Know everything about any domain name by using WHOIS

WHOIS is an internet protocol which can be used to look up who owns which online resources such as domain names and IP addresses, at any given time. It is thanks to WHOIS lookup, that you may find out when a domain name was created, when it’s set to expire, who owns it and how to contact them. Learn how to use this simple yet very useful online tool.

您該如何使用 WHOIS 搜尋引擎來查詢域名的公開資料？

雖然網路上有大量的 WHOIS 查詢工具，但是我們還是決定建立自己的 免費 WHOIS 搜尋系統，我們盡可能的製作簡易使用的搜尋工具。在開啟我們的 WHOIS 搜尋工具之後，您只需要輸入要搜尋的網域名稱。搜尋工具就會顯示所有訊息，並且會清楚的顯示所有訊息。

WHOIS 是查詢 網域名稱是否可以註冊 最簡單的方法。如果域名已經註冊，您可以透過 WHOIS 上顯示的資料聯繫所有權人，與對方協商購買。如果您查詢的域名沒有在使用、或是指向過時的網站，則很有可能域名到期後就會釋出。在這種情況下，您就能夠新註冊該域名。

WHOIS 公開資訊中包含了什麼資料？

Looking up any domain name using WHOIS lets you see where it is registered, which DNS servers the domain name redirects to, its creation, renewal, and expiration dates, as well as every public contact information that exist which allows you to contact its owner, or even transfer the domain name to another registrar if it’s one that’s already in your possession.

但是，並非所有的網域名稱資訊都是公開的。根據頂級域名的規範，您可以隱藏敏感資料的功能，使您可以隱藏某些資訊。在 Gandi，您可以免費使用註冊人隱藏服務來保護您的資料。

If you already own a domain name, WHOIS lookup is a great way to check what information is publicly visible. Making sure everything is accurate is also very important in a legal context, but also in order to facilitate future domain name transfers. WHOIS lookup is also an easy way to make sure your domain name’s renewal process has properly gone through.