WP Rocket

WP Rocket is the best-known premium caching and performance plugin for WordPress, handling page caching, file minification, lazy loading, and database cleanup from a settings panel simple enough that most users never open the docs. It is built by WP Media, a company founded in 2013 and based in France, which also makes Imagify and RocketCDN.

There is no free version. Licences start at roughly $59 per year for a single site, with multi-site and unlimited tiers above that. Renewals are discounted, and every licence includes a 14-day money-back guarantee.

The affiliate program pays a flat 20% commission on each purchase. Because WP Rocket is a yearly licence rather than a monthly subscription, earnings come as annual lumps rather than a monthly recurring line — but conversion rates are high, since the plugin is frequently the recommended fix in any WordPress speed article.

The program runs on the Awin network, and approval can take up to 48 hours. The tracking cookie is 30 days, with a 30-day holding period covering refunds. Payouts are monthly via bank deposit or cheque, depending on your preference and region.