Yahoo site is down, or rather, DNS servers are not returning timely responses

What a huge snafu.  Yahoo! users on Comcast (and possibly other ISPs) are not able to reach www.yahoo.com or any of the numerous services (most important being mail.yahoo.com).  I did a 'dig' trace on their DNS and it seems they host their own DNS.  Not all bad as the IP addresses seem to be in different geographic areas.  However, the first two are failing for me.  I wonder if Yahoo! would be better served by outsourcing DNS to one of the Anycast DNS providers such as Dynect or UltraDNS.  Of course, with the sheer number of lookups, it may be very costly!


yahoo.com.  172800 IN NS ns1.yahoo.com. (68.180.131.16)
 yahoo.com.  172800 IN NS ns2.yahoo.com. (68.142.255.16)
 yahoo.com.  172800 IN NS ns3.yahoo.com. (121.101.152.99)
 yahoo.com.  172800 IN NS ns4.yahoo.com. (68.142.196.63)
 yahoo.com.  172800 IN NS ns5.yahoo.com. (119.160.247.124)

The mess on Twitter:


  1. ‎
    ITArtillery‎: 4 out of 5 of Yahoo's DNS server are having issues, no reply at all. Email, IM, Homepage all down. #Yahoo #fubar
    Twitter - 1 minute ago

  2. ‎
    DailyDustUp‎: Hoping for some answers - fast - from #Yahoo on why it is down (and since it hosts my web site, why it is down as well)
    Twitter - 1 minute ago

  3. ‎
    TJNeonLimelight‎: Wow...Yahoo is down? I cant get into mail or My Yahoo.
    Twitter - 1 minute ago

  4. ‎
    exosphere3d‎: yahoo servers seem to be down, at least when accessing from comcast. that means our webservers and email are out temporarily
    Twitter - 1 minute ago

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