Anchor points need a unique identifier that is associated with a slightly-modified HTML hyperlink.

How to Create an Anchor Link in WordPress. If you have a long post or page on your WordPress blog, consider creating an anchor link. An anchor link, or jump tag, enables you to create a hyperlink ...

To link to an anchor from a different page In any hyperlink field, use the relative path of the destination page followed by .html# [anchor id] ...

The Google Operating System blog noticed that some of the One line Sitelinks are now supporting links within the same page, that anchor the searcher down ...