none

Indicates that no scheme is present.

unknown

Indicates the scheme is not a well-known scheme.

ftp

File Transfer Protocol (FTP)

FTP is a standard communication protocol used for the transfer of computer files from a server to a client on a computer network.

Specification

file

File URI Scheme.

The File URI Scheme is typically used to retrieve files from within one's own computer.

Specification

http

The Hypertext Transfer Protocol URI Scheme.

URLs of this type indicate a resource which is interacted with using the HTTP protocol.

Specification

https

The Secure Hypertext Transfer Protocol URI Scheme.

URLs of this type indicate a resource which is interacted with using the Secure HTTP protocol.

Specification

ws

The WebSocket URI Scheme.

URLs of this type indicate a resource which is interacted with using the WebSocket protocol.

Specification

wss

The Secure WebSocket URI Scheme.

URLs of this type indicate a resource which is interacted with using the Secure WebSocket protocol.

Specification