Recently I noticied that some of social networks (ex. twitter) domains points to an IP in my local ISP. (
ping twitter.com resolved to local ip:
Note: now twitter.com resolves to IP in USA.
I understand that cdn can be hosted locally, but I thought that the main https connection should be served from some-centralized-twitter-datacenter.
The certificates were correct and firefox (latest version with certificate patrol) didn't complain about anything.
From the news, I read that government lately purchased new surveillance software (after hacking team scandal).
Is this normal? Or the ISP is doing some smart man in the middle?