This is the list of all currently existing TLDs: https://data.iana.org/TLD/tlds-alpha-by-domain.txt https://data.iana.org/TLD/tlds-alpha-by-domain.txt Note tha

This is the list of all currently existing TLDs: https://data.iana.org/TLD/tlds-alpha-by-domain.txt https://data.iana.org/TLD/tlds-alpha-by-domain.txt Note that IDN TLDs are presented in punycode in that list (the XN-- ones), so you'd want to convert them to Unicode to see what they actually look like (e.g. many are Chinese characters).