In the context of software, "nulled" refers to a pirated or cracked version of a product, often obtained from untrusted sources. These versions are typically modified to bypass licensing restrictions, allowing users to access premium features without paying for them.

Instead, I recommend these legitimate options:

LiteSpeed Cache Nulled: Why a "Free" Shortcut Could Break Your Site

Unlike the WordPress plugin, the high-performance server software that powers the caching (LiteSpeed Enterprise) is a paid product.