kmvan

<blockquote>
开启站点维护模式。 
 Enable site maintenance-mode.
</blockquote>
<h3>Custom remote page 自定义远程页面</h3>
<blockquote>
Add code into <code>wp-config.php</code> file:
添加以下代码到 <code>wp-config.php</code> 文件：
</blockquote>
<pre><code>`php
</code></pre>
\define(‘INN_MAINTENANCE_MODE_REMOTE_URL’, ‘https://YOUR_DOMAIN/PAGE.html’); 
 `
<h3>Custom server location page 自定义服务器本地页面</h3>

<blockquote>
Create a new file and name <code>maintenance</code> in WordPress root dir.
在 <code>WordPress</code> 根目录里创建一个新文件并且命名为 <code>maintenance</code>。
</blockquote>
<h3>Custom refresh minutes 自定义刷新分钟数</h3>
<blockquote>
Add code into <code>wp-config.php</code> file:
添加以下代码到 <code>wp-config.php</code> 文件：
</blockquote>
<pre><code>`php
</code></pre>
\define(‘INN_MAINTENANCE_MODE_REFRESH_MINUTES’, 5); 
 `

INN Maintenance Mode | INN 维护模式

good

> 开启站点维护模式。 > Enable site maintenance-mode.

WPExperts.io

Maintenance mode or a coming soon page with progress bar and responsive layout. Simply enable the maintenance mode from the plugin settings and in few seconds you can put your site in maintenance mode.
With a progress bar and countdown timer visitors will be informed about the time left till launch and you can collect their emails using built-in MailChimp integration.
Features
<ul>
<li>Simple & easy to use interface – perfect for non tech users</li>
<li>Create beautiful maintenance mode or coming soon page for your WP site</li>
<li>Change heading & sub-heading</li>
<li>Set custom title for maintenance mode or coming coon page</li>
<li>SEO Optimized</li>
<li>Enable / Disable maintenance or coming soon mode</li>
<li>Progress Bar</li>
<li>Countdown Timer</li>
<li>Visual editor for changing content</li>
<li>Social Icons</li>
<li>Upload your own logo</li>
<li>Change background color and various text colors</li>
<li>Choose from hundreds of fonts</li>
<li>Set SEO Title of maintenance mode page</li>
<li>Set Favicon</li>
</ul>

Rocket Maintenance Mode & Coming Soon Page

Easy to use and almost fully customizable



Does what it says - creates a maintenance page, but everything is pretty much locked down unless you upgrade to the premium version, which the plugin authors annoyingly let you know everywhere. Makes you think that they're just trying to make a buck. Can't even change the font color.
There are better plugins that do exactly this that are much more configurable. I'd keep looking.



Much better, more configurable plugins out there to do this

Create great looking Maintenance Mode Page or Coming Soon Page that sets up in minutes.

INN Maintenance Mode | INN 维护模式 vs Rocket Maintenance Mode & Coming Soon Page