# Errors

SpeedVitals uses conventional HTTP response codes to indicate the success or failure of an API request.

In general, Codes in the `2xx` range indicate success. Codes in the `4xx` range indicate an error that
failed given the information provided (e.g., a required parameter was omitted, lighthouse test failed,
etc.). Codes in the `5xx` range indicate an error with SpeedVitals servers (these are rare).


## Example
**List of common errors codes:**

|  HTTP Status  |           Description             |
| ------------- | --------------------------------- |
|      401      |          Unauthorized             |
|      429      |       Rate Limit Exceeded         |
|      500      |      Internal Server Error        |
|      502      |     Server Under Maintenance      |