WPML

Hummingbird is fully compatible with WPML. It compresses files, minifies CSS and JavaScript, lazy loads images, and caches pages to improve your PageSpeed Insights results. Those optimizations apply to your translated pages too, so every language version of your WPML site loads quickly.

Compatibility
Recommended Compatible with WPML
Functionality
Caching
Developer
WPMU DEV
Version tested
3.19.0
Last tested by WPML
January 28, 2026
Known issues
Search known issues

Hummingbird allows you to compress files, minify CSS and JavaScript code, lazy load images, and cache your site. This helps optimize your site and improve your Google PageSpeed Insights.

Hummingbird Pro offers the ability to automate your site optimization by scheduling performance scans, automating your database cleanup and reporting, and giving you access to advanced asset optimization.

You don’t need to apply any special configurations for Hummingbird to work with WPML. In case you have set the language URL format to be “Added as a parameter”, check the errata below to know how to cache secondary language pages.

Plugin website

Translate Hummingbird content with WPML

WPML translates the content this plugin creates and manages, along with the rest of your WordPress site.

Get WPML