At the second level, Han is the most popular script (55%); next comes Latin (29%), scripts associated with Japanese language (combined Han, Katakana and Hiragana) (10%), and Hangul (associated with Korean language) (3%). All other scripts, including Cyrillic, Arabic, Devanagari (with hundreds of millions of speakers offline) represent 3% of second level IDNs.
During 2017, there has been a 10% decline in the proportion of Latin script IDNs at the second level, due in part to a change in policy by the ccTLD registry for Viet Nam, which led to a decline in the second level registrations under .vn from nearly 1 million to just over 5 000.
In general, there is a good fit between a Latin script IDN (usually with accents or diacritics) and an ASCII TLD, where ASCII is a subset of Latin script. For example, for Germany, France, or Turkey, whose languages are based on Latin script, it makes sense to deploy IDNs at the second level under established ccTLDs (.de, .fr and .tr).