しかし、何度見てもヒドいなぁ。

% dnsqr a download.microsoft.com
1 download.microsoft.com:
256 bytes, 1+8+0+0 records, response, noerror
query: 1 download.microsoft.com
answer: download.microsoft.com 3600 CNAME download.microsoft.com.nsatc.net
answer: download.microsoft.com.nsatc.net 600 CNAME main.dl.ms.akadns.net
answer: main.dl.ms.akadns.net 300 CNAME intl.dl.ms.akadns.net
answer: intl.dl.ms.akadns.net 300 CNAME dl.ms.d4p.net
answer: dl.ms.d4p.net 7200 CNAME dl.ms.georedirector.akadns.net
answer: dl.ms.georedirector.akadns.net 3600 CNAME a767.ms.akamai.net
answer: a767.ms.akamai.net 20 A 118.155.230.27
answer: a767.ms.akamai.net 20 A 118.155.230.65