| Code | Name | Category |
|---|---|---|
| 100 | Continue | Informational |
| 101 | Switching Protocols | Informational |
| 102 | Processing | Informational |
| 200 | OK | Success |
| 201 | Created | Success |
| 202 | Accepted | Success |
| 204 | No Content | Success |
| 301 | Moved Permanently | Redirection |
| 302 | Found | Redirection |
| 304 | Not Modified | Redirection |
| 307 | Temporary Redirect | Redirection |
| 308 | Permanent Redirect | Redirection |
| 400 | Bad Request | Client Error |
| 401 | Unauthorized | Client Error |
| 403 | Forbidden | Client Error |
| 404 | Not Found | Client Error |
| 405 | Method Not Allowed | Client Error |
| 408 | Request Timeout | Client Error |
| 409 | Conflict | Client Error |
| 410 | Gone | Client Error |
| 422 | Unprocessable Entity | Client Error |
| 429 | Too Many Requests | Client Error |
| 500 | Internal Server Error | Server Error |
| 502 | Bad Gateway | Server Error |
| 503 | Service Unavailable | Server Error |
| 504 | Gateway Timeout | Server Error |
