Compass is suing Zillow over what it calls the "Zillow ban," a new rule that the real estate brokerage firm claims is meant to control home listings and crush the home search competition.

Compass, the real estate brokerage, claims that Zillow, the website that has 227 million unique visitors a month, has conspired to maintain a monopoly over digital home listings.

Compass is suing Zillow over what it calls the "Zillow ban," a new rule that the real estate brokerage firm claims is meant to control home listings and crush the home search…