HTTP status codes
(the 4xx and 5xx varieties) appear when there is some kind of error
loading a web page. HTTP status codes are standard types of errors so
you could see them in any browser, like Internet Explorer, Firefox,
Chrome, etc.
Common 4xx and 5xx HTTP status codes are listed below with helpful tips to help you get past them and on to the web page you were looking for.
Note: HTTP status codes that begin with 1, 2, and 3 also exist but are not errors and aren't usually seen. If you're interested, you can see them all listed here.
Common 4xx and 5xx HTTP status codes are listed below with helpful tips to help you get past them and on to the web page you were looking for.
Note: HTTP status codes that begin with 1, 2, and 3 also exist but are not errors and aren't usually seen. If you're interested, you can see them all listed here.
400 (Bad Request)
The
400 Bad Request HTTP status code means that the request you sent to the
website server (for example, a request to load a web page) was somehow
malformed.
Since the server couldn't understand the request, it couldn't process it and instead gave you the 400 error.
Since the server couldn't understand the request, it couldn't process it and instead gave you the 400 error.
401 (Unauthorized)
The
401 Unauthorized HTTP status code means that the page you were trying
to access can not be loaded until you first log on with a valid username
and password.
If you've just logged on and received the 401 error, it means that the credentials you entered were invalid. Invalid credentials could mean that you don't have an account with the web site, your username was entered incorrectly, or your password was incorrect.
If you've just logged on and received the 401 error, it means that the credentials you entered were invalid. Invalid credentials could mean that you don't have an account with the web site, your username was entered incorrectly, or your password was incorrect.
403 (Forbidden)
The 403 Forbidden HTTP status code means that accessing the page or resource you were trying to reach is absolutely forbidden.
In other words, a 403 error means that you don't have access to whatever you're trying to view.
In other words, a 403 error means that you don't have access to whatever you're trying to view.
404 (Not Found)
The
404 Not Found HTTP status code means that the page you were trying to
reach could not be found on the web site's server. This is the most
popular HTTP status code that you will probably see.
The 404 error will often appear as The page cannot be found.
The 404 error will often appear as The page cannot be found.
408 (Request Timeout)
The
408 Request Timeout HTTP status code indicates that the request you
sent to the website server (like a request to load a web page) timed
out.
In other words, a 408 error means that connecting to the web site took longer than the website's server was prepared to wait.
In other words, a 408 error means that connecting to the web site took longer than the website's server was prepared to wait.
500 (Internal Server Error)
500
Internal Server Error is a very general HTTP status code meaning
something went wrong on the web site's server but the server could not
be more specific on what the exact problem was.
The 500 Internal Server Error message is the most common "server-side" error you'll see.
The 500 Internal Server Error message is the most common "server-side" error you'll see.
502 (Bad Gateway)
The
502 Bad Gateway HTTP status code means that one server received an
invalid response from another server that it was accessing while
attempting to load the web page or fill another request by the browser.
In other words, the 502 error is an issue between two different servers on the Internet that aren't communicating properly.
In other words, the 502 error is an issue between two different servers on the Internet that aren't communicating properly.
503 (Service Unavailable)
The 503 Service Unavailable HTTP status code means the web site's server is simply not available at the moment.
503 errors are usually due to a temporary overloading or maintenance of the server.
503 errors are usually due to a temporary overloading or maintenance of the server.
504 (Gateway Timeout)
The
504 Gateway Timeout HTTP status code means that one server did not
receive a timely response from another server that it was accessing
while attempting to load the web page or fill another request by the
browser.
This usually means that the other server is down or not working properly.
This usually means that the other server is down or not working properly.
