stilling.com

Wiktionary: present participle of still; The act by which something is made still.
present participle of still; The act by which something is made still; position; post; adjustment; composure; (music) tuning.
Stilling is a surname. Notable people with the surname include: Benedict Stilling (1810–1879), German anatomist and surgeon; Harald Conrad Stilling (1815–1891), Danish architect; Jakob Stilling (1842–1915), German ophthalmologist