via isitwp.com => original post link
Do you want an easy way to enable and disable maintenance mode any time you need?
Maintenance mode will hide your site from visitors while you run updates or fix broken pages. You can carry out all sorts of tasks like tweaking website settings, changing your theme, or adding more plugins.
Without maintenance mode, visitors may see broken pages and have a bad experience with your site. So if you want to look professional, you need to set up a stunning landing page to display while your site is down.