same content, etc. appear on the website, and then this is the story between different URLs and the same content. What will happen in the future? You can go to Baidu and find it on googl
Don't forget to extract another paragraph: since the friend who refutes mentioned the googl administrator guide.
404 errors will not affect your website's ranking in Googl, generally speaking. So you can safely ignore these errors. These errors are usually caused by spelling errors, configuration errors (such as links automatically generated by the content management system) or Googl's efforts to identify and grab links in embedded content such as JavaScript.
Please click the relevant website. In the error dialog box, check the source of the invalid link. Click the link from the following page tab. If the relevant links come from your website, please repair or remove them. If these links come from external websites, you can use these data to improve the user experience of the website. For example, if someone intended to link to your website but entered the wrong address, a misspelled legal website will appear (for example, www.example.com/awsom is spelled as www.example.com/awsom. You can redirect the misspelled website 301 to the correct website and obtain the expected traffic through the link, instead of returning 404 errors. You can also make sure to help the user find the content he needs after directing him to the 404 page, instead of just displaying "404 Not Found But, it is only recommended that you take the above measures when the wrong link can cause high traffic.
Source link: //support.google.com/webmasters/bin/answer.py?hl=zh -Hans&answer=2409439
But I didn't see the second. When doing SEO, I'm sorry that this friend only saw one of them. Official information is very important, and many details are hidden in it, which requires a lot of time to read and understand carefully.
Many settings and descriptions in Google Administrator Tool are reasonable, but some SEOs are unwilling to understand them. Like the internal and external causes of 404, in fact. It is also reasonable to distinguish them in the item of "catching mistakes", rather than doing it when you are idle
Summary:
At the same time, open up their own ideas and methods of problem analysis. But you need to make sure that the knowledge you learn is advanced rather than stale, otherwise your ideas will be easily misled. As an SEO, you need to absorb a lot of knowledge. This will lead to bad results.
This article was published by Beijing Website Construction Company Shangpin China //www.glbuys.com/
