Migrating a website — whether that’s a domain change, a platform switch, or a URL structure overhaul — is risky enough with one language. With ten, the number of things that can silently break multiplies. This checklist walks through what to verify before, during, and after a multilingual WordPress migration.
Before Migration: Audit Every Language
- Export a full URL list for every language, including posts, pages, categories, tags, and media.
- Record current indexing status and organic traffic per language from Google Search Console.
- Document existing hreflang mappings and canonical relationships between language versions.
- Back up all translated content and translation memory so nothing needs to be regenerated from scratch.
During Migration
- Map every old URL to its new equivalent, for every language, before setting up redirects.
- Set up 301 redirects that stay within the same language — avoid falling back to a default-language redirect.
- Re-verify hreflang tags point to the new URLs, not the old ones.
- Update or regenerate language-specific XML sitemaps to reflect the new structure.
After Migration: Monitoring Checklist
| Check | Timeframe |
|---|---|
| Submit new sitemaps in Search Console for every language property | Day 1 |
| Spot-check redirects for the highest-traffic pages in each language | Day 1–2 |
| Monitor Page Indexing reports for crawl errors per language | Week 1–2 |
| Compare organic traffic per language against pre-migration baseline | Week 2–4 |
Why Migrations Are Safer with AI-Managed Translation
Because AI translation systems store translation memory and URL mappings centrally, a migration doesn’t require re-translating content from scratch — only re-pointing the stored translations at new URLs. This dramatically reduces the risk of content loss or inconsistency across languages during a migration compared to sites where translations exist only as disconnected static files.
Frequently Asked Questions
How long does it take for multilingual rankings to recover after migration?
With correct redirects and hreflang, most sites see rankings stabilize within two to six weeks per language, though high-traffic languages tend to recover faster due to more frequent recrawling.
Should all languages migrate at the same time?
Yes, migrating in a single coordinated pass avoids the added complexity and temporary hreflang inconsistency of splitting languages across multiple migration windows.
What’s the single most common multilingual migration mistake?
Forgetting to update hreflang tags to the new URLs, which leaves search engines referencing dead pages even after redirects are technically in place.
Conclusion
A multilingual migration succeeds or fails on how thoroughly every language is mapped, redirected and re-verified — not just the default one. Centralized, AI-managed translation makes this process far more predictable by keeping every language’s content and URL mapping in one system instead of scattered across separate manual translations.