域名与 WHOIS 工具套件
即时查询域名可用性、查询 WHOIS 域名所有者与注册信息、检查 DNS 记录、AI 生成品牌域名并评估域名价值。
域名工具
全功能在线域名工具箱：快速验证 15+ 主流后缀域名注册可用性，查询 WHOIS 域名所有者与注册信息 (Who is this)，实时检测全部 DNS 解析记录 (A, AAAA, MX, NS, TXT) 与 DNS 8.8.8.8 响应速度，单次批量查询多达 100 个域名，AI 智能起名生成创意品牌域名，监控即将到期与删除域名雷达，并智能测算域名市场公允价值 — 免费、高速、专业 (免费域名 / 域名注册 / 域名购买)。
所有工具
- 我的IP地址与设备信息检测
- WHOIS 查询与域名所有者查询
- 域名可用性查询与购买检测
- 批量域名查询 (Bulk Search)
- AI 智能域名与企业起名生成器
- DNS 与域名解析记录查询
- 域名估值与安全健康审计
- 域名历史与网页存档查询
- SSL 证书检查与过期监测工具
- 邮件安全检查工具 (SPF, DKIM, DMARC)
- 子域名查找与挖掘工具 (Subdomain Finder)
- 域名商标与所有权侵权检测
- 网络测速工具 (Speed Test)
- 网络诊断与故障排除工具
常见问题解答
What is a WHOIS lookup and how can I find out who owns a website?
A WHOIS lookup queries official registry records to reveal registrar details, registration and expiration dates, name servers, and domain lifecycle status (EPP codes) for any web address.
Can I check domain availability across multiple extensions in bulk?
Yes — ToolsTier allows you to check instant availability across 15+ popular extensions (.com, .net, .org, .ai, .io, etc.) or scan up to 100 custom domain combinations simultaneously using the Bulk Domain Scanner.
How do I inspect DNS records and verify email security?
Our DNS Lookup tool displays live A, AAAA, MX, NS, and TXT records with DNSSEC validation, while the Domain Report audit tool verifies SSL certificates and SPF/DMARC configurations to safeguard domain reputation.
How can I investigate past websites and historical domain records?
The Domain History & Archive tool allows you to explore domain records from initial registration, browse past website snapshots via the Wayback Machine, and inspect ownership evolution.
关于 PDF 与图像工具的常见疑问解答
快速解答高频搜索问题，助您高效处理各类文档
What is a WHOIS lookup and how can I find out who owns a website?
A WHOIS lookup queries official registry records to reveal registrar details, registration and expiration dates, name servers, and domain lifecycle status (EPP codes) for any web address.
Can I check domain availability across multiple extensions in bulk?
Yes — ToolsTier allows you to check instant availability across 15+ popular extensions (.com, .net, .org, .ai, .io, etc.) or scan up to 100 custom domain combinations simultaneously using the Bulk Domain Scanner.
How do I inspect DNS records and verify email security?
Our DNS Lookup tool displays live A, AAAA, MX, NS, and TXT records with DNSSEC validation, while the Domain Report audit tool verifies SSL certificates and SPF/DMARC configurations to safeguard domain reputation.
How can I investigate past websites and historical domain records?
The Domain History & Archive tool allows you to explore domain records from initial registration, browse past website snapshots via the Wayback Machine, and inspect ownership evolution.
官方权威 WHOIS & RDAP 查询
直接连接权威注册局，快速查询网站所有者信息、注册到期时间与 DNS 服务器
实时 DNS 解析与安全健康审计
全面检测 A、AAAA、MX、TXT 记录，深度审计 SSL 证书与 SPF/DMARC 邮件安全
批量域名查询与过期雷达
支持单次批量查询多达 100 个域名、实时雷达监控抢注高价值即将过期删除域名