Unverified50% confidenceFactTime unknown
There are 13 sets of root name servers globally in the DNS infrastructure
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026
Sources
Related Claims
UnverifiedDNS全球解析基础设施由13组根服务器组成，实际通过Anycast技术部署了超过1500个物理节点80% similarUnverified全球根域名服务器仅13组，由Verisign、ICANN、美国国防部等机构分别运营，通过Anycast技术在全球数百个物理节点提供服务71% similarUnverifiedPi-hole和AdGuard Home通过在本地网络部署自定义DNS服务器，将广告域名DNS查询解析为无效地址（0.0.0.0）从而在网络层拦截广告64% similarUnverifiedPi-hole结合Unbound作为递归解析器可绕过上游ISP的DNS服务器，直接向根域名服务器查询61% similarUnverifiedBind（Berkeley Internet Name Domain）是互联网上使用最广泛的DNS服务器软件，由ISC（Internet Systems Consortium）维护61% similar
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