doesn't using the url status.github.com imply the status and main website share a DNS service? No, but in this case they do. would a DNS problem that affected

doesn't using the url status.github.com imply the status and main website share a DNS service? No, but in this case they do. would a DNS problem that affected github.com also affect status.github.com? Yes, but DNS is very easy to harden against outages, it's redundant by design. Also Github seems to rent their nameservers from dyn.com who have a pretty good track record of not screwing up.