Elementor is the more common of the two in our index: it runs on 1,371 websites against 1,201 for WP Rocket, and 225 sites use both. Counts come from real scans, not vendor claims.
Elementor is a website builder platform for professionals on WordPress.
WP Rocket is a caching and performance optimisation plugin to improve the loading speed of WordPress websites.
225 sites run both Elementor and WP Rocket. That is 19% of the sites using WP Rocket, the smaller of the two.
Want to know which one a particular site uses? Look it up and see its whole stack, or compare two sites side by side.