Faster web display: secret trick to manually change DNS

Google and others publish DNS servers that anyone can use for free. Generally called "public DNS" (* Image is an image)

When you enter a URL in your browser, behind the scenes a web page is displayed via a DNS (Domain Name System) server. Normally, the DNS server prepared by the subscription provider is used, but it is also possible to change to the so-called "public DNS". Well-known companies such as Google and Cisco have released it for free, and anyone can use it. [Visual Commentary] Click here for instructions on how to manually change DNS. Publish popular services

■Choose a Reliable Public DNS

Let's review how a DNS server works. Websites are managed using IP addresses as addresses on the Internet, but it is difficult for humans to handle a list of numbers. So domain names such as "google.com" are assigned. The role of the DNS server is to associate this IP address with the domain. The advantages of public DNS are speed and security. Whether the web display can be speeded up depends on the existing provider's DNS server. In general, a provider that completes processing within its own network has an advantage in terms of speed, but in the event of a failure, you can avoid trouble by switching to public DNS. Another advantage is that you can specify a public DNS with a clear identity when using public Wi-Fi. To use public DNS, register your publicly available IP address with Windows. (Writer Shunsuke Igarashi) [Nikkei PC21 January 2022 issue restructured]