Cyber Metadata · Domain WHOIS Lookup
Registration record, domain age and newly-registered-domain (NRD) risk tier — from a self-built, registrant-PII-free WHOIS index.
Cyber Metadata · Domain WHOIS Lookup
Registration record, domain age and newly-registered-domain (NRD) risk tier — from a self-built, registrant-PII-free WHOIS index.
域名 WHOIS / 年龄 / 新注册域名（NRD）查询——注册商、创建与到期时间、NS、DNSSEC、域名年龄与信誉分类， 基于自建、已去除注册人隐私的 WHOIS 索引。
一个域名「几岁」是风控里性价比最高的信号之一：绝大多数钓鱼与恶意域名的存活期只有几天到几周， 而正经业务域名往往以年计。本工具把年龄直接换算成 NRD 分层（新注册域名）， 高风险档会以颜色高亮——这与本站抓包分析对可疑流量做域名年龄标注用的是同一套数据。
自建 WHOIS/RDAP 索引与域名信誉库。注册人姓名、邮箱、电话等 PII 在数据集构建阶段就已剥离——不是「查得到但不显示」，而是索引里根本没有。
这是对自建语料库的点查（覆盖 Top 域名与本站观测到的域名，持续扩充），不做实时 WHOIS 转发查询——所以长尾新域名可能不在索引内，会明确提示而不是装作出错。
钓鱼、恶意软件分发和垃圾邮件大量使用刚注册的域名——很多风控和邮件网关直接把「注册不满 30/90 天」当强风险信号。看到 NRD 徽标时，对该域名的邮件和链接应额外警惕。抓包分析里的域名年龄标注用的是同一套索引，见浏览器抓包分析。
Domain WHOIS / age / newly-registered-domain (NRD) lookup — registrar, creation and expiry dates, NS, DNSSEC, domain age and reputation category, backed by a self-built, registrant-PII-free WHOIS index.
How old a domain is ranks among the highest-value risk signals: most phishing and malware domains live for days to weeks, while legitimate businesses age in years. This tool converts age straight into an NRD tier and highlights the risky bands — the same index that annotates domain age on suspicious flows in the PCAP analyzer.
A self-built WHOIS/RDAP index plus a domain-reputation corpus. Registrant names, emails and phone numbers were stripped at dataset-build time — the PII simply does not exist in the index, rather than being hidden at display time.
This is a point lookup against our corpus (top domains plus domains observed by this site, continuously growing) — no live WHOIS relay. Long-tail domains may be outside the index; the tool says so explicitly instead of faking an error.
Phishing, malware distribution and spam lean heavily on freshly registered domains — many risk engines and mail gateways treat "registered under 30/90 days" as a strong risk signal. The domain-age context in the in-browser PCAP analysis uses this same index.