When a web browser requests data such as HTML files and images from the web server, the web server responds as an HTTP response. The HTTP response contains the result of processing for the request (HTTP request). This is the status code. This status code is a three-digit number from 100 to 500. When we are able to browse the website normally, the status code of `` 200'' is returned as an HTTP response.
| Status code | Contents |
|---|---|
| 100 continue | Request ongoing |
| 200 OK | The request was successfully accepted |
| 301 Moved Paramanetly | The requested content has moved |
| 302 Found | The requested content is temporarily moved |
| 304 Not Modified | The requested content has not been updated. Content temporarily saved in the WEB browser is displayed |
| 400 Bad Request | Illegal request |
| 404 Not Found | Requested content not detected |
| 500 Internal Server Error | An error occurred inside the server while processing the request |
| 503 Service Unavailable | Temporarily unable to process due to access concentration or maintenance |
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