Four scripts - Han, Latin, Cyrillic and Hangul - represent more than 90% of IDN registrations. Many of the scripts supporting the world’s most spoken languages, including Arabic, Devanagari and Telugu, comprise a tiny proportion of overall IDN registrations.
Han script (used in Chinese, Japanese and Korean languages) is popular across every category. Latin script comprises 16% of second level IDNs, but are part of ‘other’ scripts, comprising less than 4% of top level IDNs. This is not a surprising result, given that Latin script IDNs fit well within an ASCII TLD (eg .eu, or .com), whereas the top level IDNs that have been created tend to be in non-Latin scripts, and often support the same, single script across both second and top levels.
Given that IDNs are accurate predictors of the language of web content, we should hope to see a greater diversity of script registrations as part of increased Universal Acceptance.