日本自動車タイヤ協会 is the organization in Japan founded in 1947.
According to PR-model, jatma.or.jp is ranked 321,653rd in multilingual Wikipedia, in particular this website is ranked 23,592nd in Japanese Wikipedia.
The website is placed before paraglideonline.net and after portcult.com in the BestRef global ranking of the most important sources of Wikipedia.