Coverage
Coverage claims are easy to make and hard to check. Everything below is stated so you can test it on a parcel you pick, in a county you pick, against the county's own published document.
A property tax figure has one authority behind it, and it is not a data vendor. Every county is read one of two ways, and which one is a property of the county rather than a preference of ours.
A county is only treated as verified when our total for a parcel matches the county's own published bill to the cent — total, ad valorem subtotal and direct-charge subtotal separately, so two errors cannot cancel out. A plausible number is not a verified one.
All 58 counties are then probed daily, and the probe asks whether a real bill came back rather than whether the call returned. That distinction matters: a scraper that quietly stops still lets a report build, with a number that still looks right.
Every layer is determined against the parcel boundary, with the centroid result returned alongside it. Where the two disagree is where a determination gets challenged, so both travel together.
Eight, each screened at its standard radius, with every regulatory program inside it reported by name — including the ones that come back clean, because a reader comparing two reports needs to know a program was searched.
Pick a parcel and we will run it against whatever you use today, and hand back a field-by-field comparison — including anywhere we come out worse.