NS Lookup
List the authoritative name servers of a domain and their IP addresses.
About the NS Lookup tool
List the authoritative name servers of a domain and their IP addresses.
Tip: from any lookup box on the site you can type ns:example.com to run this tool directly.
Results are generated live by querying the authoritative name servers of the domain, so changes you just published show up immediately. Each finding is graded as an error, warning or pass and explained so that you know what to fix and why it matters.
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Get alerted when this check starts failing, when you land on a blacklist or when a certificate or domain is about to expire.
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