Glossary

A 404 error, also known as a "Page Not Found" error, is an HTTP status code that indicates a webpage or resource could not be found on a server. This error occurs when a user attempts to access a specific URL that does not exist or has been moved, deleted, or renamed. When the server receives such a request, it responds with a 404 error code, signaling that the requested content is unavailable and the server is unable to fulfill the user's request

The primary purpose of a 404 error message is to inform users and search engines that the desired page or resource cannot be accessed at the provided URL. This helps prevent confusion and provides clarity regarding the unavailability of the content. When users encounter a 404 error, they understand that the webpage they were trying to access is not found, and it prompts them to look for an alternative or seek assistance. Similarly, search engines utilize the 404 error code to understand that the requested page does not exist, preventing it from appearing in search results

There are several benefits and advantages to properly handling 404 errors. Firstly, it helps enhance user experience by providing clear and concise feedback. Instead of being presented with a generic error message, users are informed about the specific issue, allowing them to take appropriate action. Websites that effectively handle 404 errors often provide helpful suggestions or navigation options to guide users to relevant content, reducing frustration and improving overall user satisfaction.

Additionally, proper handling of 404 errors can have positive effects on search engine optimization (SEO). When search engine crawlers encounter a 404 error, they understand that the page is not available and remove it from their index. This prevents irrelevant or broken links from negatively impacting a website's search rankings. By customizing the 404 error page with relevant information, links to important sections, or a search box, website owners can retain visitors and minimize the negative impact on SEO.

Monitoring and analyzing 404 errors can provide valuable insights for website administrators. By tracking the frequency and origin of 404 errors, administrators can identify patterns and potential issues within their website. This information can be utilized to fix broken links, update outdated URLs, or reorganize website content to improve overall accessibility and user navigation.