Template:Citation Style documentation/registration: Difference between revisions

Citations of online sources that require registration or a subscription are acceptable in Wikipedia as documented in [[WP:PAYWALL|Verifiability § Access to sources]]<!-- {{Section link|Wikipedia:Verifiability|Access to sources}} -->. As a courtesy to readers and other editors, editors should<!-- can --> signal the access restrictions of the external links included in a citation.

** [[File:Lock-gray-alt-2.svg|9px|link=|alt=Free registration required|Free registration required]] <code>registration</code>: a free registration is required to access the source

** [[File:Lock-gray-alt-2.svg|9px|link=|alt=Free access subject to limited trial, subscription normally required|Free access subject to limited trial, subscription normally required]] <code>limited</code>: there are other constraints (such as a cap on daily views) to freely access this source

** [[File:Lock-red-alt-2.svg|9px|link=|alt=Paid subscription required|Paid subscription required]] <code>subscription</code>: the source is only accessible via a paid subscription ("[[paywall]]")

As there are often multiple external links with different access levels in the same citation, these values are attributed to a particular external link.

Sources linked by {{para|url}}, {{para|article-url}}, {{para|chapter-url}}, {{para|contribution-url}}, {{para|entry-url}}, {{para|map-url}}, and {{para|section-url}} are presumed to be free-to-read.<ref name=NotRef>{{NotRef}}</ref> When they are not free-to-read, editors should mark those sources with the matching access-indicator parameter so that an appropriate icon is included in the rendered citation. Because the sources linked by these url-holding parameters are presumed to be free-to-read, they may not be marked as <code>free</code>.

{| class="wikitable"

! URL !! Access !! Allowed keywords

| {{para|url}} || {{para|url-access}} || rowspan="7" | <code>registration</code> [[File:Lock-gray-alt-2.svg|9px|link=|alt=Free registration required|Free registration required]]<br /><code>limited</code> [[File:Lock-gray-alt-2.svg|9px|link=|alt=Free access subject to limited trial, subscription normally required|Free access subject to limited trial, subscription normally required]]<br /><code>subscription</code> [[File:Lock-red-alt-2.svg|9px|link=|alt=Paid subscription required|Paid subscription required]]

| {{para|article-url}} || {{para|article-url-access}}

| {{para|chapter-url}} || {{para|chapter-url-access}}

| {{para|contribution-url}} || {{para|contribution-url-access}}

| {{para|entry-url}} || {{para|entry-url-access}}

| {{para|map-url}} || {{para|map-url-access}}

| {{para|section-url}} || {{para|section-url-access}}

{| class=wikitable

! url parameter !! access icon parameter !! supported keywords

| {{para|bibcode}} || {{para|bibcode-access}} ||rowspan=6|<code>free</code> – [[File:Lock-green.svg|9px|link=|alt=Freely accessible|Freely accessible]] – the source is free to read for anyone (not supported by {{para|url-access}})

| {{para|doi}} || {{para|doi-access}}

| {{para|hdl}} || {{para|hdl-access}}

| {{para|jstor}} || {{para|jstor-access}}

| {{para|ol}} || {{para|ol-access}}

| {{para|osti}} || {{para|osti-access}}

Links inserted by named identifiers are presumed to lie behind a paywall or registration barrier – exceptions listed below. When they are free-to-read, editors should mark those sources with the matching access-indicator parameter so that an appropriate icon is included in the rendered citation.  Because the sources linked by these named-identifier parameters are not presumed to be free-to-read, they may not be marked as <code>limited</code>, <code>registration</code>, or <code>subscription</code>.

{| class="wikitable"

! Identifier!! Access !! Allowed keywords

| {{para|bibcode}} || {{para|bibcode-access}} || rowspan="7" | <code>free</code> [[File:Lock-green.svg|9px|link=|alt=Freely accessible|Freely accessible]]

| {{para|doi}} || {{para|doi-access}}

| {{para|hdl}} || {{para|hdl-access}}

| {{para|jstor}} || {{para|jstor-access}}

| {{para|ol}} || {{para|ol-access}}

| {{para|osti}} || {{para|osti-access}}

| {{para|s2cid}} || {{para|s2cid-access}}

Some named-identifiers are always free-to-read. For those named-identifiers there are no access-indicator parameters, the access level is automatically indicated by the template. These named identifiers are: