For an earlier test, http even failed (instead of redirecting), but in any case, https appears to be the new standard for that site.
Applied. Gerald Index: rsync.html =================================================================== RCS file: /cvs/gcc/wwwdocs/htdocs/rsync.html,v retrieving revision 1.20 diff -u -r1.20 rsync.html --- rsync.html 2 Jan 2011 20:10:48 -0000 1.20 +++ rsync.html 28 Jan 2017 22:31:03 -0000 @@ -10,7 +10,7 @@ <h1>GCC: Anonymous read-only rsync access</h1> <p>We are offering our SVN repository and various other data like our FTP -site through anonymous <a href="http://rsync.samba.org">rsync</a>.</p> +site through anonymous <a href="https://rsync.samba.org">rsync</a>.</p> <p>That way you can make local copies of the GCC SVN repository to ease the burden on the GCC main site, and browse the source locally.</p>