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The complete network, DNS, email & domain diagnostic platform for engineers who care about uptime and deliverability.

DNS

  • DNS Lookup
  • A Lookup
  • AAAA Lookup
  • MX Lookup

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  • DMARC Generator

Network

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  • ASN Lookup
  • Ping
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SSL / TLS

  • SSL Checker
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  • WHOIS Lookup
  • Domain Age
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  • Robots.txt Checker

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ToolsDNSDNS Lookup
DNS

DNS Lookup

Resolve A, AAAA, MX, TXT, NS, CNAME, SOA and more in a single view, straight from authoritative resolvers.

Enter a value above and run the check to see results here.

How it works

Resolve A, AAAA, MX, TXT, NS, CNAME, SOA and more in a single view, straight from authoritative resolvers.

Related tools

A LookupAAAA LookupMX LookupNS Lookup

Frequently asked questions

Is the DNS Lookup tool free to use?+

Yes. The DNS Lookup runs directly in NetInsight with no signup required. Usage is rate limited per IP address to keep the service fast for everyone.

Are my queries logged?+

Diagnostic inputs are processed to produce your result and are not sold or shared. See our Privacy Policy for full detail on retention.

How accurate are the DNS Lookup results?+

Results are fetched live from authoritative sources each time you run a check, so they reflect the current state rather than a cached snapshot.

More DNS tools

DNS

A Lookup

Resolve IPv4 (A) records for a hostname.

DNS

AAAA Lookup

Resolve IPv6 (AAAA) records for a hostname.

DNS

MX Lookup

List mail exchangers and their priorities.

DNS

NS Lookup

List the authoritative name servers.