1706:"g:h" -> "g:h" "g" -> "http://a/b/c/g" "./g" -> "http://a/b/c/g" "g/" -> "http://a/b/c/g/" "/g" -> "http://a/g" "//g" -> "http://g" "?y" -> "http://a/b/c/d;p?y" "g?y" -> "http://a/b/c/g?y" "#s" -> "http://a/b/c/d;p?q#s" "g#s" -> "http://a/b/c/g#s" "g?y#s" -> "http://a/b/c/g?y#s" ";x" -> "http://a/b/c/;x" "g;x" -> "http://a/b/c/g;x" "g;x?y#s" -> "http://a/b/c/g;x?y#s" "" -> "http://a/b/c/d;p?q" "." -> "http://a/b/c/" "./" -> "http://a/b/c/" ".." -> "http://a/b/" "../" -> "http://a/b/" "../g" -> "http://a/b/g" "../.." -> "http://a/" "../../" -> "http://a/" "../../g" -> "http://a/g"
50:
845:
1081:
and it is optional. It is composed by zero or more path segments that do not refer to an existing physical resource name (e.g. a file, an internal module program or an executable program) but to a logical part (e.g. a command or a qualifier part) that has to be passed separately to the first part of
1845:
A report published in 2002 by a joint W3C/IETF working group aimed to normalize the divergent views held within the IETF and W3C over the relationship between the various 'UR*' terms and standards. While not published as a full standard by either organization, it has become the basis for the above
1754:
is an abstract domain to which a collection of element and attribute names can be assigned. The namespace name is a character string which must adhere to the generic URI syntax. However, the name is generally not considered to be a URI, because the URI specification bases the decision not only on
659:
A URI has a scheme that refers to a specification for assigning identifiers within that scheme. As such, the URI syntax is a federated and extensible naming system wherein each scheme's specification may further restrict the syntax and semantics of identifiers using that scheme. The URI generic
582:
As such, a URL is simply a URI that happens to point to a resource over a network. However, in non-technical contexts and in software for the World Wide Web, the term "URL" remains widely used. Additionally, the term "web address" (which has no formal definition) often occurs in non-technical
457:
pointed out that the term "URL" had, despite widespread public use, faded into near obsolescence, and serves only as a reminder that some URIs act as addresses by having schemes implying network accessibility, regardless of any such actual use. As URI-based standards such as
366:
formally defined relative and absolute URLs, refined the general URL syntax, defined how to resolve relative URLs to absolute form, and better enumerated the URL schemes then in use. The agreed definition and syntax of URNs had to wait until the publication of IETF
220:, is a unique sequence of characters that identifies an abstract or physical resource, such as resources on a webpage, mail address, phone number, books, real-world objects such as people and places, concepts. URIs are used to identify anything described using the
255:). Therefore, URLs are a subset of URIs, ie. every URL is a URI (and not necessarily the other way around). Other URIs provide only a unique name, without a means of locating or retrieving the resource or information about it; these are
386:
in August 1998 saw the URI syntax become a separate specification and most of the parts of RFCs 1630 and 1738 relating to URIs and URLs in general were revised and expanded by the IETF. The new RFC changed the meaning of
577:
URL is a useful but informal concept: a URL is a type of URI that identifies a resource via a representation of its primary access mechanism (e.g., its network "location"), rather than by some other attributes it may
1766:
Originally, the namespace name could match the syntax of any non-empty URI reference, but the use of relative URI references was deprecated by the W3C. A separate W3C specification for namespaces in XML 1.1 permits
323:" mentions URLs (as Uniform Resource Locators), URNs (originally, as Unique Resource Numbers), and the need to charter a new working group. In November 1992 the IETF "URI Working Group" met for the first time.
622:
Standardize on the term URL. URI and IRI are just confusing. In practice a single algorithm is used for both so keeping them distinct is not helping anyone. URL also easily wins the search result popularity
445:
and canonical URIs for publishing multiple versions of a given resource. For example, content might differ by language or by size to adjust for capacity or settings of the device used to access that content.
422:
in
January 2005. While obsoleting the prior standard, it did not render the details of existing URL schemes obsolete; RFC 1738 continues to govern such schemes except where otherwise superseded. IETF
535:(URL) is a URI that specifies the means of acting upon or obtaining the representation of a resource, i.e. specifying both its primary access mechanism and network location. For example, the URL
506:(URN) is a URI that identifies a resource by name in a particular namespace. A URN may be used to talk about a resource without implying its location or how to access it. For example, in the
434:
scheme. Simultaneously, the IETF published the content of RFC 3986 as the full standard STD 66, reflecting the establishment of the URI generic syntax as an official
Internet protocol.
326:
During the debate over defining URLs and URNs, it became evident that the concepts embodied by the two terms were merely aspects of the fundamental, overarching, notion of resource
878:). Although schemes are case-insensitive, the canonical form is lowercase and documents that specify schemes must do so with lowercase letters. Examples of popular schemes include
1755:
lexical components, but also on their intended use. A namespace name does not necessarily imply any of the semantics of URI schemes; for example, a namespace name beginning with
307:
developed, a need to distinguish a string that provided an address for a resource from a string that merely named a resource emerged. Although not yet formally defined, the term
566:
A URN is analogous to a person's name, while a URL is analogous to their street address. In other words, a URN identifies an item and a URL provides a method for finding it.
2562:
Report from the Joint W3C/IETF URI Planning
Interest Group: Uniform Resource Identifiers (URIs), URLs, and Uniform Resource Names (URNs): Clarifications and Recommendations
1654:
https://example.com/path/resource.txt#fragment //example.com/path/resource.txt /path/resource.txt path/resource.txt ../resource.txt ./resource.txt resource.txt #fragment
462:
make evident, resource identification need not suggest the retrieval of resource representations over the
Internet, nor need they imply network-based resources at all.
2969:
794:
when the corresponding character is outside the allowed set or is being used as a delimiter of, or within, the component. A percent-encoding of an identifying data
469:
uses the HTTP URI scheme to identify both documents and concepts for practical uses, a distinction which has caused confusion as to how to distinguish the two. The
4649:
4453:
1040:). A path is always defined for a URI, though the defined path may be empty (zero length). A segment may also be empty, resulting in two consecutive slashes (
1247:
providing direction to a secondary resource, such as a section heading in an article identified by the remainder of the URI. When the primary resource is an
3997:
2065:
Universal
Resource Identifiers in WWW: A Unifying Syntax for the Expression of Names and Addresses of Objects on the Network as used in the World-Wide Web
1048:
but does not always imply a relation to one. If an authority component is defined, then the path component must either be empty or begin with a slash (
3377:
1816:
819:
if it has an associated delimiter and the delimiter does not appear in the URI; the scheme and path components are always defined. A component is
4224:
3703:
3637:
3497:
970:
in the userinfo subcomponent is deprecated for security reasons. Applications should not render as clear text any data after the first colon (
4392:
4280:
4254:
4158:
4080:
3776:
3001:
1795:
1768:
790:
represented as unreserved characters, reserved characters that do not act as delimiters in the component and subcomponent respectively, and
4689:
4311:
4002:
3647:
3176:
1584:
frequently use URI references to point to other resources, such as external documents or specific portions of the same logical document:
4412:
3453:
1806:
921:
507:
410:
addresses. A number of shortcomings discovered in the two specifications led to a community effort, coordinated by RFC 2396 co-author
1266:
may be used in the scheme, userinfo, host, path, query, and fragment, and the scheme- or implementation-specific reserved characters
93:
71:
573:
of 30 July 2001, which acknowledges the precedence of the term URI rather than endorsing any formal subdivision into URL and URN.
4644:
4364:
3910:
4359:
3345:
3292:
3243:
3186:
3020:
2746:
316:
243:
information resources on a network (either on the
Internet or on another private network, such as a computer filesystem or an
4407:
4173:
3790:
1790:
563:
and related code. In practice, that is not necessarily the case, as HTTP allows specifying arbitrary formats in its header.)
459:
320:
225:
221:
866:), consisting of a sequence of characters beginning with a letter and followed by any combination of letters, digits, plus (
4659:
1821:
1986:
4371:
4113:
3854:
3728:
3540:
569:
Technical publications, especially standards produced by the IETF and by the W3C, normally reflect a view outlined in a
1052:). If an authority component is undefined, then the path cannot begin with an empty segment—that is, with two slashes (
4699:
4694:
4666:
4603:
4387:
3845:
3535:
1569:) cannot be used as the first path segment of a relative reference if its path component does not begin with a slash (
880:
544:
1573:), as it would be mistaken for a scheme component. Such a path segment must be preceded by a dot path segment (e.g.,
974:) found within a userinfo subcomponent unless the data after the colon is the empty string (indicating no password).
3905:
3490:
4512:
4073:
3157:
3135:
3115:
3092:
1951:, p. 5, "Resource: the term "resource" is used in a general sense for whatever might be identified by a URI"
1811:
1801:
1534:
438:
1217:
4304:
3683:
1735:
1628:
1087:
532:
248:
64:
58:
844:
4448:
3900:
3663:
3408:
1306:
may be used in the userinfo, host, path, query, and fragment. Additionally, the generic reserved character
4198:
4128:
3053:
2438:
1402:
https://john.doe@www.example.com:1234/forum/questions/?tag=networking&order=newest#:~:text=whatever
1086:; this is often used to select dynamic content (a document, etc.) or to tailor it as requested (see also:
892:
284:
implicitly introduced the idea of a URL as a short string representing a resource that is the target of a
75:
338:(i.e. URL-like strings whose precise syntaxes and semantics depended on their schemes). In addition, the
4704:
4397:
4193:
3890:
3483:
2985:
1216:
of non-hierarchical data. Its syntax is not well defined, but by convention is most often a sequence of
755:
631:, and often have the same name, they are semantically different from protocols. For example, the scheme
591:
schemes. Such assumptions can lead to confusion, for example, in the case of XML namespaces that have a
503:
256:
240:
229:
2710:
2708:
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3698:
3693:
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3042:
2946:
2829:
2768:
2576:
2466:
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2307:
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2197:
2123:
2079:
998:
628:
31:
4639:
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4354:
4297:
4249:
4168:
4089:
3622:
1826:
1715:
1244:
916:
654:
515:
482:
334:
that acknowledged the existence of URLs and URNs. Most importantly, it defined a formal syntax for
176:
1932:
1930:
3718:
3607:
3597:
3449:
3200:
2597:
570:
1677:(a URI with no fragment component). The base URI can be obtained, in order of precedence, from:
786:
from the reserved characters (only from generic reserved characters for components) and define
4634:
4562:
4344:
4259:
4244:
4234:
4138:
3961:
3748:
3668:
3627:
3617:
3581:
3425:
3180:
3034:
2997:
2963:
2760:
2532:
1730:. In a versioning system, for example, to add a "checkout" command to a URL, it is written as
1620:
795:
3088:
1351:
https://john.doe@www.example.com:1234/forum/questions/?tag=networking&order=newest#top
4537:
4269:
4103:
4058:
3941:
3545:
3417:
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3296:
3247:
3190:
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2375:
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2113:
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1890:
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955:
791:
669:
661:
520:
450:
423:
415:
399:
379:
368:
359:
339:
200:
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4547:
4239:
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4123:
4118:
4108:
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3743:
3713:
3632:
3612:
3602:
3335:
3327:
3323:
3278:
3274:
3229:
3225:
3172:
3152:; Hollander, Dave; Layman, Andrew; Tobin, Richard; Thompson, Henry S., eds. (2009-12-08).
3065:
2918:
2809:
2446:
2357:
2229:
2099:
2059:
1771:(IRI) references to serve as the basis for namespace names in addition to URI references.
1581:
910:
904:
759:
641:
346:
attempted to summarize the syntaxes of URL schemes in use at the time. It acknowledged --
277:
233:
172:
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4624:
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4183:
4178:
4133:
3550:
3331:
3282:
3233:
2926:
2442:
2365:
2103:
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may be used in the userinfo, path, query and fragment, the generic reserved characters
837:
442:
292:
190:
180:
1880:
portions of dot-decimal notation to be dropped or raw integer IP addresses to be used.
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published an e-mail in 2005 with a solution of the problem, which became known as the
4683:
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4522:
4507:
3869:
3824:
3642:
1751:
1738:
and also acts as an intermediary between HTTP and underlying resource, in this case.
1542:
1538:
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subcomponent, consisting of either a registered name (including but not limited to a
4709:
4552:
4497:
4468:
4458:
4417:
3931:
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3506:
3204:
2922:
2726:
2714:
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1948:
1936:
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466:
411:
3130:
Ayers, Danny; Völkel, Max (2008-12-03). Sauermann, Leo; Cyganiak, Richard (eds.).
2672:
1855:
The procedures for registering new URI schemes were originally defined in 1999 by
809:
organized hierarchically in order of decreasing significance from left to right:
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3309:
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2413:
2409:
2405:
2401:
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2256:
2237:
2209:
2200:
2181:
2167:
2163:
2159:
2155:
2151:
2147:
2143:
2139:
2135:
2126:
2107:
2082:
2063:
1898:
1894:
1864:
1860:
1785:
1318:
may be used in the path, query and fragment, and the generic reserved character
1236:
1056:)—since the following characters would be interpreted as an authority component.
886:
802:
followed by the two hexadecimal digits representing that octet's numeric value.
673:
665:
552:
454:
427:
419:
403:
383:
372:
363:
343:
304:
260:
660:
syntax is a superset of the syntax of all URI schemes. It was first defined in
288:. At the time, people referred to it as a "hypertext name" or "document name".
4557:
4438:
4349:
4320:
3992:
3895:
3678:
3673:
3566:
3403:
3153:
3111:
1876:
For URIs relating to resources on the World Wide Web, some web browsers allow
1083:
990:
3429:
3038:
2764:
627:
While most URI schemes were originally designed to be used with a particular
4502:
4478:
4339:
4334:
4203:
4023:
3838:
3831:
3733:
3571:
3525:
3385:
1221:
1152:
1148:
528:. However, it gives no information as to where to find a copy of that book.
285:
281:
17:
3470:
3089:"On Linking Alternative Representations To Enable Discovery And Publishing"
2647:
2533:"On Linking Alternative Representations To Enable Discovery And Publishing"
1646:
element/instruction is a URI reference; likewise the first argument to the
1258:
of a specific element, and web browsers will scroll this element into view.
1044:) in the path component. A path component may resemble or map exactly to a
1036:
component, consisting of a sequence of path segments separated by a slash (
3074:
2717:, pp. 13–14; "2.2. Reserved Characters", "2.3. Unreserved Characters"
2035:
2011:
1962:
4577:
4527:
4517:
4492:
4488:
4473:
4463:
4033:
3723:
3530:
3520:
3149:
3107:
986:
959:
684:
486:
244:
3421:
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4043:
4038:
3810:
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315:
came to represent the latter. In July 1992 Berners-Lee's report on the
3110:; Hollander, Dave; Layman, Andrew; Tobin, Richard, eds. (2006-08-16).
1330:
The following figure displays example URIs and their component parts.
1082:
the path that identifies an executable module or program managed by a
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4163:
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3354:
3301:
3252:
3195:
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2302:
2248:
2192:
2118:
2074:
1723:
898:
599:
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when it does not begin with a scheme component followed by a colon (
823:
if it has no characters; the scheme component is always non-empty.
4608:
4598:
4264:
4148:
4028:
4018:
3936:
3915:
3688:
3465:
Architecture of the World Wide Web, Volume One, §2: Identification
2622:
2012:"Proceedings of the Twenty-Fourth Internet Engineering Task Force"
1780:
680:
406:
provided a minor update to RFC 2396, allowing URIs to accommodate
3131:
2036:"Proceedings of the Twenty-Fifth Internet Engineering Task Force"
4208:
4143:
3987:
3977:
3951:
3771:
3459:
1846:
common understanding and has informed many standards since then.
1760:
1727:
1635:
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1252:
1248:
1002:
994:
560:
407:
300:
296:
4293:
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1901:) encourages CGI authors to support ';' in addition to '&'.
1703:
a relative reference is resolved to its target URI as follows:
798:
is a sequence of three characters, consisting of the character
477:. The W3C subsequently published an Interest Group Note titled
4402:
3864:
3404:"WebDAV: IEFT standard for collaborative authoring on the Web"
3075:"URIs, URLs, and URNs: Clarifications and Recommendations 1.0"
2648:"URIs, URLs, and URNs: Clarifications and Recommendations 1.0"
1747:
1616:
559:. (In this case, HTTP usually implies it to be in the form of
441:(W3C) Technical Architecture Group (TAG) published a guide to
259:(URNs). The web technologies that use URIs are not limited to
43:
38:
4289:
1098:"http://www.example.com/questions/3456/my-document"
1690:
the URI used for the actual retrieval of the representation;
1122:, which is passed to the executable module or program named
27:
String used to identify a name of a web or internet resource
3011:
Hansen, Tony; Hardie, Ted (June 2015). Thaler, Dave (ed.).
2739:
Hansen, Tony; Hardie, Ted (June 2015). Thaler, Dave (ed.).
1600:
element provides a URI reference, as does the value of the
2932:
RFC 3986 Uniform
Resource Identifier (URI): Generic Syntax
1939:, p. 7; "1.1.2. Examples", "1.1.3. URI, URL, and URN"
1262:
The scheme- or implementation-specific reserved character
350:—the existence of relative URLs and fragment identifiers.
1565:). A path segment that contains a colon character (e.g.,
201:
https://datatracker.ietf.org/doc/html/rfc3986#section-1.1
3013:"Guidelines and Registration Procedures for URI Schemes"
2727:
Berners-Lee, Tim; Fielding, Roy T.; Masinter, Larry 2005
2715:
Berners-Lee, Tim; Fielding, Roy T.; Masinter, Larry 2005
2700:
Berners-Lee, Tim; Fielding, Roy T.; Masinter, Larry 2005
2646:
URI Planning
Interest Group, W3C/IETF (September 2001).
1949:
Berners-Lee, Tim; Fielding, Roy T.; Masinter, Larry 2005
1937:
Berners-Lee, Tim; Fielding, Roy T.; Masinter, Larry 2005
1922:
Berners-Lee, Tim; Fielding, Roy T.; Masinter, Larry 2005
1697:
Within a representation with a well defined base URI of
924:, although non-registered schemes are used in practice.
782:. Syntax components and subcomponents are separated by
330:. In June 1994, the IETF published Berners-Lee's first
311:
came to represent the former, and the more contentious
2742:
2290:
R. Hinden; B. Carpenter; L. Masinter (December 1999).
1718:
is appended to a URL, usually at the end, after a "?"
1518:
urn:oasis:names:specification:docbook:dtd:xml:4.1.2
1732:
http://editing.com/resource/file.php?command=checkout
3073:
URI Planning
Interest Group, W3C/IETF (2001-09-21).
2559:
Mealling, Michael H.; Denenberg, Ray (August 2002).
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4011:
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3341:Uniform Resource Identifiers (URI): Generic Syntax
3288:Uniform Resource Identifiers (URI): Generic Syntax
3239:Uniform Resource Identifiers (URI): Generic Syntax
2239:Uniform Resource Identifiers (URI): Generic Syntax
1673:. This implies that the base URI exists and is an
583:publications as a synonym for a URI that uses the
2371:Uniform Resource Identifier (URI): Generic Syntax
224:(RDF), for example, concepts that are part of an
1523:└──────────────────────┬──────────────────────┘
620:
592:
575:
489:response code for redirections in more detail.
1734:. It has the advantage of both being easy for
276:URIs and URLs have a shared history. In 1990,
232:(OWL), and people who are described using the
4650:Copyright aspects of hyperlinking and framing
4454:Copyright aspects of hyperlinking and framing
4305:
4074:
3491:
668:, published in August 1998, and finalized in
543:, whose representation is obtainable via the
414:, that culminated in the publication of IETF
319:(IETF) "UDI (Universal Document Identifiers)
291:Over the next three and a half years, as the
8:
3017:IETF Request for Comments (RFC) Pages - Test
2968:: CS1 maint: multiple names: authors list (
1687:the entity encapsulating the representation;
920:. URI schemes should be registered with the
106:
2352:
2350:
2348:
239:URIs which provide a means of locating and
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2328:
2293:Format for Literal IPv6 Addresses in URL's
2224:
2222:
2220:
2218:
1759:may have no connotation to the use of the
1726:as a mechanism of adding functionality to
922:Internet Assigned Numbers Authority (IANA)
105:
30:"URI" redirects here. For other uses, see
4090:Uniform Resource Identifier (URI) schemes
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2073:
1473:news:comp.infosystems.www.servers.unix
679:A URI is composed from an allowed set of
94:Learn how and when to remove this message
3112:"Namespaces in XML 1.1 (Second Edition)"
2865:
2796:
1681:the reference URI itself if it is a URI;
1158:
1005:addresses must be enclosed in brackets (
805:The URI generic syntax consists of five
57:This article includes a list of general
3154:"Namespaces in XML 1.0 (Third Edition)"
2812:; Connolly, Daniel W. (November 1995).
2673:"URL Standard: 6.3. URL APIs elsewhere"
2452:Hypertext Transfer Protocol -- HTTP/1.1
1914:
1838:
1817:Resource Directory Description Language
1322:may be used in the query and fragment.
1208:component preceded by a question mark (
950:subcomponent followed by an at symbol (
635:is generally used for interacting with
3704:Knowledge representation and reasoning
3638:Semantic service-oriented architecture
2961:
2877:
2729:, pp. 12; "2.1. Percent-Encoding"
1714:URL munging is a technique by which a
1110:(an executable module or program) and
4393:Internationalized resource identifier
3378:"Browser Arcana: IP Literals in URLs"
1796:Internationalized Resource Identifier
1769:Internationalized Resource Identifier
514:identifies a specific edition of the
7:
3160:. 2.2 Use of URIs as Namespace Names
3118:. 2.2 Use of URIs as Namespace Names
1543:as facilitated by appropriate syntax
826:The authority component consists of
593:visual similarity to resolvable URIs
524:. The URN for that edition would be
4413:Persistent uniform resource locator
3456:-maintained registry of URI Schemes
2935:. Internet Engineering Task Force.
2901:
2889:
2702:, p. 46; "9. Acknowledgements"
1807:Persistent uniform resource locator
1251:document, the fragment is often an
1147:part may also be referred to as a '
935:component preceded by two slashes (
539:refers to a resource identified as
236:would each have an individual URI.
3765:Syntax and supporting technologies
1863:, and are now defined by RFC
1684:the content of the representation;
1019:subcomponent preceded by a colon (
508:International Standard Book Number
63:it lacks sufficient corresponding
25:
2598:"[httpRange-14] Resolved"
1478:└─────────────┬─────────────────┘
1126:to select the requested document.
4645:Timeline of hypertext technology
3132:"Cool URIs for the Semantic Web"
2623:"Cool URIs for the Semantic Web"
2621:Sauermann, Leo (December 2008).
1631:is a fragmentless URI reference;
1023:), consisting of decimal digits.
843:
48:
3346:Internet Engineering Task Force
3293:Internet Engineering Task Force
3244:Internet Engineering Task Force
3187:Internet Engineering Task Force
3182:Hypertext Markup Language – 2.0
3021:Internet Engineering Task Force
2815:Hypertext Markup Language - 2.0
2747:Internet Engineering Task Force
2109:Uniform Resource Locators (URL)
2106:; M. McCahill (December 1994).
1693:the context of the application.
1541:and fit within the URI system,
1435:ldap:///c=GB?objectClass?one
862:component followed by a colon (
756:uppercase and lowercase letters
598:Specifications produced by the
395:from "Universal" to "Uniform."
317:Internet Engineering Task Force
4408:Extensible resource identifier
1791:Extensible Resource Identifier
1460:mailto:John.Doe@example.com
1332:
610:, and so newer HTML5 APIs use
479:Cool URIs for the Semantic Web
460:Resource Description Framework
336:Universal Resource Identifiers
222:Resource Description Framework
1:
3879:Schemas, ontologies and rules
3376:Lawrence, Eric (2014-03-06).
2236:; L. Masinter (August 1998).
1822:Universally unique identifier
1407:└─────────────┬─────────────┘
1356:└─────────────┬─────────────┘
1151:,' whose last part may be a '
1112:"/3456/my-document"
676:, published in January 2005.
481:, which explained the use of
234:Friend of a Friend vocabulary
218:Universal Resource Identifier
4372:Hyperlinks in virtual worlds
2596:Fielding, Roy (2005-06-18).
551:) from a network host whose
537:http://example.org/Main_Page
4690:Application layer protocols
4667:Domain Application Protocol
4604:Hypertext Transfer Protocol
4388:Uniform resource identifier
3460:URI schemes on the W3C wiki
1963:"The Early History of HTML"
1413:└────────────┬────────────┘
1362:└────────────┬────────────┘
1243:). The fragment contains a
1178:key1=value1&key2=value2
639:using HTTP, but the scheme
545:Hypertext Transfer Protocol
439:World Wide Web Consortium's
210:Uniform Resource Identifier
107:Uniform Resource Identifier
4726:
3906:Semantic Web Rule Language
2844:.
2787:.
2531:Raman, T.V. (2006-11-01).
2521:.
2424:.
2322:.
2280:.
2212:.
2170:.
1742:Relation to XML namespaces
1665:a URI reference against a
1535:digital object identifiers
1499:telnet://192.0.2.16:80/
1144:
1114:is the second part of the
754:), unreserved characters (
652:
36:
29:
4278:
3158:World Wide Web Consortium
3136:World Wide Web Consortium
3116:World Wide Web Consortium
3093:World Wide Web Consortium
3058:Putting Namespaces to Use
2818:. Network Working Group.
2565:. Network Working Group.
2455:. Network Working Group.
2374:. Network Working Group.
2296:. Network Working Group.
2242:. Network Working Group.
2186:. Network Working Group.
2112:. Network Working Group.
2068:. Network Working Group.
1867:, published in June 2015.
1812:Uniform Naming Convention
1802:Internet resource locator
1722:. It is commonly used in
1106:is the first part of the
1069:URIs, the last part of a
954:), that may consist of a
836:This is represented in a
812:URI = scheme ":" path
683:characters consisting of
430:for example, refines the
249:Uniform Resource Locators
4403:Uniform resource locator
4012:Microformat vocabularies
3684:Information architecture
1235:component preceded by a
533:Uniform Resource Locator
378:The publication of IETF
309:Uniform Resource Locator
123:
37:Not to be confused with
3901:Rule Interchange Format
3664:Collective intelligence
3409:IEEE Internet Computing
3402:Whitehead, E.J (1998).
3062:Sams Teach Yourself XML
3054:Morrison, Michael Wayne
2437:; J. Gettys; J. Mogul;
1924:, p. 1, "Abstract"
1897:(obsoleted by RFC
1192:key1=value1;key2=value2
475:httpRange-14 resolution
348:but did not standardize
78:more precise citations.
3177:Connolly, Daniel "Dan"
2986:Harold, Elliotte Rusty
2840:Obsoleted by RFC
2777:Best Current Practice.
2505:. Updated by RFC
2477:Obsoleted by RFC
2408:. Updated by RFC
2318:Obsoleted by RFC
2268:. Updated by RFC
2264:Obsoleted by RFC
2208:Obsoleted by RFC
2142:. Updated by RFC
2134:Obsoleted by RFC
1486:tel:+1-816-555-1212
1124:"/questions"
1104:"/questions"
625:
580:
526:urn:isbn:0-486-27557-4
257:Uniform Resource Names
4398:Uniform resource name
3471:W3C URI Clarification
2783:. Obsoletes RFC
2687:"URL Standard: Goals"
2501:. Obsoletes RFC
2394:Internet Standard 66.
2180:R. Moats (May 1997).
1557:is either a URI or a
1218:attribute–value pairs
1090:and PATH_INFO, etc.).
997:addresses must be in
966:). Use of the format
962:preceded by a colon (
778:), and the character
504:Uniform Resource Name
449:In August 2002, IETF
313:Uniform Resource Name
295:core technologies of
230:Web Ontology Language
4630:History of hypertext
4381:Resource identifiers
3699:Knowledge management
3694:Knowledge extraction
2779:Updated by RFC
1623:appearing after the
1465:└────┬─────────────┘
999:dot-decimal notation
332:Request for Comments
32:URI (disambiguation)
4640:Interactive fiction
4533:Object hyperlinking
4355:Adaptive hypermedia
3971:Common vocabularies
3925:Semantic annotation
3623:Semantic publishing
3422:10.1109/4236.722228
3336:"Syntax Components"
3189:. sec. 8.2.1.
2420:. Updates RFC
2396:Obsoletes RFC
2272:. Updates RFC
1987:"W3 Naming Schemes"
1827:List of URI schemes
1700:http://a/b/c/d;p?q
1638:, the value of the
1592:, the value of the
1245:fragment identifier
1212:), consisting of a
850:The URI comprises:
833:authority = host
685:reserved characters
655:List of URI schemes
516:William Shakespeare
483:content negotiation
177:Roy Thomas Fielding
108:
4700:Internet Standards
4695:Internet protocols
3719:Digital humanities
3608:Semantic computing
3598:Semantic analytics
3582:Rule-based systems
2992:(Third ed.).
2206:Proposed Standard.
1559:relative reference
1061:By convention, in
571:W3C Recommendation
512:ISBN 0-486-27557-4
398:In December 1999,
358:In December 1994,
228:defined using the
4675:
4674:
4635:Interactive novel
4563:URL normalization
4513:Internet bookmark
4345:Hypertext fiction
4287:
4286:
4250:irc / irc6 / ircs
4056:
4055:
4052:
4051:
3962:Facebook Platform
3849:
3848:(no W3C standard)
3841:
3834:
3827:
3820:
3813:
3806:
3799:
3785:
3749:Web Science Trust
3669:Description logic
3628:Semantic reasoner
3618:Semantic matching
3546:Semantic networks
3179:(November 1995).
3056:(2006). "Hour 5:
3003:978-0-7645-4986-1
1642:attribute of the
1621:system identifier
1604:attribute of the
1596:attribute of the
1537:) fit within the
1416:└───────┬───────┘
1410:└───────┬───────┘
1359:└───────┬───────┘
1197:
1196:
1139:URI containing a
968:username:password
792:percent-encodings
645:has no protocol.
278:Tim Berners-Lee's
206:
205:
149:January 2005
104:
103:
96:
16:(Redirected from
4717:
4314:
4307:
4300:
4291:
4083:
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4069:
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3844:
3837:
3830:
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3500:
3493:
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3439:
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3436:
3395:
3393:
3392:
3372:
3370:
3369:
3357:
3355:10.17487/RFC3986
3334:(January 2005).
3328:Fielding, Roy T.
3324:Berners-Lee, Tim
3319:
3317:
3316:
3304:
3302:10.17487/RFC3986
3285:(January 2005).
3279:Fielding, Roy T.
3275:Berners-Lee, Tim
3270:
3268:
3267:
3255:
3253:10.17487/RFC2396
3230:Fielding, Roy T.
3226:Berners-Lee, Tim
3221:
3219:
3218:
3198:
3196:10.17487/RFC1866
3173:Berners-Lee, Tim
3168:
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3084:
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3069:
3049:
3032:
3030:10.17487/RFC7595
3007:
2994:Wiley Publishing
2973:
2967:
2959:
2957:
2956:
2944:
2942:10.17487/RFC3986
2929:(January 2005).
2923:Fielding, Roy T.
2919:Berners-Lee, Tim
2905:
2899:
2893:
2887:
2881:
2875:
2869:
2863:
2857:
2851:
2845:
2836:
2827:
2825:10.17487/RFC1866
2810:Berners-Lee, Tim
2806:
2800:
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2775:
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2756:10.17487/RFC7595
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2572:10.17487/RFC3305
2556:
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2473:
2464:
2462:10.17487/RFC2616
2431:
2425:
2392:
2383:
2381:10.17487/RFC3986
2368:(January 2005).
2354:
2323:
2314:
2305:
2303:10.17487/RFC2732
2287:
2281:
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2251:
2249:10.17487/RFC2396
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2195:
2193:10.17487/RFC2141
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2171:
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2121:
2119:10.17487/RFC1738
2096:
2090:
2086:
2077:
2075:10.17487/RFC1630
2060:Berners-Lee, Tim
2056:
2050:
2049:
2047:
2046:
2040:
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2025:
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2016:
2008:
2002:
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1999:
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1641:
1626:
1611:
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1603:
1599:
1595:
1582:markup languages
1576:
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1255:
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1211:
1206:
1205:
1193:
1187:
1179:
1173:
1162:Query delimiter
1159:
1125:
1113:
1105:
1099:
1079:
1078:
1055:
1051:
1046:file system path
1043:
1039:
1034:
1033:
1022:
1017:
1016:
1007:
983:
982:
973:
969:
965:
958:and an optional
953:
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859:
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788:identifying data
781:
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558:
542:
538:
521:Romeo and Juliet
433:
293:World Wide Web's
156:
154:
109:
99:
92:
88:
85:
79:
74:this article by
65:inline citations
52:
51:
44:
21:
4725:
4724:
4720:
4719:
4718:
4716:
4715:
4714:
4680:
4679:
4676:
4671:
4613:
4587:
4568:URL redirection
4548:Source tracking
4422:
4376:
4323:
4318:
4288:
4283:
4274:
4213:
4092:
4087:
4057:
4048:
4007:
3966:
3920:
3874:
3753:
3744:Web engineering
3714:Digital library
3652:
3633:Semantic search
3613:Semantic mapper
3603:Semantic broker
3586:
3555:
3509:
3504:
3446:
3434:
3432:
3401:
3398:
3390:
3388:
3375:
3367:
3365:
3348:. sec. 3.
3332:Masinter, Larry
3322:
3314:
3312:
3283:Masinter, Larry
3273:
3265:
3263:
3236:(August 1998).
3234:Masinter, Larry
3224:
3216:
3214:
3171:
3163:
3161:
3148:
3140:
3138:
3129:
3121:
3119:
3106:
3098:
3096:
3087:
3079:
3077:
3072:
3066:Sams Publishing
3052:
3010:
3004:
2996:. p. 291.
2984:
2980:
2978:Further reading
2960:
2954:
2952:
2927:Masinter, Larry
2917:
2914:
2909:
2908:
2900:
2896:
2888:
2884:
2876:
2872:
2866:Morrison (2006)
2864:
2860:
2852:
2848:
2808:
2807:
2803:
2797:Lawrence (2014)
2795:
2791:
2738:
2737:
2733:
2725:
2721:
2713:
2706:
2698:
2694:
2685:
2684:
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2657:
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2620:
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2606:
2604:
2595:
2594:
2590:
2558:
2557:
2550:
2541:
2539:
2530:
2529:
2525:
2449:(August 1999).
2433:
2432:
2428:
2356:
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2326:
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2288:
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2227:
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2179:
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1835:
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1712:
1707:
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1655:
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1601:
1597:
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1531:
1528:
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1522:
1519:
1515:
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1506:
1503:
1500:
1496:
1493:
1491:└──────┬──────┘
1490:
1487:
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1480:
1477:
1474:
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1467:
1464:
1461:
1457:
1454:
1451:
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1446:└──────┬──────┘
1445:
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1436:
1432:
1428:
1427:
1424:
1421:
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1415:
1412:
1409:
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1403:
1399:
1397:┌──────┴──────┐
1396:
1393:
1390:
1387:
1384:
1381:
1377:
1376:
1373:
1370:
1367:
1364:
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1358:
1355:
1352:
1348:
1346:┌──────┴──────┐
1345:
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1336:
1333:
1328:
1319:
1315:
1311:
1307:
1303:
1299:
1295:
1291:
1287:
1283:
1279:
1275:
1271:
1267:
1263:
1253:
1240:
1230:
1229:
1220:separated by a
1209:
1203:
1202:
1191:
1185:
1177:
1171:
1143:part without a
1076:
1075:
1053:
1049:
1041:
1037:
1031:
1030:
1020:
1014:
1013:
1006:
980:
979:
971:
967:
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945:
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909:
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891:
885:
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875:
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867:
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815:A component is
813:
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657:
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556:
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536:
510:(ISBN) system,
500:
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431:
356:
274:
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173:Tim Berners-Lee
152:
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146:First published
125:
100:
89:
83:
80:
70:Please help to
69:
53:
49:
42:
35:
28:
23:
22:
15:
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11:
5:
4723:
4721:
4713:
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4702:
4697:
4692:
4682:
4681:
4673:
4672:
4670:
4669:
4664:
4663:
4662:
4655:World Wide Web
4652:
4647:
4642:
4637:
4632:
4627:
4625:Digital poetry
4621:
4619:
4615:
4614:
4612:
4611:
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4595:
4593:
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4588:
4586:
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4555:
4550:
4545:
4543:Screen hotspot
4540:
4535:
4530:
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4520:
4515:
4510:
4505:
4500:
4495:
4486:
4484:Inline linking
4481:
4476:
4471:
4466:
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4456:
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3657:Related topics
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2585:Informational.
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2447:T. Berners-Lee
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2384:. STD 66.
2358:T. Berners-Lee
2324:
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2230:T. Berners-Lee
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2100:T. Berners-Lee
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2088:Informational.
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1978:
1961:Palmer, Sean.
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3068:. p. 91.
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2990:XML 1.1 Bible
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2062:(June 1994).
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2041:. p. 501
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2017:. p. 193
2013:
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1555:URI reference
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1539:Handle System
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1504:└─────┬─────┘
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687:(gen-delims:
686:
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498:URLs and URNs
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437:In 2001, the
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375:in May 1997.
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84:February 2024
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4705:Semantic Web
4677:
4553:transclusion
4498:HTTP referer
4489:inbound link
4469:URI fragment
4459:deep linking
4418:Semantic URL
3947:Microformats
3886:Common Logic
3782:
3591:Applications
3507:Semantic Web
3433:. Retrieved
3416:(5): 34–40.
3413:
3407:
3389:. Retrieved
3381:
3366:. Retrieved
3340:
3313:. Retrieved
3287:
3264:. Retrieved
3238:
3215:. Retrieved
3181:
3162:. Retrieved
3139:. Retrieved
3120:. Retrieved
3097:. Retrieved
3078:. Retrieved
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2953:. Retrieved
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