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Zillow reigns supreme in the U.S. real estate website landscape, attracting a staggering  million monthly visits in 2025. This figure dwarfs its closest competitor, Realtor.com, which garnered less than half of Zillow's traffic. Online platforms are extremely popular, with the majority of homebuyers using a mobile device during the buying process.

The rise of Zillow

Founded in 2006, the Seattle-headquartered proptech Zillow has steadily grown over the years, establishing itself as the most popular U.S. real estate website. In 2025, the listing platform recorded about ***million unique monthly users across its mobile applications and website. Despite holding an undisputed position as a market leader, Zillow's revenue decreased between 2021 and 2023. A probable cause for the decline was the plummeting of housing transactions and the negative housing sentiment.

Performance and trends in the proptech market

The proptech market has shown remarkable performance, with companies like real and QuinStreet experiencing significant stock price increases in 2024. This growth is particularly notable in the residential brokerage segment. Meanwhile, major players in proptech fundraising, such as Fifth Wall and Hidden Hill Capital, have raised billions in direct investment, further fueling the sector's development. As technology continues to reshape the real estate industry, online platforms like Zillow are likely to play an increasingly crucial role in how people search for and purchase homes.