HTTP Status Codes Reference

Quick reference for HTTP response status codes and their meanings.

200
OK
Request succeeded.
201
Created
Resource created.
301
Moved Permanently
URL moved.
400
Bad Request
Invalid syntax.
401
Unauthorized
Auth required.
403
Forbidden
Access denied.
404
Not Found
Page missing.
500
Internal Server Error
Server error.
503
Service Unavailable
Server overloaded.
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Quick reference for HTTP response status codes and their meanings.

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Frequently Asked Questions

?What are HTTP status codes?

HTTP status codes are three-digit numbers returned by a server in response to a browser or client request. They indicate whether the request was successful, redirected, or resulted in an error.

?What does a 404 status code mean?

A 404 (Not Found) status code means the server could not find the requested resource. This typically occurs when a URL is misspelled, a page has been deleted, or a link is broken.

?What is the difference between 401 and 403?

A 401 (Unauthorized) means the client must authenticate to get the response. A 403 (Forbidden) means the server understood the request but the client does not have permission to access it, even with authentication.

?What are 5xx status codes?

5xx status codes indicate server-side errors. Common examples include 500 (Internal Server Error), 502 (Bad Gateway), and 503 (Service Unavailable). These mean something went wrong on the server, not with your request.

?How can I search for a specific status code?

Use the search bar at the top of the reference page. You can search by code number (e.g., 301) or by name (e.g., 'redirect') to quickly find the status code and its meaning.

?Is this reference available offline?

The entire reference runs in your browser with no server calls required. Once the page loads, you can search and browse all HTTP status codes even without an active internet connection.

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