How to solve the capture error in the Google administrator tool

I believe that many webmasters who have used the Google administrator tool have encountered the capture error prompt, because some content may have been deleted and cannot be opened now. How can this problem be solved?

The answer is to customize the 404 error page.

Network capture Error Report

Show URL: HTTP (0)-limited by robots.txt (0)-In Sitemap (42)-Not found (6,085)-inaccessible (249)-not tracked (0) -Timeout (0)

Not found (6,085): Details: 404 (not found ).

The 404 page is the page returned when the user inputs an incorrect link.
404 The purpose of the page is to tell the viewer that the requested page does not exist or the link is incorrect. At the same time, the user is guided to use other pages of the website instead of closing the window and leaving.

404 impact on seo
Custom 404 error pages are a good way to enhance user experience, but the impact on search engines is often not noticed during the application process. For example: if the server configuration is incorrect, "200" status code is returned or the custom 404 error page uses Meta Refresh to return "302" status code. A correctly set custom 404 error page should not only be correctly displayed, but also return the "404" error code instead of "200" or "302 ". Although there is no difference between the HTTP status code "404" and "200" for the accessed users, it is very important for the search engine. For example, on my cool dog download site, after the custom error page, many capture errors have been solved!
Generally, when a search engine spider returns a 404 status response when requesting a URL, it knows that the URL has expired and no longer indexes the webpage, and report to the data center that the webpage indicated by the URL is deleted from the index database. Of course, the deletion process may take a long time. When the search engine gets the "200" status code, the url is regarded as valid, and then indexed and indexed to the index database. The result is that the two URLs have identical content: customize the content of the 404 error page, which may cause the copy webpage problem. In addition, I would like to remind webmasters that, if it is light, it will be downgraded by the search engine, and the website will be destroyed if it is heavy.

So how should we achieve a good 404 page?
Although the default server error page can be changed. The following are some suggestions for making it easy for visitors to access the website.
Concepts to be followed:
Provides concise problem descriptions to eliminate visitor frustration.
Provide reasonable solutions to help visitors complete access targets.
Provides a personalized and user-friendly interface to Improve the access experience.
404 some incorrect settings on the page:
1. when the webpage content cannot be accessed due to a path change, you can define a 404 error in IIS to direct it to a dynamic page, on the page, use 301 to redirect permanently to the new address. The server returns the 301 status code.
2. Set 404 to point to a designed html file. The 404 status code returned by the page is displayed. Currently, idc providers basically provide the 404 setting function, which allows you to directly Upload File Settings. For a personal server, set the method in IIs: open IIS manager --> click the properties of the website for which you want to set custom 404 --> click custom error options --> Select page 404 --> select and open edit Attributes --> set to URL --> enter "/err404.html" in the URL --> return the URL and upload the err404.html page to the root directory of the website. You must select "file" or "Default Value" in "Message Type". This is very important, rather than "URL". Otherwise, "200" status code will be returned.
3. 404 points to a dynamic page, such as error. asp. If it is not set in the page, only the HTML code of the prompt is returned, which will result in the 200 status code returned on the page. This is incorrect. After the prompt content is displayed, add statement: Response. status = "404 Not Found", so that the page returns a 404 Status code. This method achieves remarkable results.
4. Set the 404 error page in Apache. Setting the 404 error page for Apache Server is simple. You only need to add the following content to the. htaccess file: ErrorDocument 404/notfound. php

In short, the 404 page settings are not only for SEO considerations, but also for the user experience. Please pay enough attention to them. For more information, visit: codoy 2010 or kugou forum.