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The website 404 error page returns the adverse effects of the 200 status code and the solution. Many novices are not very clear about this. In order to help you solve this problem, the following small series will explain it in detail for everyone. Those who have this need can come to learn. I hope you can gain something.

What is HTTP404 Error?

HTTP 404 error means that the link to the web page does not exist, that is, the URL of the original web page is invalid, this situation often happens, it is difficult to avoid, such as: web page URL generation rules change, web page file renaming or moving location, import link spelling errors, etc., resulting in the original URL address can not be accessed; When the Web server receives a similar request, it will return a 404 status code, telling the browser to request the resource does not exist. However, the default 404 error page for Web servers, both Apache and IIS, is crude, rigid, and user-unfriendly, unable to provide users with the necessary information to get more clues, which will undoubtedly cause user churn.

Custom 404 error page return status code

404 : The requested page does not exist (does not rule out the possibility that the link will be valid in the future);

410 : The requested page does not exist (permanent)

200 : The server successfully returned the page

302 : Temporary URL Redirect (Jump)

301 : Page not found

It should be noted that most search engines treat "404" and "410" status equally, like Google.

When the search engine gets a "404" status response when requesting a URL, it knows that the page no longer exists on the site, so it deletes it from the index database-of course, this deletion process may take a long time-and when the search engine gets a "200" status response, it considers the url valid and returns it to the index database.

404 Error Page Consequences of returning "200" status code

What happens if a custom 404 error page for a website doesn't return a "404" status code when the url isn't valid, but instead returns a "200" status code? Obviously, search engines will think that this "non-existent" page exists within the site, which will lead to many problems and affect the final SEO effect of the site.

Home page We need to check whether our 404 page settings are correct, here we recommend using http://seo.seowhy.com/http404/

If it is the above situation, it means that we have successfully set it up. Let's analyze the specific setting method below:

If the return value of your website is not this, there are many ways to solve this problem. Here is how to set up virtual hosts and independent hosts (IIS):

One. webhosting user

Virtual hosts can generally be set in the WEB management background, and can also be modified by the virtual host provider.

Did reading the above help you? If you still want to have further understanding of related knowledge or read more related articles, please pay attention to the industry information channel, thank you for your support.

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