I made a change to my DNS. Why doesn't it show up?

all killer.  no filler.

It usually takes two business days for updates to be seen elsewhere on the web, including hosting information. This is standard Internet propagation time. Additionally, some Whois databases are not compatible with others. You may wish to use a central whois lookup, as one registrar may not carry another’s information. The best practice is always to look up a domain at the registrar of record. To find out who the registrar is for a name, use this resource:

http://www.internic.net/whois.html