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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
aaa Diameter Protocol [RFC3588]
aaas Diameter Protocol with Secure Transport [RFC3588]
acap application configuration access protocol [RFC2244]
cap Calendar Access Protocol [RFC4324]
cid content identifier [RFC2392]
crid TV-Anytime Content Reference Identifier [RFC4078]
data data [RFC2397]
dav dav [RFC4918]
dict dictionary service protocol [RFC2229]
dns Domain Name System [RFC4501]
fax fax (historical, see [RFC3966]) [RFC2806]
file Host-specific file names [RFC1738]
ftp File Transfer Protocol [RFC1738]
go go [RFC3368]
gopher The Gopher Protocol [RFC4266]
h323 H.323 [RFC3508]
http Hypertext Transfer Protocol [RFC2616]
https Hypertext Transfer Protocol Secure [RFC2818]
iax Inter-Asterisk eXchange Version 2 [RFC-guy-iax-05.txt]
icap Internet Content Adaptation Protocol [RFC3507]
im Instant Messaging [RFC3860]
imap internet message access protocol [RFC5092]
info Information Assets with Identifiers in Public Namespaces [RFC4452]
ipp Internet Printing Protocol [RFC3510]
iris Internet Registry Information Service [RFC3981]
iris.beep iris.beep [RFC3983]
iris.xpc iris.xpc [RFC4992]
iris.xpcs iris.xpcs [RFC4992]
iris.lwz iris.lwz [RFC4993]
ldap Lightweight Directory Access Protocol [RFC4516]
mailto Electronic mail address [RFC2368]
mid message identifier [RFC2392]
modem modem (historical, see [RFC3966]) [RFC2806]
msrp Message Session Relay Protocol [RFC4975]
msrps Message Session Relay Protocol Secure [RFC4975]
mtqp Message Tracking Query Protocol [RFC3887]
mupdate Mailbox Update (MUPDATE) Protocol [RFC3656]
news USENET news [RFC-ellermann-news-nntp-uri-11.txt]
nfs network file system protocol [RFC2224]
nntp USENET news using NNTP access [RFC-ellermann-news-nntp-uri-11.txt]
opaquelocktoken opaquelocktokent [RFC4918]
pop Post Office Protocol v3 [RFC2384]
pres Presence [RFC3859]
rtsp real time streaming protocol [RFC2326]
service service location [RFC2609]
shttp Secure Hypertext Transfer Protocol [RFC2660]
sieve ManageSieve Protocol [RFC-ietf-sieve-managesieve-09.txt]
sip session initiation protocol [RFC3261]
sips secure session initiation protocol [RFC3261]
snmp Simple Network Management Protocol [RFC4088]
soap.beep soap.beep [RFC4227]
soap.beeps soap.beeps [RFC4227]
tag tag [RFC4151]
tel telephone [RFC3966]
telnet Reference to interactive sessions [RFC4248]
tftp Trivial File Transfer Protocol [RFC3617]
thismessage multipart/related relative reference resolution [RFC2557]
tip Transaction Internet Protocol [RFC2371]
tv TV Broadcasts [RFC2838]
urn Uniform Resource Names (click for registry) [RFC2141]
vemmi versatile multimedia interface [RFC2122]
xmlrpc.beep xmlrpc.beep [RFC3529]
xmlrpc.beeps xmlrpc.beeps [RFC3529]
xmpp Extensible Messaging and Presence Protocol [RFC5122]
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]
dtn DTNRG research and development [draft-irtf-dtnrg-arch]
[RFC3987]
[http://www.dtnrg.org/wiki/Code]
[draft-irtf-dtnrg-bundle-security]
[draft-irtf-dtnrg-sec-overview]
[RFC5050]
mailserver Access to data available from mail servers [RFC1738]
pack pack [draft-shur-pack-uri-scheme]
tn3270 Interactive 3270 emulation sessions [RFC1738]

Historical URI Schemes

URI Scheme
Description
Reference
prospero Prospero Directory Service [RFC4157]
snews NNTP over SSL/TLS [RFC-ellermann-news-nntp-uri-11.txt]
videotex videotex [draft-mavrakis-videotex-url-spec]
[RFC2122]
[RFC3986]
wais Wide Area Information Servers [RFC4156]

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Page updated 2009-04-06
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