Accuracy of Zillow, Trulia listing data under fire again | Waccabuc Real Estate

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Editor’s note: This story has been updated with comments from Zillow and Trulia, and additional details on ZipRealty’s study of listings accuracy.

Following in the footsteps of Redfin, ZipRealty Inc. is emphasizing the timeliness and accuracy of the Internet Data Exchange (IDX) listing data it serves up on its website in comparison to the sometimes dated and incomplete information on third-party listing portals like Zillow and Trulia.

ZipRealty is offering a “Listing Check” tool that it says will allow consumers to use its website to double-check whether a home they’ve seen listed for sale on another site is actually for sale.

The Listing Check tool is available in 34 markets where ZipRealty has access to IDX listings. The company operates as a brokerage in 19 markets, and is also able to display IDX listings in 15 other “Powered by Zip” markets where it provides leads and customer relationship management tools to other brokerages.

Websites operated by real estate brokerages and agents receive listings directly from multiple listing services, which provide IDX listing feeds to members. The feeds include all listings represented by participating brokerages in a given market.

Thanks to its ties to the National Association of Realtors, Realtor.com gets listings directly from most of the nation’s more than 900 MLSs.