gh is a tool to look up stuff about an IP or name using libresolv. Thus, it honours /etc/resolv.conf, etc, unlike dig or nslookup. You can get the canonical name, aliases, name for number, or number for name, depending on options.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.