Automatic language detection

Consentio automatically detects the user's language and displays the banner in the corresponding language. Detection follows this order:

1. lang attribute on the <html> element
2. Accept-Language header from the browser
3. Default language set in the dashboard

Supported languages

Consentio supports over 30 languages including:

Setting the default language

Set the default language for cases when automatic detection is not possible:

1. Go to your website's dashboard
2. Open Settings → Languages
3. Select the default language from the dropdown menu
4. Save changes

Forcing a specific language

If you always want to display the banner in a specific language, set the lang attribute on the <html> element:

<!DOCTYPE html>
<html lang="cs">
<head>
  <!-- Consentio will automatically use Czech -->
  <script src="https://consentio.cz/widget/YOUR_SCRIPT_KEY/consentio.min.js" async></script>
</head>
...

Multilingual website

For websites with multiple language versions, we recommend:

Option 1: Automatic detection from HTML

Set the correct lang attribute on each language version:

<!-- Czech version -->
<html lang="cs">

<!-- English version -->
<html lang="en">

<!-- German version -->
<html lang="de">

Option 2: Dynamic setting

For SPAs or dynamic websites, update the lang attribute on the <html> element:

// Get the current language from your application
const currentLang = getCurrentLanguage() // e.g. 'en'

// Set the language on the HTML element
document.documentElement.lang = currentLang

// Consentio will automatically use the language from the html[lang] attribute

Custom translations

On the Pro plan, you can edit text for individual languages:

1. In the dashboard, go to Designer → Text
2. Select a language from the dropdown menu
3. Edit the individual text strings
4. Save changes

Available text for editing

Adding a new language

If you need a language that is not in the supported list:

1. Contact our support at [email protected]
2. Alternatively, use custom translations on the Pro plan

RTL languages

Consentio supports right-to-left (RTL) languages:

• Arabic (ar)
• Hebrew (he)
• Persian (fa)

The banner layout automatically adapts to the text direction.

Language detection

Consentio automatically detects the language from these sources (in order of priority):

1. HTML lang attribute - Highest priority. The widget uses the language defined in <html lang="cs">.
2. Accept-Language header - If the lang attribute is not set, the widget uses the preferred language from the browser.
3. Default language - As a fallback, the default language set in the dashboard is used.