NAs not handled

[davidski]

Passing NAs to tldextract generates warnings/errors. Opening this as a note to myself to come back and contribute a PR. 😁

[Horopter]

Doesn't exactly implement the python counterpart. For ex: http://developer.twitter.com gives an error. Passing a longer web-url crashes the function with a timeout. The documentation is for me, insufficient to map my program in python to that of R.
In python get_tld("https://www.google.co.in/") returns google.co.in which is cleaner and better.
In R, this version gives me the following output.
host subdomain domain tld
1 http://www.google.com/
It doesn't make any sense to use this in my situation.
Thank you for listening to me. Hope to hear from you soon.