Common HTTP status codes Cheat Sheet

1xx - Informational

• 100: Continue - Everything is ok so far

• 102: Processing - Request is being processed, no response available yet

2xx - Success

• 200: OK - Request successful

• 201: Created - Request fulfilled, new resource has been created

3xx - Redirection

• 301: Moved Permanently - Resource permanently moved to a new URL

• 302: Moved Temporarily - Resource temporarily moved to a new URL

4xx - Client Error

• 400: Bad Request - Server cannot understand and process the request

• 401: Unauthorized - Authentication required, user not yet authenticated

• 403: Forbidden - Insufficient access permissions to the resource

• 404: Not Found - Requested resource not found

• 410: Gone - Request no longer available due to intentional removal

5xx - Server Error

• 500: Internal Server Error - Generic unhandled server error

• 502: Bad Gateway - Gateway server got an invalid response

• 503: Service Unavailable - Server temporarily unable to handle request

• 504: Gateway Timeout - Gateway server didn't get a response in time