It would be great to be able to get the Nameservers for a domain when scraping as part of the extended data
It can be very easily done in Linux by executing:
host -t ns
I find this very useful to find the sites that are part of a pbn or part of an seo company client base.
I currently have a python script that does it and gets:
Registration date, estimate renewal date, Nameservers, registrar and owner