This process is called DNS resolution.
This hierarchical choice of server is important when discussing IP privacy and security.
Unfortunately, this is not always the case.
Thus, using a VPN for online anonymity and privacy becomes futile.
However, this does not protect your IP address from leaking.
If it does, you are suffering from a privacy leak in your system.
However, this convenience does come with a drawback.
It uses 128 bits addressing so the number of available IP addresses is now 2^128 a much higher number.
Unfortunately, the worldwide adoption of the newer IPv6 protocol has been too slow.
Some major websites support both of these protocols and serve the appropriate channel as per the client system.
When using such an out-of-date VPN service, websites supporting IPv4 alone are safely accessible using the VPN.
Thus, leaving your real IP address exposed.
However, there are some nuances you gotta be aware of when using a VPN on Windows.
DNS resolution is done in a particular hierarchical order on any operating system.
The first in order is the HOST file, where you could specify DNS mappings.
What this means is that you might be leaking your DNS outside of your VPN web link.
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