Url fields

A Url field contains string of text that should be a valid URL. Fields in user interfaces that render a Url field also provide a way to open the URL specified by the contents of the field. A Url field uses all the usual field properties, which are described in "Field properties". There are additional properties.

The Default Value property can be used to specify the initial value of this field in a new record. The system allows the following prefixes: http://, https://, file://, and ftp://. If the protocol is not http://, https://, file://, or ftp://, the system prefixes http://