Multi-Site & Multi-Locale CMS Strategy: The Practical Approach

Sites that span multiple brands or locales need a clear content model and a consistent way to query and render. Here’s a practical approach.

Multi-site: one CMS or many?

Option A: One CMS instance with a “site” or “channel” dimension on content. Each piece of content is tagged with which site(s) it belongs to; the front end filters by site. Good when content is shared or when you want one admin and one deployment. Option B: Separate CMS instances per site. Good when sites are fully independent (different teams, different schemas). Most teams prefer one instance with a site dimension so they can share content and have one place to manage.

Modeling site and locale

Add a required “site” field (or relation) to collection types that vary by site. For single types (e.g. global settings), either one record per site or a structure that stores key-value per site. For locale, use a “locale” or “language” field (or the CMS’s built-in i18n if it has one). Content can be “per site and per locale” (e.g. Post has site + locale). Decide whether you have one URL per locale (e.g. /en/blog, /es/blog) or separate domains; that drives how the front end requests content (e.g. query param or separate endpoints).

Querying and routing

The front end knows the current site and locale (from URL or config). Every content request includes those: “give me the blog list for site A, locale en.” Use a small API layer that always injects site and locale so individual pages don’t forget. For the homepage or section roots, fetch the right content type (e.g. Homepage single type filtered by site and locale). Cache or index by site and locale so queries stay fast.

Shared vs localized content

Some content is shared across sites (e.g. a global legal notice); most is per site and per locale. Model shared content explicitly (e.g. “global” site or a “shared” flag) so the front end knows when to fetch once vs per locale. For media, decide whether images are per locale (e.g. different hero per language) or shared; that affects your schema and how you resolve URLs. With site and locale in the model and a consistent query pattern, multi-site and multi-locale stay manageable.

Summary

Prefer one CMS with a site (and optionally locale) dimension. Model site and locale on content; query with both in every request. Use a thin API layer that injects site and locale. Distinguish shared vs localized content and media. That’s a practical multi-site and multi-locale CMS strategy.