HTTP resources are identified and located on the network by Uniform Resource Identifiers ( URIs )— or, more specifically, Uniform Resource Locators ( URLs )— using the < tt > http </ tt > or < tt > https </ tt > URI schemes.

Category: URI schemes

When referenced in the form of a Web URI, content IDs and message IDs are placed within the URI schemes cid and mid respectively, without the angle brackets:

Category: URI schemes

Examples include the names of Uniform Resource Identifier ( URI ) schemes and character encodings recommended for use on the Internet.

* Dictionary, an application included with Mac OS X. Online dictionaries can be accessed by setting it as the helper for ' dict ://' URI schemes.

Category: URI schemes

Category: URI schemes

* < tt > uri. arpa </ tt > – for dynamic discovery of Uniform Resource Identifier ( URI ) addressing schemes

Category: URI schemes

Category: URI schemes

The standard for Magnet URIs was developed in 2002, partly as a " vendor-and project-neutral generalization " of the and URI schemes used by eDonkey2000 and Freenet, respectively, and attempts to follow official IETF URI standards as closely as possible.

PURLs are used to curate the URL resolution process, thus solving the problem of transitory URIs in location-based URI schemes like HTTP.

Development versions of all major browsers support URI schemes beyond http: and https :, in particular, blob: URLs are supported.

Category: URI schemes

The sets of reserved and unreserved characters and the circumstances under which certain reserved characters have special meaning have changed slightly with each revision of specifications that govern URIs and URI schemes.

Category: URI schemes

Category: URI schemes

Furthermore, some URI schemes are not associated with any specific protocol ( e. g. "") and many others do not use the name of a protocol as their prefix ( e. g. "").

URI schemes should be registered with IANA, although non-registered schemes are used in practice.

The etymology and meaning of Akkad ( written a. ga. dè < sup > KI </ sup > or URI < sup > KI </ sup >) are unknown.

However, such documents will still be fully parsable in the non-standalone mode of validating parsers, which will signal an error if these external entities cannot be located with their specified public identifier ( FPI ) and / or system identifier ( a URI ), or are inaccessible.

SGML allows for public identifiers to be mapped to system identifiers in catalogs that are optionally made available to the URI resolvers used by document parsing software.

Notations are also completely opaque for XML and SGML parsers, so they are not differentiated by the type of the external entity that they may reference ( for these parsers they just have a unique name associated to a public identifier ( an FPI ) and / or a system identifier ( a URI )).

* all the external entities used by these standard document types are referenced by simple attributes, declared with the CDATA type in their standard DTD ( such as the " href " attribute of an anchor " a " element, or the " src " attribute of an image " img " element, whose values are interpreted as a URI, without needing any catalog of public identifiers, i. e., known FPI );

Note also that even in validating SGML or XML 1. 0 or XML 1. 1 parsers, the external entities referenced by an FPI and / or URI in declared notations are not retrieved automatically by the parsers themselves.

Instead, these parsers just provide to the application the parsed FPI and / or URI associated to the notations found in the parsed SGML or XML document, and with a facility for a dictionary containing all notation names declared in the DTD ; these validating parsers will also check the uniqueness of notation name declarations, and will report a validation error if some notation names are used anywhere in the DTD or in the document body but not declared:

* if the application can't use any notation ( or if their FPI and / or URI are unknown or not supported in their local catalog ), these notations may be either ignored silently by the application or the application could signal an error ;

If the XML document type declaration includes any SYSTEM identifier for the external subset, it can't be safely processed as standalone: the URI should be retrieved, otherwise there may be unknown named character entities whose definition may be needed to correctly parse the effective XML syntax in the internal subset or in the document body ( the XML syntax parsing is normally performed after the substitution of all named entities, excluding the five entities that are predefined in XML and that are implicitly substituted after parsing the XML document into lexical tokens ).

Such agreement is not inherent to RDF itself, although there are some controlled vocabularies in common use, such as Dublin Core Metadata, which is partially mapped to a URI space for use in RDF.

A URI DNSBL is a DNSBL that lists the domain names and IP addresses which are found in the " clickable " links contained in the body of spams, but generally not found inside legitimate messages.

URI DNSBLs are often confused with RHSBLs ( Right Hand Side BLs ).

In contrast to marginally effective and not-often-used RHSBLs, URI DNSBLs are very effective and are used by the majority of spam filters.

In the Apple iOS, a barcode reader is not natively included but more than fifty paid and free apps are available with both scanning capabilities and hard-linking to URI.

In NetKernel Uniform Resource Identifier ( URI ) addresses are used to identify

Both URNs ( names ) and URLs ( locators ) are URIs, and a particular URI may be a name and a locator at the same time.

: the term " uniform resource name " ( URN ) has been used historically to refer to both URIs under the " urn " scheme ( RFC 2141 ), which are required to remain globally unique and persistent even when the resource ceases to exist or becomes unavailable, and to any other URI with the properties of a name.

Because DOI names are short character strings, they are human-readable, may be copied and pasted as text, and fit into the URI specification.

* URI scheme, often referred to as " protocol "

In many cases, such elusive spams contain in their links domain names or IP addresses ( collectively referred to as a URIs ) where that URI was already spotted in previously caught spam and where that URI is not found in non-spam e-mail.

The < nowiki > OMS </ nowiki > element is a generic extension element that means whatever is specified in the content dictionary referred to in the < nowiki > cd </ nowiki > attribute ( this document can be found at the URI specified in the innermost < nowiki > cdbase </ nowiki > attribute dominating the respective < nowiki > OMS </ nowiki > element.