use tldextract to get domain root

src/lexicon/_private/providers/godaddy.py

@@ -12,6 +12,8 @@
 from lexicon.exceptions import LexiconError
 from lexicon.interfaces import Provider as BaseProvider
 
+import tldextract
+
 LOGGER = logging.getLogger(__name__)
 
 
@@ -299,10 +301,8 @@ def _identifier(record):
 
     def get_root_domain_name(self):
         # Remove the subdomains parts if any
-        domain = self.domain
-        domain_parts = domain.split(".")
-        n_parts = len(domain_parts)
-        return domain_parts[n_parts - 2] + "." + domain_parts[n_parts - 1]
+        extracted = tldextract.extract(domain)
+        return extracted.domain + "." + extracted.suffix
 
     def _request(self, action="GET", url="/", data=None, query_params=None):
         # When editing DNS zone, API is unavailable for few seconds