def same_domain(url1: QUrl, url2: QUrl) -> bool:
"""Check if url1 and url2 belong to the same website.
This will use a "public suffix list" to determine what a "top level domain"
is. All further domains are ignored.
For example example.com and www.example.com are considered the same. but
example.co.uk and test.co.uk are not.
Return:
True if the domains are the same, False otherwise.
"""
ensure_valid(url1)
ensure_valid(url2)
suffix1 = url1.topLevelDomain()
suffix2 = url2.topLevelDomain()
if not suffix1:
return url1.host() == url2.host()
if suffix1 != suffix2:
return False
domain1 = url1.host()[:-len(suffix1)].split('.')[-1]
domain2 = url2.host()[:-len(suffix2)].split('.')[-1]
return domain1 == domain2
