Translated sites

With WPML or Polylang, the title set under Design → Heading is offered for translation alongside the rest of your site's strings (WPML String Translation, or Polylang's string translations). Left empty, it is the plugin's own "Contents", which is already translated into Spanish and French.

Each translation of a post keeps its own Table of Contents box, so its heading and the headings it leaves out are in its own language. A translation whose box has never been touched follows its original's On this post setting: a post set to Never show it stays that way in every language.