Date of the last check (YYYY-MM-DD), or null if never checked.
From status_show; null when a portal does not expose it (Berlin).
Number of datasets package_search reported at the last check.
Short name for --portal, e.g. hamburg.
Why the last check failed, or null.
Site root; the Action API is at <url>/api/3/action.
Whether the last check could search the portal.
A known CKAN portal, from the built-in list (
ckan portals).