The `preview` command will boot up a local static web server that will serve the output directory `.vitepress/dist` at `http://localhost:4173`. You can use this to make sure everything looks good before pushing to production.
3. You can configure the port of the server by passing `--port` as an argument.
By default, we assume the site is going to be deployed at the root path of a domain (`/`). If your site is going to be served at a sub-path, e.g. `https://mywebsite.com/blog/`, then you need to set the [`base`](../reference/site-config#base) option to `'/blog/'` in the VitePress config.
If you have control over the HTTP headers on your production server, you can configure `cache-control` headers to achieve better performance on repeated visits.
The production build uses hashed file names for static assets (JavaScript, CSS and other imported assets not in `public`). If you inspect the production preview using your browser devtools' network tab, you will see files like `app.4f283b18.js`.
This `4f283b18` hash is generated from the content of this file. The same hashed URL is guaranteed to serve the same file content - if the contents change, the URLs change too. This means you can safely use the strongest cache headers for these files. All such files will be placed under `assets/` in the output directory, so you can configure the following header for them:
Note: the `_headers` file should be placed in the [public directory](/guide/asset-handling#the-public-directory) - in our case, `docs/public/_headers` - so that it is copied verbatim to the output directory.
- **Node Version:** `16` (or above, by default it usually will be 14 or 16, but on Cloudflare Pages the default is still 12, so you may need to [change that](https://developers.cloudflare.com/pages/platform/build-configuration/))
Don't enable options like _Auto Minify_ for HTML code. It will remove comments from output which have meaning to Vue. You may see hydration mismatch errors if they get removed.
3. Push your changes to the `main` branch and wait for the GitHub Actions workflow to complete. You should see your site deployed to `https://<username>.github.io/[repository]/` or `https://<custom-domain>/` depending on your settings. Your site will automatically be deployed on every push to the `main` branch.
1. Set `outDir` in VitePress config to `../public`. Configure `base` option to `'/<repository>/'` if you want to deploy to `https://<username>.gitlab.io/<repository>/`.
2. Create a file named `.gitlab-ci.yml` in the root of your project with the content below. This will build and deploy your site whenever you make changes to your content: