Building Multilingual Sites: Lessons From a 4-Language Caribbean Publication

Adding languages is easy. Doing it well is hard. We learned that the hard way shipping Island Happenings in English, Spanish, German, and French — four languages, daily content updates, two cultural target groups (expats and tourists), and a single technical team. Here's what worked and what we'd do differently.

Translation is the easy part

The translation step itself is mostly solved. AI tools (Claude, DeepL, GPT) produce translation quality at or near professional human level for most use cases. The cost dropped to near-zero. Time-to-translate dropped from days to seconds.

What remains hard: everything around the translation. Routing, URL structure, language detection, content management workflows, SEO across languages, cultural adaptation versus literal translation. These are the actual work of a multilingual site.

URL structure determines half your SEO

There are three viable URL patterns for multilingual content: subdomain (en.site.com), subdirectory (site.com/en/), or query parameter (site.com/?lang=en). Pick the wrong one and you'll spend years fighting search rankings.

Our recommendation: subdirectory. site.com/en/ for English, site.com/es/ for Spanish, etc. Same domain authority across all languages. Easier to manage. Better-supported by hreflang tags. Subdomain works too but splits authority — fine for huge sites, painful for small ones.

Hreflang tags are non-negotiable

Every page in every language needs hreflang tags telling search engines "this page exists in these other languages." Without them, Google routinely shows the English version to Spanish-speaking users in Spanish-speaking markets — a conversion disaster.

Done right, hreflang ensures that a German visitor searching from Munich sees the German page, not a translated-on-the-fly machine version. Google does the right thing automatically once you give it the metadata.

Detection vs. selection

Don't auto-redirect users based on browser language. It feels smart and creates terrible user experiences — a German visitor in the U.S. shouldn't be force-redirected to the German site. Show language options, default sensibly, but let the user choose. The button to switch should be visible on every page, not buried in the footer.

Cultural adaptation beats literal translation

"Sosúa is amazing" translates literally fine in every language. But the things that make Sosúa amazing differ by audience. Germans care about reliability and value. Americans care about fun and novelty. French care about food and atmosphere.

For Island Happenings, we don't ship one piece of content translated four times. We ship four parallel daily editions, each tuned to its audience, sharing maybe 60% of the underlying content but framed differently. The framing is what converts.

Content management is the bottleneck

Daily multilingual publishing — even with AI doing the translation heavy lift — requires real workflow. Who reviews the German version? When does the French go out? What if the Spanish needs an update because something changed in the original?

We built a simple admin tool that handles this: write the source language, AI translates to the other three, human reviews each, schedule for delivery. Without this tool, the four-language output would have collapsed into three after the first month, then two, then one.

The numbers from the field

Island Happenings' English audience is 60% of total readers. Spanish is 25%. German is 10%. French is 5%. Without the multilingual support we'd have captured maybe 70% of that audience — the English version would have served the bilingual readers but lost the rest. The 30% lift more than paid for the engineering investment.

For sites where your customer base genuinely spans multiple language markets, multilingual is one of the highest-ROI features you can add. For sites where your audience is essentially monolingual, it's overkill. The decision turns on the audience composition, not the technical effort.