YITH Pre-Launch WordPress plugin gives you the ability to have a simple Pre-Launch (Coming soon/under construction) page for your website when it is under construction.
If you’re launching your website and you would like to make it known to your visitors, you can download and install the plugin YITH Pre-Launch to quickly set a lovely page customization to show to your visitors. With YITH Pre-Launch Plugin you can warn your users and visitors of the ongoing prelaunch of your website, with a pretty countdown in real time.