This page has specific information for installing font packages on Debian.
https://en.wikipedia.org/wiki/Help:Multilingual_support_(East_Asian)
- Chinese (both Simplified & Traditional)
- Serif:
fonts-arphic-ukai - Sans-serif:
fonts-arphic-uming
- Serif:
- Japanese
- Serif:
fonts-ipafont-mincho - Sans-serif:
fonts-ipafont-gothic
- Serif:
- Korean
- All:
fonts-unfonts-core
- All:
After installing these font packages, try this page as a test: https://en.wikipedia.org/wiki/Han_unification#Examples_of_language_dependent_characters
For me on Debian/Linux, Chrome refuses to recognize the embedded language meta tags, but Firefox/Iceweasel can handle.

