On: Ask HN: What programming language is color.com built in?

[staunch]

  $ GET -e -d http://color.com/ | grep Server
  Server: Jetty(7.3.0.v20110203)

Jetty server, so presumably Java.

  $ host 50.17.223.164
  164.223.17.50.in-addr.arpa domain name pointer
  ec2-50-17-223-164.compute-1.amazonaws.com.

Hosted on EC2.

  $ host -t ns color.com
  color.com name server ns2.p18.dynect.net.
  color.com name server ns3.p18.dynect.net.
  color.com name server ns1.p18.dynect.net.
  color.com name server ns4.p18.dynect.net.

With Dyn (DynDNS) handling DNS.

[bmelton → staunch]

That could also represent JRuby, Jython, Scala, or any other language that runs in the JVM.