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我正在从印度进行检查，BSNL 家庭宽带连接，标准请求的 URI 获得了出色的 ping 响应，通常通常在 40 到 100 毫秒之间

E:\Documents and Settings>ping storage.googleapis.com

Pinging storage-ugc.l.googleusercontent.com [74.125.236.106] with 32 bytes of da
ta:

Reply from 74.125.236.106: bytes=32 time=93ms TTL=56
Reply from 74.125.236.106: bytes=32 time=93ms TTL=56
Reply from 74.125.236.106: bytes=32 time=93ms TTL=56
Reply from 74.125.236.106: bytes=32 time=93ms TTL=56

Ping statistics for 74.125.236.106:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 93ms, Maximum = 93ms, Average = 93ms

而 CNAME 重定向的 URI 通常在 280 到 400 毫秒之间没有得到类似的 ping 响应。

E:\Documents and Settings>ping c.storage.googleapis.com

Pinging storage.l.googleusercontent.com [74.125.135.128] with 32 bytes of data:

Reply from 74.125.135.128: bytes=32 time=315ms TTL=44
Reply from 74.125.135.128: bytes=32 time=296ms TTL=44
Reply from 74.125.135.128: bytes=32 time=312ms TTL=44
Reply from 74.125.135.128: bytes=32 time=312ms TTL=44

Ping statistics for 74.125.135.128:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 296ms, Maximum = 315ms, Average = 308ms

CNAME 重定向是否有任何替代 URI。

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