1、The business scope is mainly in the USA, with the main business being a real estate buying, selling, and rental information platform that provides property search, Zestimate valuation, and connects with local professionals. 2、It is in the leading tier of the real estate information industry, with competitors including Redfin, Realtor.com, etc. 3、The official website brand name is "Zillow" or "Zillow.com".