札幌静修高等学校 is the Japanese high school in Japan founded in 1922.
According to PR-model, sapporoseishu.ed.jp is ranked 539,794th in multilingual Wikipedia, in particular this website is ranked 40,883rd in Japanese Wikipedia.
The website is placed before spydus.co.uk and after air-museum.org in the BestRef global ranking of the most important sources of Wikipedia.