使用代理时，谷歌cn 域名为什么会被替换成com

[shichayong]

我在v2rayNG客户端日志中发现：
03-03 15:31:53.475 I/GoLog (15112): [Info] app/dns: domain replaced: services.googleapis.cn -> googleapis.com
03-03 15:31:52.236 I/GoLog (15112): [Info] [2468446990] transport/internet/tcp: dialing TCP to tcp:[2607:f8b0:4007:805::2004]:443
03-03 15:31:52.236 I/GoLog (15112): [Info] [2468446990] proxy/freedom: dialing to tcp:[2607:f8b0:4007:805::2004]:443
03-03 15:31:52.236 I/GoLog (15112): from 127.0.0.1:39052 accepted //services.googleapis.cn:443 [socks -> direct]
03-03 15:31:52.236 I/GoLog (15112): [Info] app/dns: domain replaced: services.googleapis.cn -> googleapis.com
03-03 15:31:52.236 I/GoLog (15112): [Info] [2468446990] app/dispatcher: taking detour [direct] for [tcp:services.googleapis.cn:443]
03-03 15:31:52.235 I/GoLog (15112): [Info] [2468446990] app/dispatcher: sniffed domain: services.googleapis.cn

我的cn 域名被替换了，导致解析的IP无法连接，请问这是怎么回事？