your WhatsApp ping is 10x higher though,.....
Not that surprising given the server the request went to is in the United States. Light can only travel so fast.
Well I am not sure if this is necessarily true. Because as we can see
https://ipinfo.io/2.22.132.47
2.22.132.47 Cambridge, Massachusetts, United States
C:\Windows\system32>ping viber.com
Pinging viber.com [2.22.132.47] with 32 bytes of data:
Reply from 2.22.132.47: bytes=32 time=6ms TTL=51
Reply from 2.22.132.47: bytes=32 time=6ms TTL=51
Reply from 2.22.132.47: bytes=32 time=6ms TTL=51
Reply from 2.22.132.47: bytes=32 time=6ms TTL=51
Ping statistics for 2.22.132.47:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 6ms, Maximum = 6ms, Average = 6ms
Viber.com pings are displaying for me 6ms from a US server, how do you explain that?