International Karate Organization is the organization calling itself Kyokushinkaikan with Shokei Matsui as its successor after the death of Mas Oyama.
According to PR-model, kyokushinkaikan.org is ranked 68,129th in multilingual Wikipedia, in particular this website is ranked 7,940th in Japanese Wikipedia.
The website is placed before vietcombank.com.vn and after mikrofwno.gr in the BestRef global ranking of the most important sources of Wikipedia.