Extracts the top level domain (TLD) from the URL given.
https://anaconda.org/quanyuan/tld/badges/version.svg
https://anaconda.org/quanyuan/tld/badges/latest_release_date.svg
https://anaconda.org/quanyuan/tld/badges/latest_release_relative_date.svg
https://anaconda.org/quanyuan/tld/badges/platforms.svg
https://anaconda.org/quanyuan/tld/badges/license.svg
https://anaconda.org/quanyuan/tld/badges/downloads.svg