The primary use of this function is to support Link pages.

这个函数主要用来支持链接页面。

youdao

All pages link to a stock's fundamentals, technical indicators and discussion groups, reinforcing the site's three-point approach.

FORBES: Pick Of The Stock

For instance, a search result for Ford has a link to similar pages about GM, Chrysler and Toyota.

WSJ: Google Is Beacon In Web Confusion

Since Google ranks results based on the number of Web pages that link to them, cyber-criminals added thousands of links to their pages on forums and blog comment sections around the Web, pushing their pages to the top of the search engine's results.

FORBES: Magazine Article