The 404 error is a standard HTTP response code indicating that the server was unable to find the requested page. Often the reason is an incorrectly entered URL or a page that has been deleted or moved. It is essential for website owners and online marketers to understand what this error means and how best to address it.

Within the world of online marketing and website management, a 404 error is also known as a "dead link" or "broken link". A frequent presence of these errors can affect the SEO value of a website negatively. It is therefore important to regularly carry out a SEO analysis run and check for broken links.

To the user experience To improve, experts recommend using a custom 404 page create. This allows visitors to easily return to the main page or other parts of the site. By internal link structure and breadcrumb adding navigation, the visitor can find his way back and frustration is reduced.