在腾讯云的机器查询也是返回也是同 C 段的 IP
~$ nslookup dotnet.microsoft.com 223.5.5.5
Server: 223.5.5.5
Address: 223.5.5.5#53
Non-authoritative answer:
dotnet.microsoft.com canonical name = dotnetwebsite.azurefd.net.
Name: dotnetwebsite.azurefd.net
Address: 156.251.239.114
dotnetwebsite.azurefd.net canonical name = firstparty-azurefd-prod.trafficmanager.net.
firstparty-azurefd-prod.trafficmanager.net canonical name = shed.dual-low.part-0045.t-0009.t-msedge.net.
shed.dual-low.part-0045.t-0009.t-msedge.net canonical name = part-0045.t-0009.t-msedge.net.
Name: part-0045.t-0009.t-msedge.net
Address: 2620:1ec:bdf::73
Name: part-0045.t-0009.t-msedge.net
Address: 2620:1ec:46::73
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