If you look at the picture above, Facebook is concerned about the "unfounded rumors" that have spread on the social network and have enabled the option to block indexing of profiles search engines.
To do this they must go to this link and uncheck the "Allow" to "public search results, if they do not direct link works follow these steps: They go to Settings -> Privacy settings -> Search, and then uncheck it I told them the option before.
There also have a link to see a preview of your profiles from the site of an "ordinary" people so they can see what information you see these people, which potentially could reach motoresd and finding them by searching.