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Uniform Resource Identifer (URI) Schemes

per [RFC4395]


[RFC4395] defines an IANA maintained registry of URI Schemes. These registries include the Permanent and Provisional URI Schemes.

Permanent URI Schemes

URI Scheme
Description
Reference
acap application configuration access protocol [RFC2244]
cid content identifier [RFC2392]
crid TV-Anytime Content Reference Identifier [RFC4078]
data data [RFC2397]
dav dav [RFC2518]
dict dictionary service protocol [RFC2229]
dns Domain Name System  [RFC-josefsson-dns-url-13.txt]
fax fax [RFC2806]
file Host-specific file names [RFC1738]
ftp File Transfer Protocol [RFC1738]
go go [RFC3368]
gopher The Gopher Protocol  [RFC-hoffman-gopher-uri-03.txt]
h323 H.323 [RFC3508]
http Hypertext Transfer Protocol [RFC2616]
https Hypertext Transfer Protocol Secure [RFC2818]
im Instant Messaging [RFC3860]
imap internet message access protocol [RFC2192]
info Information Assets with Identifiers in Public Namespaces  [RFC-vandesompel-info-uri-04.txt]
ipp Internet Printing Protocol [RFC3510]
iris.beep iris.beep [RFC3983]
ldap Lightweight Directory Access Protocol  [RFC-ietf-ldapbis-url-09.txt]
mailto Electronic mail address [RFC2368]
mid message identifier [RFC2392]
modem modem [RFC2806]
mtqp Message Tracking Query Protocol [RFC3887]
mupdate Mailbox Update (MUPDATE) Protocol [RFC3656]
news USENET news [RFC1738]
nfs network file system protocol [RFC2224]
nntp USENET news using NNTP access [RFC1738]
opaquelocktoken opaquelocktokent [RFC2518]
pop Post Office Protocol v3 [RFC2384]
pres Presence [RFC3859]
rtsp real time streaming protocol [RFC2326]
service service location [RFC2609]
sip session initiation protocol [RFC3261]
sips secure session initiation protocol [RFC3261]
snmp Simple Network Management Protocol [RFC4088]
soap.beep soap.beep [RFC3288]
soap.beeps soap.beeps [RFC3288]
tag tag [RFC4151]
tel telephone [RFC2806]
telnet Reference to interactive sessions [RFC4248]
tftp Trivial File Transfer Protocol [RFC3617]
tip Transaction Internet Protocol [RFC2371]
urn Uniform Resource Names (click for registry) [RFC2141]
vemmi versatile multimedia interface [RFC2122]
xmlrpc.beep xmlrpc.beep [RFC3529]
xmlrpc.beeps xmlrpc.beeps [RFC3529]
z39.50r Z39.50 Retrieval [RFC2056]
z39.50s Z39.50 Session [RFC2056]

Provisional URI Schemes

URI Scheme
Description
Reference
afs Andrew File System global file names [RFC1738]
mailserver Access to data available from mail servers [RFC1738]
tn3270 Interactive 3270 emulation sessions [RFC1738]

Historical URI Schemes

URI Scheme
Description
Reference
prospero Prospero Directory Service [RFC4157]
wais Wide Area Information Servers [RFC4156]

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Page updated 23-February-2006
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