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KANZAKI, Masahide
at
2017-10-18T14:51:14Z
Usage Statistics of Character Encodings for Websites, October 2017
https://w3techs.com/technologies/overview/character_encoding/all
UTF-8が90%になったという統計。2010年からの変遷は
https://w3techs.com/technologies/history_overview/character_encoding/ms/y