How fresh the data is
A source date, a collection date and a guide update mean different things.
Guide updated · Source dates are shown in the app
Say a page was rebuilt today but its Census estimate covers an earlier period. The new page is still showing that earlier estimate. Rebuilding a screen does not refresh the source.
Read three dates separately
The source period says what time the number describes. The collection date says when REIalpha obtained or verified it. A guide update says when these instructions changed. They can all differ.
The app’s data details show source dates where available. If a source date or collection date is missing, it is unknown. A scheduled refresh is not evidence that the refresh succeeded.
Expected is not observed
The source guide lists expected refresh intervals from the source catalog. Some feeds refresh in rotating batches and do not cover the whole country in one run. Some published government data spans several years.
A historical insurance period stays historical even when premiums are adjusted for later rate changes. Historical nonrenewal observations are not made current by that premium adjustment.
Missing is not zero
Blank values can mean a source is absent, a sample is too small, an input is missing or access is locked. Read the label rather than inferring a zero. A derived number can be missing when any required input is missing.
Coverage and privacy
A listed source does not mean every ZIP, city or home is covered. Probate and city-case matches can be uncertain, and a case does not mean the owner wants to sell. Check the original evidence before acting on a signal.
Public examples use invented homes. Privacy and Terms describe the service. Find a number’s definition.