Changes

<!-- There are four access levels split between the url-holding parameters and the identifier parameters. -->Four access levels can be used:

<!-- There are four access levels split between the url-holding parameters and the identifier parameters. -->Four access levels can be used:

*[[#Access indicator for named identifiers|access indicator for named identifiers]]:

*[[#Access indicator for named identifiers|access indicator for named identifiers]]:

** [[File:Lock-green.svg|9px|link=|alt=Freely accessible|Freely accessible]] <code>free</code>: the source is free to read for anyone

** [[File:Lock-green.svg|9px|link=|alt=Freely accessible|Freely accessible]] <code>free</code>: the source is free to read for anyone (from the viewpoint of the provider of the source &ndash; could still be blocked by client-side filtering or safeguarding, or distributor-based geoblocking<!-- to be distinguished from geoblocking by the provider of the source -->)

*[[#Access indicators for url-holding parameters|access indicators for url-holding parameters]]:

*[[#Access indicators for url-holding parameters|access indicators for url-holding parameters]]:

** [[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 registration required|Free registration required]] <code>registration</code>: a free registration with the provider of the source is required to access the source, even if a limited preview, abstract or review may still be available without registration

** [[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-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, a restriction to certain day or night times, or providing the contents only to certain IP ranges/locales on behalf of the provider of the source<!-- to be distinguished from geoblocking by other parties -->) to freely access this source as a whole

** [[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]]")

** [[File:Lock-red-alt-2.svg|9px|link=|alt=Paid subscription required|Paid subscription required]] <code>subscription</code>: the source as a whole is only accessible via a paid subscription with the provider of the source ("[[paywall]]"), even if a limited preview, abstract or review may still be available without subscription

As there are often multiple external links with different access levels in the same citation, each value is attributed to a specific external link.

As there are often multiple external links with different access levels in the same citation, each value is attributed to a specific external link.

=====Access indicators for url-holding parameters=====

=====Access indicators for url-holding parameters=====

Online 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>.

Online 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. 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 plainrowheaders"

{| class="wikitable plainrowheaders"

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

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

|}

|}

For example, this cites a web page that requires registration but not subscription:

For example, this cites a web page that requires registration but not subscription:

|}

|}

-->

-->

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>.

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.  When the sources linked by these named-identifier parameters are not presumed to carry a free-to-read full text (for instance because they're just abstracting services), they may not be marked as <code>limited</code>, <code>registration</code>, or <code>subscription</code>.

{| class="wikitable plainrowheaders"

{| class="wikitable plainrowheaders"