How to check the domain name registrar?

How do domain name registrars check? I believe that many inexperienced people are helpless about this. For this reason, this article summarizes the causes and solutions of the problem. Through this article, I hope you can solve this problem.

Domain name registrars can be queried via the whois function, an online "request/response" service.

Whois, is used to query the IP of the domain name and the transmission protocol of the owner and other information. Whois query can see the database of domain name details, mainly including: domain name owner, registrar, registration time, contact telephone number and domain name status.

WHOIS Server runs on port 43 in the background. When an Internet user searches for a domain name (or host, contact, etc.), WHOIS Server first establishes a TCP connection with the Client, then receives the information requested by the user and queries the background domain name database accordingly.

If there is a record in the database, it will feed relevant information such as owner, management information and technical contact information back to the Client. When the Server output ends, the Client closes the connection, and at this point, a query process ends.

Users can conduct whois query services on the website. For example, we can enter the domain name yisu.com and find out that the registrar of the domain name is Guangzhou Science and Technology Co., Ltd.

After reading the above, do you know how to check the domain name registrar? If you still want to learn more skills or want to know more related content, welcome to pay attention to the industry information channel, thank you for reading!