I know many people that just type in the usual Google public DNS when they need to add one to a computer or server. It’s easy right!? Just remember 18.104.22.168 and/or 22.214.171.124 it’s a no brainer! But what are we REALLY doing when we use Google for DNS?
Your chosen DNS servers translate domains (xyz.com) to IP addresses (xxx.xxx.xxx.xxx). So your name servers know every domain you have accessed since they did the job of translating them to IP address of the servers hosting the site. This is some pretty juicy information for a company like Google or even your ISP that provides your DSL or Cable Internet access. If you are already using Google services like search and Gmail using their name servers adds to the bounty of information they collect about you.
Maybe you just hate that your ISP hijacks your browser every time you type in an address wrong? Giving your their recommendations that are ad driven.
“How can I not leak all my information!?”
You can also take it one step further and use DNScrypt to secure your queries. Just choose your closest geographic OpenNIC DNS servers from the list that offer DNScrypt support.
Another added bonus of using OpenNIC is they support Namecoin (.bit) domain names and offers for free a list of their own Top Level Domains (TLDs).
It is hard to wean yourself off of services like Google that are in actuality a key player in what many call the surveillance economy. Which equates to giving your information and privacy away for free services. A simple change like your DNS and using a search engine that does not track you can be a huge step to taking back control of your privacy.