What are 404 errors?

[pharmasecure]

What are 404 errors?

[dennis123]

404 errors are considered one of the most potential impediments in the way to successful SEO. When a specific URL is renamed or becomes non-existent, any links connecting to that URL would result in 404 errors.

[Saravanan28]

The 404 error is what a webpage returns after a user tries to open a webpage that does not exist. The visitor may have mistyped the webpage URL or the webpage might have been moved completely. It may also be caused by your pages having an incorrect linking either internally or externally.

[thaichacha]

The HTTP 404, 404 Not Found, and 404 error message is a Hypertext Transfer Protocol standard response code, in computer network communications, to indicate that the client was able to communicate with a given server, but the server could not find what was requested.

[yuva12]

“Error 404” (or “Page Not Found”) – is a standard code of HTTP status that occurs when the server can’t find a document required by a user. Basically, this is a page that doesn’t exist.

[HosTechS]

404 error arises when a user visits a web page that doesn’t exist. Sometimes, the problem is on the website itself, and there’s not much you can do about that. But sometimes, the problem is one you might be able to solve—maybe you typed the address wrong, or maybe your browser cache is causing problems. Here are some solutions you can try.

[vistofacil]

Its a return for a page that does not exist.

[dombowkett]

404 errors are not found webpages which are deleted from the site without redirect.

[johnfernandis]

Of the many potential errors you might see on your WordPress site, Error 404 Not Found is one of the tamer ones. But that doesn’t mean it isn’t frustrating when you or your visitors try to browse your site and keep running into the Error 404 Not Found message.

[paulbrighton]

The 404 Error Page, known as "page not found," is an HTTP[S] standardized status code that indicates an established connection with the server but an inability to find the page in question. Excessive 404 errors negatively impact a website's SEO and are lost revenue opportunities when the user does not ultimately navigate to the website.

[mansi123]

it's mean is the webpage were you reach could not be an exit on the server.

[RH-Calvin]

A 404 error is an HTTP status code that means that the page you were trying to reach on a website couldn't be found on their server. The 404 Not Found error might appear for several reasons even though no real issue exists, so sometimes a simple refresh will often load the page you were looking for. The most common method is to retry the web page by pressing F5, clicking the refresh/reload button, or trying the URL from the address bar again.