Customizer Responsive Server-Side Components Device Preview
Read full writeup: Previewing Themes with Adaptive Designs in the Customizer.
Consider an alternative
Customizer Responsive Server-Si… shows warning signs in 2026 — compare the alternatives below before installing. It runs on 70+ sites and was last updated 9 years ago, and scores 25/100 on our health check.
- Small user base (70+ active installs)
- Very few reviews so far
- No update in 8 years
- Only tested up to WordPress 4.9 (latest is 7.1)
How does it stack up?
Side-by-side on installs, updates, ratings & support
Daily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where Customizer Responsive Serve… stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| adaptive | >100 |
| customize | >100 |
| customizer | >100 |
| responsive | >100 |
| rwd | #18 |
Version adoption
Share of active sites per release.
About Customizer Responsive Server-Side Compo…
From the official readme · v0.1.1Description
Read full writeup: Previewing Themes with Adaptive Designs in the Customizer.
This plugin extends the responsive device preview functionality in the customizer which was added in 4.5 (see #31195). In core when you change the previewed device it merely changes the dimensions of the preview, allowing you to simulate how the theme will appear on tablet or mobile screens. What it does not do, however, is cause the preview to reload with the User-Agent overridden for the current device being previewed. For themes that implement a responsive design this core behavior is just fine since changing the dimensions of the iframe will cause the appropriate media queries to apply. However, if you have an adaptive design for your theme you won’t be able to see any server-side components that it may display when viewing a different device. For example, on mobile devices a theme may want to skip outputting the sidebar altogether to save on bandwidth.
This plugin will ensure that the preview is refreshed when the previewed device is changed in addition to changing the preview window size. It will pass a customize_previewed_device query parameter on the URL being previewed, and this parameter will be either desktop, tablet, or mobile. The plugin will override the $_SERVER['HTTP_USER_AGENT'] to be a user agent representative of the supplied device type so that calls to wp_is_mobile(), jetpack_is_mobile(), and Jetpack_User_Agent_Info::is_tablet() will all return the expected values based on the current previewed device.
Development of this plugin is done on GitHub. Pull requests welcome. Please see issues reported there before going to the plugin forum.
Changelog
0.1.1 [2017-11-01]
- Update minimum required version of WordPress to 4.7.
- Re-use
parseQueryStringfrom core. - Explicitly require PHP 5.3.
- Clean up JS, upgrade dev-lib.
0.1.0 [2016-10-05]
Initial release.
For developers
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Best Customizer Responsive Server-… alternatives
All adaptive plugins →FAQ
Customizer Responsive Server-Side C…: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Oct 5, 2026
Is Customizer Responsive Server-Si… free?
Yes. Customizer Responsive Server-Si… is free to download and use from the official WordPress.org plugin directory.
Is Customizer Responsive Server-Si… safe to use in 2026?
Customizer Responsive Server-Si… shows warning signs in 2026 — compare the alternatives below before installing. It runs on 70+ sites and was last updated 9 years ago, and scores 25/100 on our health check.
How many websites use Customizer Responsive Server-Si…?
Customizer Responsive Server-Si… is active on 70+ WordPress websites and has been downloaded 2,774 times since it launched in October 2016. It was downloaded 67 times in the last 30 days.
Does Customizer Responsive Server-Si… work with WordPress 7.1?
Customizer Responsive Server-Si… is officially tested up to WordPress 4.9.33, while the latest release is 7.1.2. It may still work, but try it on a staging site first.
What PHP version does Customizer Responsive Server-Si… need?
Customizer Responsive Server-Si… requires PHP 5.3 or higher. Most hosts run PHP 8.x today, so it works on any modern WordPress hosting.
When was Customizer Responsive Server-Si… last updated?
The latest version, 0.1.1, was released on November 9, 2017 (9 years ago).
Who makes Customizer Responsive Server-Si…?
Customizer Responsive Server-Si… is developed and maintained by Weston Ruter.
What are the best alternatives to Customizer Responsive Server-Si…?
The most popular alternatives to Customizer Responsive Server-Si… are Hammy (100+ installs), AddFunc Adaptive Content (50+ installs) and Mobile Switcher (50+ installs).
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