Scheme.org redirects

Subdomain Destination
bigloo.scheme.org https://www-sop.inria.fr/indes/fp/Bigloo/
chez.scheme.org https://cisco.github.io/ChezScheme/
chibi.scheme.org https://synthcode.com/scheme/chibi/
chicken.scheme.org https://call-cc.org/
cyclone.scheme.org https://justinethier.github.io/cyclone/
faq.scheme.org http://community.schemewiki.org/?scheme-faq
gauche.scheme.org https://practical-scheme.net/gauche/
guile.scheme.org https://www.gnu.org/software/guile/
jazz.scheme.org http://www.jazzscheme.org/index.htm
kawa.scheme.org https://www.gnu.org/software/kawa/
mit.scheme.org https://www.gnu.org/software/mit-scheme/
mosh.scheme.org https://mosh.monaos.org/
r5rs.scheme.org http://schemers.org/Documents/Standards/R5RS/
r6rs.scheme.org http://www.r6rs.org/
r7rs.scheme.org http://r7rs.org/
racket.scheme.org https://racket-lang.org/
s7.scheme.org https://ccrma.stanford.edu/software/s7/
sagittarius.scheme.org https://ktakashi.github.io/
scm.scheme.org https://people.csail.mit.edu/jaffer/SCM
stklos.scheme.org https://stklos.net/
wiki.scheme.org http://community.schemewiki.org/
workshop.scheme.org https://www.schemeworkshop.org/
ypsilon.scheme.org http://www.littlewingpinball.com/doc/en/ypsilon/

Explanation

Some subdomains of Scheme.org are just HTTP redirects. Each of those subdomains has a DNS CNAME pointing to redirect.scheme.org.

The subdomain redirect.scheme.org itself has a CNAME pointing to the origin server of Scheme.org. This subdomain exists to make our dns zone easier to read. If the zone listed over 20 subdomains pointing to the origin server, it would be hard to figure out which sites are actually hosted on that server and which are mere redirects.

It may seem excessive to put so much effort into the readability of a DNS zone but the zone is the most central part of Scheme.org. The long-term maintenance of the domain relies on its structure being transparent to any interested party, not just to one or two sysadmins.

Maintenance

The ground truth lies in projects.pose. Search for redirect in that file and you will find everything pertinent.