Editing Help:Link (section)

=== To a section ===
The navigable links to a section of a page are wikilinks, redirects, and URL-styled wikilinks.
The difference between a redirect and a wikilink is most pronounced where a redirect targets a section,
when you cannot add your own <kbd>#''section''</kbd>{{space}} to it
even though it appears as <code>[<nowiki/>[''page name'']]</code>.
A wikilink that links to a section ''and'' that appears as <code>[<nowiki/>[''page name''#''section name'']]</code> 
can link to that section through the canonical page name (the title on the page with the actual content) 
or through the page name of any redirect to it, in which case the page name is the name of a redirect page.

To find wikilinks to a section requires two or more reports.

# '''Show redirects only''', an external tool available from the '''What&nbsp;links&nbsp;here''' page, reports redirects to the ''content'' of a section. (No matter which page ''name'' you give it, you get all the redirect page names.) Look past any "'''''No anchor or section'''''" group of redirects, and any "invalid" sections, to see if your particular section name is explicitly listed, because then the redirect pages under it can have incoming links that will then go to that section.<ref> Redirects that link to a section are part of a valiant effort to enable changing a section heading without breaking a link to the ''name''. That effort also must ask editors who want to link to a section to always check the wikitext of the target section, and there find, read and understand the plan to link to a single redirect page instead. Then that redirect page links to the section. ("Invalid" redirects to a non-existing anchor or section occur when this is overlooked.) </ref> ("What Links Here" also has a "show redirects" report, but it doesn't specify if the redirect goes to any particular section.)
# Use "What Links Here" on any redirect pages found in the previous step. 
# Use {{tl|Links to}} to create a group of search links that will each report some links to a section. It can work with only one page name at a time. For each search link given, just change the page name in the query to each redirect in turn.

The more redirects there are, the more reports there are to run.
If there are no redirects involved, one report from "Links to" is enough.