What does 404 not found mean?

I believe many people will encounter 404. There are also many people who encounter 404 and don’t know what it means or how to solve it. Below, our PHP Chinese website will give you a comprehensive answer to what 404 not found means.

1: What does 404 not found mean?

404 is a status code returned by http. When entering a URL, the server will determine whether there is corresponding web page information based on the address entered by the user. If there is no corresponding information, it means that the user may have entered a series of invalid links, and the server will return a 404 status code to the user and tell the user No corresponding information found.

2: Why does the website appear with a 404 not found page?

1. The page on the server is deleted. When we publish an article, it is inevitable that it may be posted. Wrong. We will delete the article that was posted in error, and a 404 page will appear when you access it again.

2. It may be that the user made an input error, causing the link to fail to open, thus returning the 404 page.

3. Of course, some websites that restrict access will also display 404. We can use a proxy server to browse.

Three: How to solve 404 not found

##1. Specify an html page and put the 404 page Jumping directly to the html page is not good for SEO.

2. When there is a problem with the URL path rules of the content, we can point to a dynamic page on the server. In the page, we use 301 redirection, and then jump to the new page, and the server will will return 301 instead of 404.

3. Set up the 404 page in Apache. Setting up in Apache Server is relatively simple. As long as we put a string of codes in .htaccess, ErrorDocument 404 /notfound.php can be saved in it.

Four: The role of 404

It is quite necessary to set up a 404 page on the website, which can improve the user experience of the website and reduce the loss of users. Of course, the best Severe cases may result in search engine penalties.

The above is a complete introduction to what 404 not found means. If you want to know more about

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