source_vintage: Report what each category source is and when it was last published
Description
Every lookup in this package answers from a static list, and those lists have very
different vintages. Two of them are no longer published at all. Use this to see which
answers can be trusted to describe a domain as it is today.
Usage
source_vintage(source = NULL)
Value
A tibble with one row per source: key, source,
last_published, status, successor and note.
Arguments
source
Optional; one of "shalla", "dmoz", "stevenblack",
"uni". If NULL, every source is returned.