What is the Google search operator that lists pages that link to a specific website?

The query [related:] will list web pages that are “similar” to a specified web page. For instance, [related:www.google.com] will list web pages that are similar to the Google homepage. Note there can be no space between the “related:” and the web page url.

For More Information Please Refer: https://sites.google.com/site/resourcesandsearchstrategies/google/advanced-searching-in-google