nanog mailing list archives

Re: ad.doubleclick.net missing from DNS?


From: Chris Adams <cmadams () hiwaay net>
Date: Tue, 27 Jul 2004 12:26:06 -0500


Once upon a time, Sean Donelan <sean () donelan com> said:
The A record for ad.doubleclick.net is missing from DNS.  This is
causing apparent web page slowdowns when viewing web sites containing ads
linked to ad.doubleclick.net

It looks like the problem isn't that the A record is missing, it is that
the nameservers are missing:

ask(ad.doubleclick.net)(A): ns1.doubleclick.net ns2.doubleclick.net ns3.doubleclick.net ns4.doubleclick.net
;; send_udp(216.73.86.10:53)
;; send_udp(216.73.87.10:53)
;; send_udp(216.73.85.10:53)
;; send_udp(216.73.81.10:53)
;; send_udp(216.73.86.10:53)
;; send_udp(216.73.87.10:53)
;; send_udp(216.73.85.10:53)
;; send_udp(216.73.81.10:53)
;; send_udp(216.73.86.10:53)
;; send_udp(216.73.87.10:53)
;; send_udp(216.73.85.10:53)
;; send_udp(216.73.81.10:53)
ad.doubleclick.net: query timed out

-- 
Chris Adams <cmadams () hiwaay net>
Systems and Network Administrator - HiWAAY Internet Services
I don't speak for anybody but myself - that's enough trouble.


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