IsDisplayName test whether the given value meets the specification of the display name.

IsDNS1123Name tests for a string that conforms to the definition of a name in DNS (RFC 1123).

IsEmail test whether the given value meets the specification of the email.

IsPhoneNumber test whether the given value meets the specification of the phone number.

IsURL test whether the given value is a valid URL address.

IsValiadURL tests that https://host:port is reachble in timeout.