Is Laban Dictionary (by Laban.vn) safe?

Laban Dictionary reads the word you select on any page and sends it to dict.laban.vn to look up its meaning.

A content script runs on every site and watches for double-clicks and text selections. When you select a word or short phrase (1-49 characters), it sends that text to dict.laban.vn's quick-find endpoint to fetch the dictionary definition shown in a popup. The last 20 looked-up words are saved locally in your browser; only the selected text leaves your device, and only when you trigger a lookup.