Oops, you got an “HTTP 404 Not Found error”. That means the page you are looking for cannot be found (unless you were specifically looking for this page, then congratulations).
What is a 404 Error?
A 404 error is a status code that indicates the page you are looking for could not be found on a website’s server. Either the link you have is wrong, or the website didn’t use a 301 redirect to redirect an old URL to a new one.
A video from TED about the history 404 errors, not to be confused with 808’s (which are much cooler).
Sometimes people make clever 404 pages, or sometimes you’ll get a generic blank screen with code like:
- “404 Error.”
- “404 Not Found.”
- “The requested URL [URL] was not found on this server.”
- “HTTP 404 Not Found.”
- “404 Page Not Found.”
FACT: A 404 error is one of the few mistakes that front end users see. It is, therefore, one of the most well-known errors on the web.
What Should I Do If I Get a 404 Error?
Don’t panic. Typically the content you are looking for wasn’t removed; rather a link was changed. You can use the site navigation or search bar to find the page. It’s polite to contact the site and let them know which URL is broken so they can also redirect the page.
What Other Error Codes are There?
404 errors are just one of many HTML error codes. Check out the list of common HTML error codes below.
List of Common HTML Error Codes From webmaster.iu.edu
|200||OK||Action completed successfully|
|201||Created||Success following a POST command|
|202||Accepted||The request has been accepted for processing, but the processing has not been completed.|
|203||Partial Information||Response to a GET command, indicates that the returned meta information is from a private overlaid web.|
|204||No Content||Server has received the request, but there is no information to send back.|
|206||Partial Content||The requested file was partially sent. Usually caused by stopping or refreshing a web page.|
|301||Moved Permanently||Requested a directory instead of a specific file. The web server added the filename index.html, index.htm, home.html, or home.htm to the URL.|
|304||Not Modified||The cached version of the requested file is the same as the file to be sent.|
|400||Bad Request||The request had bad syntax or was impossible to be satisfied.|
|401||Unauthorized||User failed to provide a valid user name / password required for access to file / directory.|
|403||Forbidden||The request does not specify the file name. Or the directory or the file does not have the permission that allows the pages to be viewed on the web.|
|404||Not Found||The requested file was not found.|
|405||Method Not Allowed|
|407||Proxy Authentication Required|
|413||Request Entity Too Large|
|414||Request-URL Too Large|
|415||Unsupported Media Type|
|500||Server Error||In most cases, this error is a result of a problem with the code or program you are calling rather than with the web server itself.|
|501||Not Implemented||The server does not support the facility required.|
|503||Out of Resources||The server cannot process the request due to a system overload. This should be a temporary condition.|
|504||Gateway Time-Out||The service did not respond within the time frame that the gateway was willing to wait.|
|505||HTTP Version not supported|