CoStar is the parent company of Homes.com.
From the Wayback Machine:
TheRealDeal.com (2/22/2022): Employee surveillance, humiliation and exodus at CoStar
TheRealDeal.com (3/31/2022): Website digs up more dirt on CoStar CEO
-PJ
Costar is a complete monopoly in the CRE market. Super frustrating. They put their only competition out of business by suing the hell out of them