What is DNS lookup?
A DNS lookup queries the Domain Name System to find records for a domain. These records tell the internet where your website, email, or other services are located.
A record lookup
An A record maps a domain name to an IPv4 address (like 93.184.216.34).
If a site is not loading, checking the A record is often the first step.
AAAA record lookup
An AAAA record maps a domain to an IPv6 address. Itβs the IPv6 version of an A record and is increasingly common.
MX record lookup
MX records define which mail servers receive email for a domain. If email isnβt arriving, MX records (and related SPF/DKIM in TXT) are the usual suspects.
TXT record lookup
TXT records store text data such as SPF, DKIM, and verification tokens. Many services ask you to add a TXT record to prove domain ownership.
NS record lookup
NS records specify the authoritative nameservers for a domain. If NS records point to the wrong provider, other record changes wonβt take effect correctly.
What is SOA?
The SOA record includes administrative information for a DNS zone (like the primary nameserver and timing values). Itβs useful when debugging zone configuration and refresh behaviour.
Why do attackers target DNS infrastructure?
DNS servers translate domain names into IP addresses, making them a critical part of how the internet functions. Because of this, DNS infrastructure is often scanned or targeted during reconnaissance and large-scale cyber attacks. Monitoring DNS records and domain configurations can help detect misconfigurations or suspicious activity.
For a broader view of global cyber threat activity, you can explore the Cyber Attack Map, which visualizes attack patterns and network events around the world.
Need IP to hostname instead?
If you have an IP address and want to see the hostname assigned to it (PTR record), use Reverse DNS Lookup.
How do I find the IP address of a domain?
When you enter a website address in your browser, the domain name must first be translated into an IP address. This process is handled by the Domain Name System (DNS). A DNS lookup shows the IP address and related records for a domain. You can check your own IP at checkmyip.net.