urltools
comes with an inbuilt
dataset of top level domains (TLDs), tld_dataset
.
This is used in tld_extract
to identify the top-level domain
within a particular domain name.
While updates to the dataset will be included in each new package release,
there's going to be a gap between changes to TLDs and changes to the package.
Accordingly, the package also includes tld_refresh
, which generates
and returns a fresh version of the dataset. This can then be passed through
to tld_extract
.