Limit access to the site to those with a cookie token. Visitors without the cookie see a customisable "coming soon" style of page.
This plugin will limit access to the site. Only visitors with a cookie token will be able to access the public website. Visitors without the cookie will see a "coming soon" style of page.
You can customise the "coming soon" content, and you can change the way tokens work. Visit yoursite.com/?add_token to receive the token allowing you to see the site. To remove the limited access, simply disable this plugin.
This plugin is useful when you're developing your site. You can work on your live webserver without having to publish your site.