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

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ToolsDNSA Lookup
DNS

A Lookup

Fetch the IPv4 addresses a hostname points to.

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

How it works

Fetch the IPv4 addresses a hostname points to.

Related tools

DNS LookupAAAA LookupMX LookupNS Lookup

Frequently asked questions

Is the A Lookup tool free to use?+

Yes. The A 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 A 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

DNS Lookup

Query any DNS record type for a domain.

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.