An URI scheme is the top level of the Uniform Resource Identifier (URI) naming structure. All URIs and absolute URI references are formed with a scheme name, followed by a colon character (":"),
URI schemes are frequently erroneously referred to as "protocols", or specifically as URI protocols or URL protocol.
For.e.g The http scheme, for instance, is generally used for interacting with Web resources using Hyper Text Transfer Protocol.
| Scheme | Information |
| aaa | Purpose Diameter Protocol General format aaa://<host>[:<port>][;transport=<transport>][;protocol=<protocol>] example: |
| aaas | Purpose |
| acap | Purpose |
| cap | Purpose Calendar access protocol General format generic syntax Notes URL scheme used to designate both calendar stores and calendars accessible using the CAP protocol |
| cid | Purpose Referencing individual parts of an SMTP/MIME message General format cid:<content-id> Notes e.g. referencing an attached image within a formatted e-mail. (See also mid:) |
| crid | Purpose TV-Anytime Content Reference Identifier General format crid://<host>/<data> Notes Allow references to scheduled publications of broadcast media content. |
| data | Purpose Inclusion of small data items inline General format data:<mediatype>[;base64],<data> |
| dav | Purpose HTTP Extensions for Distributed Authoring (WebDAV) General format dav: Notes Used for internal identifiers only; WebDAV itself addresses resources using the http: and https: schemes. |
| dict | Purpose Dictionary service protocol General format dict://<user>;<auth>@<host>:<port>/d:<word>:<database>:<n> dict://<user>;<auth>@<host>:<port>/m:<word>:<database>:<strat>:<n> |
| dns | Purpose Domain Name System General format dns:[//<host>[:<port>]/]<dnsname>[?<dnsquery>] examples: |
| fax | Purpose Used for telefacsimile numbers General format fax:<phonenumber> Notes Deprecated in RFC 3966 in favour of tel:. Listed as "historical" |
| file | Purpose Addressing files on local or network file systems General format file://[host]/path or (RFC 3986) file:[//host]/path |
| ftp | Purpose FTP resources General format generic syntax |
| geo | Purpose A Uniform Resource Identifier for Geographic Locations General format geo:<lat>,<lon>[,<alt>][;u=<uncertainty>] (for WGS-84) Notes Other coordinate reference systems (including those for non-terrestrial globes, such as The Moon and Mars) will be supported, once registered. |
| go | Purpose Common Name Resolution Protocol General format go://[<host>]?[<common-name>]*[;<attribute>=[<type>,]<value>] or go:<common-name>*[;<attribute>=[<type>,]<value>] |
| gopher | Purpose Used with Gopher protocol General format gopher://<host>:<port>/<item type><path> |
| h323 | Purpose Used with H.323 multimedia communications General format h323:[<user>@]<host>[:<port>][;<parameters>] |
| http | Purpose Hyper Text Trasfer Protocol General format generic syntax |
| https | Purpose HTTP connections secured using SSL/TLS General format generic syntax |
| iax | Purpose Inter-Asterisk eXchange protocol version 2 General format iax:[<username>@]<host>[:<port>][/<number>[?<context>]]
|
| icap | Purpose Internet Content Adaptation Protocol |
| im | Purpose Instant messaging protocol General format im:<username>@<host> Notes Works as xmpp: URI for single user chat sessions. |
| imap | Purpose Accessing e-mail resources through IMAP General format imap://[<user>[;AUTH=<type>]@]<host>[:<port>]/<command> |
| info | Purpose Information Assets with Identifiers in Public Namespaces |
| ipp | Purpose Internet Printing Protocol |
| iris iris.beep iris.xpc iris.xpcs iris.lws |
Purpose Internet Registry Information Service |
| ldap | Purpose LDAP directory request General format ldap://[<host>[:<port>]][/<dn> [?[<attributes>][?[<scope>][?[<filter>][?<extensions>]]]]] example: |
| lsid[dubious– discuss] | Purpose Life Science Identifier General format URN:LSID:<Authority>:<Namespace>:<ObjectID>[:<Version>] example: |
| mailto | Purpose SMTP e-mail addresses and default content General format mailto:<address>[?<header1>=<value1>[&<header2>=<value2>]] example: |
| mid | Purpose Referencing SMTP MIME messages, or parts of messages. General format mid:<message-id>[/<content-id>] Notes (See also cid:) |
| modem | Purpose modem Notes Deprecated in RFC 3966 in favour of tel:. Listed as "historical" |
| msrp msrps |
Purpose Message Session Relay Protocol General format 0 |
| mtqp | Purpose Message Tracking Query Protocol |
| mupdate | Purpose Mailbox Update Protocol |
| news | Purpose (Usenet) newsgroups and postings General format news:<newsgroupname> or news:<message-id> Notes References a particular resource, regardless of location. |
| nfs | Purpose Network File System resources General format generic syntax |
| nntp | Purpose Usenet NNTP General format nntp://<host>:<port>/<newsgroup-name>/<article-number> Notes Referencing a specific host is often less useful than referencing the resource generically, as NNTP servers are not always publicly accessible |
| opaquelocktoken | Purpose opaquelocktoken |
| pop | Purpose Accessing mailbox through POP3 General format pop://[<user>[;AUTH=<auth>]@]<host>[:<port>] |
| pres | Purpose Used in Common Profile for Presence (CPP) to identify presence General format pres:<address>[?<header1>=<value1>[&<header2>=<value2>]] Notes Similar to "mailto:" |
| prospero | Purpose Prospero Directory Service Notes Listed as "Historical" by IANA. |
| rsync | Purpose rsync General format rsync://<host>[:<port>]/<path> |
| rtsp | Purpose Real Time Streaming Protocol |
| service | |
| shttp | Purpose Secure HTTP Notes Largely superseded by HTTPS. |
| sieve | Purpose ManageSieve protocol |
| sip | Purpose Used with Session Initiation Protocol (SIP) General format sip:<user>[:<password>]@<host>[:<port>][;<uri-parameters>][?<headers>] examples: |
| sips | Purpose Secure equivalent of sip General format sips:<user>[:<password>]@<host>[:<port>][;<uri-parameters>][?<headers>] |
| sms | Purpose Interact with SMS capable devices for composing and sending messages. General format sms:<phone number>?<action> examples: |
| snmp | Purpose Simple Network Management Protocol General format snmp://[user@]host[:port][/[<context>[;<contextEngineID>]][/<oid>]] examples: |
| soap.beep soap.beeps |
|
| tag | Purpose Tag URI General format tag:<email/domainname>,<date>:<Item> Notes Represented entities do not necessarily have to be accessible electronically. |
| tel | Purpose Used for telephone numbers General format tel:<phonenumber> |
| telnet | Purpose Used with telnet General format telnet://<user>:<password>@<host>[:<port>/] |
| tftp | Purpose Trivial File Transfer Protocol |
| thismessage | Purpose multipart/related relative reference resolution |
| tip | Purpose Transaction Internet Protocol |
| tv | Purpose TV Broadcasts |
| urn | Purpose Uniform Resource Names General format urn:<namespace>:<specificpart> |
| vemmi | Purpose Versatile Multimedia Interface |
| wais | Purpose Used with Wide area information server (WAIS) General format wais://<host>:<port>/<database>[?<search>] or wais://<host>:<port>/<database>/<wtype>/<wpath> Notes Listed as "Historical" by IANA. |
| ws wss |
Purpose WebSocket protocol General format ws:<hierarchical part> |
| xmlrpc.beep xmlrpc.beeps |
|
| xmpp | Purpose XMPP General format xmpp:<user>@<host>[:<port>]/[<resource>][?<query>] |
| z39.50r | Purpose Z39.50 retrieval General format z39.50r://<host>[:<port>]/<database>?<docid>[;esn=<elementset>][;rs=<recordsyntax>] |
| z39.50s | Purpose Z39.50 session General format z39.50s://<host>[:<port>]/[<database>][?<docid>][;esn=<elementset>][;rs=<recordsyntax>] |
Tags : Uniform Resource Identifier or Uniform Resource Locator List,List Of Protocols,URL Scheme,Official URI Scheme
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