From your WordPress dashboard
- Visit 'Plugins > Add New'
- Search for 'visit site'
- Activate visit site from your Plugins page.
From
WordPress.org
- Download visit-site.
- Upload the 'visit-site' directory to your '/wp-content/plugins/' directory, using your favorite method (ftp, sftp, scp, etc...)
- Activate visit site from your Plugins page.