On https://www.freebsd.org/internal/about.html the first paragraph says: "Naturally, all systems in the FreeBSD.org cluster run FreeBSD. The hardware and network connection have been generously provided by BSDi, Bytemark Hosting, Internet Systems Consortium, New York Internet, Yahoo!, and other contributors to the FreeBSD project." The link to BSDi is no longer working. I'm also not sure if the list of hardware/network sponsors is up-to-date.
A commit references this bug: Author: gjb Date: Thu Sep 21 13:13:15 UTC 2017 New revision: 50898 URL: https://svnweb.freebsd.org/changeset/doc/50898 Log: Update the list of hardware/network/bandwidth donors to reflect reality. While here, prefer https over http. PR: 222490 Submitted by: wosch Sponsored by: The FreeBSD Foundation Changes: head/en_US.ISO8859-1/htdocs/internal/about.xml
Fixed. Thanks!