Simple Maintenance plugin can be well installed to show mode page.
It allows you to establish page on the back end by displaying maintenance page on the front end..
It uses HTML5 layout which makes the mode page viewable from mobile device..
Easier to manage as the mode can be turned on demonstrating the plugin.
Notify the crawler that the page is back for time of time..
Go to Add New plugins screen in WordPress Dashboard.
Browse for the plugin issue simple-maintenance. zip on computer.
Install Now. and then hit the edit button...
I tried flushing the cache turning off CDN all sorts.
Browse the code recheck out SVN repository or subscribe to the development log RSS....
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