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WPMU DEV WP Smush Pro WordPress Plugin 3.16.5

Name: WPMU DEV WP Smush Pro WordPress Plugin 3.16.5
Brand: WPMU DEV
SKU: 6224
Price: 4.59 USD
Availability: InStock

SKU: 6224

$4.59$49.00Save 91%

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Product details

Version on file: 3.16.5
Developer: WPMU DEV
Released: 2022/10/27
File size: 3.6 MB
License: GPL

About WPMU DEV WP Smush Pro WordPress Plugin 3.16.5

Smush Pro is the Pro edition of the Smush image optimization plugin from WPMU DEV. It compresses images on upload or in bulk, resizes large images, lazy loads offscreen images and can convert images to WebP, which helps page speed scores.

The file on record is version 3.16.5 from October 2022, about 3.6 MB. Pro-only features in the description, such as Ultra Smush, local WebP, background optimization and the global CDN, rely on WPMU DEV's services. Check what works with your setup before depending on them.

Key features

Lossless and lossy compression: Basic Smush keeps quality, and Super Smush compresses further.
Bulk optimization: Optimize existing images in one run.
Lazy loading and resizing: Delay offscreen images and cap maximum width and height.
WebP conversion: Local WebP serves next-gen images with fallbacks.
Directory Smush and Configs: Optimize images outside the media library, and save settings to reuse on other sites.

Is it right for you?

A good fit for

Sites with large image libraries and slow page speed
Agencies managing several WordPress sites

Look elsewhere if

Sites that only need a few images optimised by hand
Anyone who needs the CDN and API features to work without a WPMU DEV connection

How to install WPMU DEV WP Smush Pro WordPress Plugin 3.16.5

1
Download the file
Open My Account → Downloads and download the product. If the archive contains several zips (documentation, child theme, licensing files), you need the one named after the product.
2
Upload it to WordPress
In your dashboard go to Plugins → Add New Plugin → Upload Plugin and choose the zip.
3
Install and activate
Click Install Now, then Activate. If an older or free copy is already installed, WordPress offers to replace it with the uploaded version.

Notes for this product

Several Pro features run through the WPMU DEV Smush API and CDN. A standalone file may not enable them, so check the settings and the documentation.

Setup: using WPMU DEV WP Smush Pro WordPress Plugin 3.16.5

Back up your media library. Compression is not always reversible, so keep the originals.
Activate and run the setup. Open Smush in the WordPress admin and choose your settings.
Set a maximum image size. Set width and height limits that match your layout.
Run Bulk Smush. Optimise existing images, then test key pages.
Check page speed. Compare PageSpeed Insights results before and after.

Common problems and fixes

Images disappear or look wrong after turning on lazy loading or WebP

Why it happens: Lazy loading can conflict with themes, sliders or caching plugins that also defer images.
How to fix it: Turn off one optimisation at a time, exclude affected images, and clear caches.

“The link you followed has expired.” when uploading

Why it happens: The zip is larger than your server's PHP upload limit (upload_max_filesize / post_max_size).
How to fix it: Raise the upload limit in your hosting control panel, or unzip the file and upload the folder to wp-content/plugins with your host's file manager or SFTP.

“The package could not be installed. No valid plugins were found.”

Why it happens: The uploaded zip is a bundle (or a theme), not the plugin itself.
How to fix it: Unzip the download once and upload the inner zip named after the plugin.

“Plugin could not be activated because it triggered a fatal error.”

Why it happens: Usually a PHP version older than the plugin needs, or a second copy of the same plugin (for example the free version) still active.
How to fix it: Check your PHP version under Tools → Site Health → Info, deactivate any other copy of the plugin, and enable WP_DEBUG_LOG to see the exact error.

Licence or “updates unavailable” notices

Why it happens: The developer's licence key isn't included. Features that call the developer's servers (template libraries, cloud APIs, automatic updates) need it.
How to fix it: Everything that runs locally works without it. For a newer file, use Request an update from your account.