MultiSite Language Redirect

Automatically routes visitors to the most appropriate site based on their browser language or a previously selected language. Perfect for Craft CMS multi-site setups where each site group can have its own default (primary) site.

Why this plugin?

Craft lets you define a single global “Primary site,” but real-world multilingual projects often group sites by region or brand. MultiSite Language Redirect lets you set a primary site per site group, then seamlessly redirects users to the best match, while respecting your exclusions and preferences.

Key features

• Primary site per site group Define a default landing site for every site group, instead of one global primary site.
• Automatic language detection Redirects to the best-matching site using the visitor’s Accept-Language (browser language) or a saved preference.
• Remembers user choice Stores the visitor’s chosen language/site in a cookie (name is configurable).

• Granular control

  • Ignored HTTP Methods (e.g., skip redirects on POST, PUT, etc.)
  • Global Excluded Routes (never redirect on these)
  • Per-Site-Group Excluded Routes (fine-tune exclusions per group)
  • Disable redirection per site group (opt-out where needed)
• Works with language switchers When users pick a language/site, their preference is saved and used from then on.

How it works

1. First visit: If no language cookie is present, the plugin checks the browser’s preferred language(s) and tries to match to one of your sites in the current group.
2. Fallbacks: If there’s no direct match, the visitor is sent to the group’s Primary site (your chosen default for that group).
3. Remember: The selected site/language is saved to a cookie so subsequent visits go straight to the user’s preferred site.
4. Respects your rules: No redirects occur for ignored HTTP methods or excluded routes (global or per group).

Notes on the language cookie

• Stores only the language/site preference, no personal data.
• Name is configurable to match your project’s conventions.
• Used to honor the user’s choice over browser language on subsequent visits.

Important limitation

Redirects only work when your multi-site setup uses path-based or domain-based language segments (e.g. site-a.com/en, site-a.com/fr, site-b.com/nl). Subdomain-based sites (e.g. de.site-a.com, fr.site-a.com) are not supported.