# 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