Here's the English translation of the selected text:
The limit of 13 addresses for Root DNS was established when DNS was first designed. Currently, through Anycast Routing, requests to these addresses are distributed to one of the many DNS root servers located worldwide.
.com is good for seo Root DNS
브라우저에 google.com을 치면 무슨 일이 일어날까? (아니, 진짜로) - 네트워크편
기술 면접을 가게 되면 종종 듣게 되는 면접 질문입니다. 일반적으론 DNS, HTTPS에 대한 기본적인 작동 방식을 알고 있고 그걸 설명할 수 있는지 묻는 간단한 질문이고, 실제로도 그렇게 대답하면 아마 중간 이상은 갑니다. 하지만 그 뒤에서, 정말 브라우저가 하는 일은 무엇일까요? DNS로 IP 받아오고, HTTP 요청을 쓰는 것만이 웹 브라우저의 여정의 전부는 아니겠지요.
https://velog.io/@rtyu1120/%EB%B8%8C%EB%9D%BC%EC%9A%B0%EC%A0%80%EC%97%90-google.com%EC%9D%84-%EC%B9%98%EB%A9%B4-%EB%AC%B4%EC%8A%A8-%EC%9D%BC%EC%9D%B4-%EC%9D%BC%EC%96%B4%EB%82%A0%EA%B9%8C-%EC%95%84%EB%8B%88-%EC%A7%84%EC%A7%9C%EB%A1%9C-%EB%84%A4%ED%8A%B8%EC%9B%8C%ED%81%AC%ED%8E%B8

Alternative DNS root
alternative to the traditional DNS root zone
Alternative DNS root
The Internet uses the Domain Name System (DNS) to associate numeric computer IP addresses with human-readable names. The top level of the domain name hierarchy, the DNS root, contains the top-level domains that appear as the suffixes of all Internet domain names. The most widely used (and first) DNS root is administered by the Internet Corporation for Assigned Names and Numbers (ICANN). In addition, several organizations operate alternative DNS roots, often referred to as alt roots. These alternative domain name systems operate their own root name servers and commonly administer their own specific name spaces consisting of custom top-level domains.
https://en.wikipedia.org/wiki/Alternative_DNS_root

Seonglae Cho