# Error Pages
**`SWS`** provides custom HTML error pages for the HTTP `404` and `50x` status errors.
This feature is enabled by default and can be controlled either by the string `--page404` ([SERVER_ERROR_PAGE_404](./../configuration/environment-variables.md#server_error_page_404)) or the `--page50x` ([SERVER_ERROR_PAGE_50X](./../configuration/environment-variables.md#server_error_page_50x)) arguments.
!!! info "Tip"
Note that either `--page404` and `--page50x` have defaults (optional values) so they can be specified or omitted as required.
Below an example of how to customize those HTLM pages.
```sh
static-web-server \
--port 8787 \
--root ./my-public-dir \
--page404 ./my-page-404.html \
--page50x ./my-page-50x.html
```
