Free Service Protects You From Malware
One of the best-known IP addresses on the internet is 126.96.36.199. It’s a DNS server run by Google.
DNS, or the Domain Name System, is the technology that allows you to type www.techsupportalert.com into your web browser instead of having to type the IP address of the server (188.8.131.52 in this case). DNS translates between things that people can understand, and things that web servers can understand.
You need a DNS service in order to browse the internet by name instead of number. Normally, the service is provided by your ISP. Your computer is probably configured to “obtain DNS settings automatically”, which means it will use the DNS server provided by your ISP.
For a while now, Google has offered a DNS server that you can use instead of your ISP’s one. It’s generally very fast and reliable (unlike some ISPs’ ones!). Its IP address is 184.108.40.206 and you use it by configuring your computer or router to do so.
A new DNS service called Quad 9 launched recently. As you might expect from the name, its IP address is 220.127.116.11. It’s run by a variety of respected IT and internet organisations including IBM. As well as converting names to numbers, it also helps to prevent you from inadvertently accessing web sites that might contain malware. It does this by simply not providing a conversion for suspicious sites. So your PC won’t be able to access them by name.
If you want to use Quad 9, you’ll need to change the network adaptor configuration on your PC in order to explicitly use 18.104.22.168 instead of whatever DNS server your ISP is providing. Assuming you’re using Windows 10, see https://www.windowscentral.com/how-change-your-pcs-dns-settings-windows-10 for details on how to do so.