Checkout this wiki, specifically the section restrictions on valid host names hostnames are composed of series of labels concatenated with dots, as are all domain names.
For example,.
There's what's technically a valid url and what's actually used as a url today.
Only 25% of the internet is even written in english.
#2 and #4 languages are chinese and arabic.
There are the uri. iswellformeduristring and uri. trycreate methods, but they seem to return true for file paths, etc.
How do i check whether a string is a valid (not necessarily active) http.