Bazewp.

The website title 'モバイルスタンプラリーの未来を開く「モバスタ」' indicates it is about 'Mobile Stamp Rally' service named 'モバスタ', hosted on WordPress. The header menu includes 'NEWS, ABOUT, PROJECT, FAQ, CONTACT, COMPANY', suggesting a corporate or project-focused website for a business or organization. The language is Japanese, and the region is inferred as Japan. The colors suggest a professional yet potentially dynamic brand.