Domain Registration
The lifecycle of a domain name — registration, transfer, renewal, and expiration.
域名注册
The process of reserving a domain name for a specified period through a registrar.
域名注册商
ICANN-accredited organization authorized to sell domain name registrations.
注册人
Individual or organization that has registered and holds rights to a domain name.
WHOIS
Protocol for querying domain registration information including ownership and dates.
WHOIS 隐私保护
Service that masks a registrant's personal information in WHOIS records.
注册期限
The length of time (1-10 years) for which a domain name is registered.
域名续费
Process of extending a domain's registration before expiration.
域名转移
Moving a domain's management from one registrar to another.
EPP 码（授权码）
Unique authorization code required to transfer a domain between registrars.
宽限期
Time window after expiration during which a domain can be renewed at normal price.
赎回期
30-day period after grace period where a domain can be recovered at a higher fee.
已到期域名
Domain name whose registration was not renewed and may become available.
域名锁定
Security feature preventing unauthorized domain transfers.
自动续费
Registrar feature that automatically renews a domain before expiration.
注册商认证
ICANN's formal certification process authorizing an organization to sell domain registrations.
厚WHOIS与薄WHOIS
Two WHOIS data models: thin stores only technical data at the registry; thick centralizes all contact data.
域名转售商
Company that sells domain registrations on behalf of an accredited registrar without its own ICANN accreditation.
待删除（Pending Delete）
Final 5-day deletion phase after which a domain is released for anyone to register.
添加宽限期（AGP）
5-day window after registration during which a registrar can delete a domain for a full registry fee refund.
转移锁定（60天锁定）
Mandatory 60-day ban on outbound domain transfers after initial registration or a completed transfer.
域名品味
Exploiting the Add Grace Period to register and delete domains at no cost to test traffic potential.
域名风筝
Cycling a domain through repeated AGP deletions and re-registrations to control it indefinitely without paying fees.
注册商滥用联系方式
Mandatory public email and phone contact for reporting domain abuse to an ICANN-accredited registrar.
WHOIS 查询频率限制
Anti-abuse restriction limiting the number of WHOIS queries from a single source within a time window.