> ## Documentation Index
> Fetch the complete documentation index at: https://docs.geoscale.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Localization

> Language support and localization behavior for address responses.

## Overview

Address responses can be localized using the `lang` query parameter.

Localization affects textual values returned by the API, including:

* `single_line`
* `lines`
* textual fields inside `record`

Localization affects **display formatting only** and does **not** influence search matching or
ranking.

***

## Supported languages

Language support varies by country.

| Country         | Supported languages | Default |
| --------------- | ------------------- | ------- |
| The Netherlands | `nl`                | `nl`    |
| Belgium         | `nl`, `fr`, `de`    | `nl`    |
| Luxembourg      | `fr`                | `fr`    |
| France          | `fr`                | `fr`    |

***

## Behavior

### Default language

If the `lang` parameter is omitted, the API uses the default language for the requested country.

### Unsupported languages

If the requested language is not supported for the selected country, the API falls back to the
country's default language.

### Missing localized values

If a requested language is supported but a specific value is not available in that language, the
best available localized variant is returned.