Realtor.com

When brokers/agents talk about “The Market”, they are generally referring to the MLS (as if that were the whole of the market).

And Realtor.com is said to be the only “official” Market platform [though functionally it is simply an in-house syndicator] of the MLS (Multiple Listing Service) data. As such, it is the official public facing display of the MLS.

It has approximately 15% of the market for total home searches.

Once a listing goes live on the MLS, it is automatically pulled onto all the syndicator platforms.

Note: if you pay for a flat-fee listing to get on the MLS, make sure your flat-fee listing broker can list for your specific area. The MLS is broken up into over 500 local databases. Does that make any tech sense? No. But it is a legacy system, and do not expect it to change any time soon.

The “unofficial” Syndicator Platforms receive feeds from the MLS (Multiple Listing Service) which automatically populates their databases for which people can search homes.

Here are approximate percents of market share for total home searches.

Zillow.com approx 50%
Redfin.com approx 10%
Homes.com approx 4%
Trulia.com approx 3% (owned by Zillow Group)
Local/Regional Brokers’ Sites approx 2%
Others approx 1%

Here is the Market Platform. And here are the Independent Platforms.