– Facebook uses https:// protocol. URLs with http:// (like the one in this article) are not secure.
The existence of http-free.cinyourrc.facebook.com raises several questions about its intended use and potential implications: http- free.cinyourrc.facebook.com
These links are frequently found on "blocklists" used by privacy-focused users to stop background tracking or data syncing. Content Strategy for Facebook-Related Pages – Facebook uses https:// protocol