$ dig +trace github.com
; <<>> DiG 9.8.3-P1 <<>> +trace github.com
[...]
;; Received 488 bytes from 192.228.79.201#53(192.228.79.201) in 154 ms
github.com. 172800 IN NS ns1.p16.dynect.net.
github.com. 172800 IN NS ns3.p16.dynect.net.
github.com. 172800 IN NS ns2.p16.dynect.net.
github.com. 172800 IN NS ns4.p16.dynect.net.
;; Received 178 bytes from 192.42.93.30#53(192.42.93.30) in 54 ms
;; connection timed out; no servers could be reached
As of 2016-10-21T09:20:19Z, it's doing better:
--------------------------------------------------------------------
<Commodore Pet 16 Unix>:$ dig +trace github.com
; <<>> DiG 9.8.3-P1 <<>> +trace github.com
;; global options: +cmd
. 17430 IN NS i.root-servers.net.
. 17430 IN NS a.root-servers.net.
. 17430 IN NS b.root-servers.net.
. 17430 IN NS l.root-servers.net.
. 17430 IN NS d.root-servers.net.
. 17430 IN NS g.root-servers.net.
. 17430 IN NS h.root-servers.net.
. 17430 IN NS c.root-servers.net.
. 17430 IN NS e.root-servers.net.
. 17430 IN NS j.root-servers.net.
. 17430 IN NS k.root-servers.net.
. 17430 IN NS m.root-servers.net.
. 17430 IN NS f.root-servers.net.
;; Received 228 bytes from 8.8.8.8#53(8.8.8.8) in 382 ms
com. 172800 IN NS m.gtld-servers.net.
com. 172800 IN NS k.gtld-servers.net.
com. 172800 IN NS a.gtld-servers.net.
com. 172800 IN NS b.gtld-servers.net.
com. 172800 IN NS f.gtld-servers.net.
com. 172800 IN NS j.gtld-servers.net.
com. 172800 IN NS e.gtld-servers.net.
com. 172800 IN NS c.gtld-servers.net.
com. 172800 IN NS h.gtld-servers.net.
com. 172800 IN NS l.gtld-servers.net.
com. 172800 IN NS d.gtld-servers.net.
com. 172800 IN NS g.gtld-servers.net.
com. 172800 IN NS i.gtld-servers.net.
;; Received 488 bytes from 192.228.79.201#53(192.228.79.201) in 363 ms
github.com. 172800 IN NS ns1.p16.dynect.net.
github.com. 172800 IN NS ns3.p16.dynect.net.
github.com. 172800 IN NS ns2.p16.dynect.net.
github.com. 172800 IN NS ns4.p16.dynect.net.
;; Received 178 bytes from 192.42.93.30#53(192.42.93.30) in 134 ms
github.com. 300 IN A 192.30.253.113
github.com. 86400 IN NS ns4.p16.dynect.net.
github.com. 86400 IN NS ns3.p16.dynect.net.
github.com. 86400 IN NS ns1.p16.dynect.net.
github.com. 86400 IN NS ns2.p16.dynect.net.
;; Received 130 bytes from 2001:500:90:1::16#53(2001:500:90:1::16) in 25 ms
I ended up sending all my developers a patch to their hosts file... Hopefully they'll roll it back shortly.