Although the Church does have a variety of separate domain names, but it seems like it tries to keep everything on the main LDS.org domain. Many of the separate domains redirect to a section of the LDS.org domain. The same is true for most of the sub-domains. For example, I recently found out that each of the three main magazines have their own sub-domain that redirects to the appropriate section of the LDS.org domain.

• http://Ensign.LDS.org/ - The Ensign of The Church of Jesus Christ of Latter-day Saints
• http://Friend.LDS.org/ - A children’s magazine published by The Church of Jesus Christ of Latter-day Saints
• http://NewEra.LDS.org/ - Official monthly publication for youth of The Church of Jesus Christ of Latter-day Saints

I’ve updated the Official web sites of The Church of Jesus Christ of Latter-day Saints page with these sub-domains.