Ecco i risultati del test:

TCP options string = 020404ec01010402
MTU = 1300
MTU is not fully optimized for broadband. Consider increasing your MTU to 1500 for better throughput.
MSS = 1260
MSS is not fully optimized for broadband (although it might work well for slower connections). Consider increasing your MTU value.

Default Receive Window (RWIN) = 25200
RWIN Scaling (RFC1323) = 0 bits
Unscaled Receive Window = 25200

RWIN is a multiple of MSS
Other values for RWIN that might work well with your current MTU/MSS:
524160 (MSS x 52 * scale factor of 8)
262080 (MSS x 52 * scale factor of 4)
131040 (MSS x 52 * scale factor of 2)
65520 (MSS x 52)
bandwidth * delay product (Note this is not a speed test):

Your RcvWindow limits you to: 1008 kbps (126 KBytes/s) @ 200ms
Your RcvWindow limits you to: 403.2 kbps (50.4 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = ON
Time to live left = 119 hops

TTL value is ok.
Timestamps (RFC1323) = OFF
Selective Acknowledgements (RFC2018) = ON
IP type of service field (RFC1349) = 00000000

grazie