Omilord, Zillow is data porn for middle-aged people — which probably explains why it’s timing out like crazy. This is the richest data-centric interface I’ve ever seen, with everywhere you turn in the app there being more info — look there’s previous sales! and one-year value trend! and neighbors’ estimated home values! and — and I’ve hardly gone below the surface.
Fix the performance issues and they’ll have longer time-on-site metrics than anything except porn sites.