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Best optimize CSS delivery plugins for WordPress

The most popular optimize CSS delivery plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. Speed Up leads with 500+ active installs. All 1 plugins tagged “optimize css delivery” are below, with figures from WordPress.org that update every day.

Installs aren’t everything: a recent release, a “Tested up to” that matches the current WordPress, and support threads that get resolved show a plugin is looked after. Open any plugin for its downloads, rank history and alternatives.

Research this niche or see all plugins.

Top 1 optimize CSS delivery plugins

  1. 1.
    Speed Up

    The most installed optimize CSS delivery plugin, with 500+ active installs. Rated 5.0 from 8 reviews, updated 3 months ago.

All 1 plugins tagged “optimize css delivery”