>Zillow and the other public systems sit downstream of MLS with a paltry amount of (typically outdated) information. That is largely dependent on the MLS. A l

>Zillow and the other public systems sit downstream of MLS with a paltry amount of (typically outdated) information. That is largely dependent on the MLS. A lot of Realtors don't really like Zillow, for various reasons that largely boil down to selling marketing on the listings. Our MLS allows individual Realtors to opt-out of sending to Zillow, but otherwise listing data flows over to Zillow within a few minutes usually. Now, if you have one of those opt-out listings, it doesn't mean that Zillow doesn't have the listing, it just means that they get it through other means, and that usually is what leads to outdated information. As far as the amount of information, they have access to, AFAIK, all the listing information, when pulled directly from the MLS. Going via other sources will make that vary.