Laravel provides maintenance mode. If you enable Laravel Maintenance Mode, It will show a custom view to all your application requests. If you are updating your site or you want to put your application under maintenance means you can able to use this option.
Following is command to enable this mode
php artisan down
You may provide message also with down command. The message may be used to display a custom message.
php artisan down --message="Adding new features"
Following is command to disable this mode
php artisan up