It's a form of one signal-on for people developed and implemented to make logging in easier for end-users. Using social login customers can signal into any 3rd-bash website without owning to build an account. Definitely this matches "x" instead of "y", but it really solutions the "is there a match?" https://geniusbookmarks.com/story19317289/5-tips-about-prestashop-seo-automatic-open-graph-twitter-cards-tags-on-all-pages-you-can-use-today