DNS Lookup
Check DNS records for any domain and view important information such as A, AAAA, MX, CNAME, NS, TXT and SOA records.
Enter a domain without http:// or https://
What is a DNS Lookup?
A DNS lookup checks the Domain Name System records associated with a domain name. These records provide information used by computers and internet services to locate websites, mail servers and other services.
A DNS lookup can return several record types, including A, AAAA, MX, CNAME, NS, TXT and SOA records.
How to use the DNS Lookup tool
Using AICores DNS Lookup is simple:
- Enter the domain name you want to check.
- Click the "Lookup DNS" button.
- Review the DNS records returned for the domain.
- Use the record information to understand how the domain's DNS is configured.
Understanding DNS record types
A Record
An A record maps a domain name to an IPv4 address.
AAAA Record
An AAAA record maps a domain name to an IPv6 address.
MX Record
MX records identify the mail servers responsible for receiving email for a domain.
CNAME Record
A CNAME record points one domain name to another canonical domain name.
NS Record
NS records identify the nameservers that are authoritative for a domain.
TXT Record
TXT records can contain text used for verification, email authentication and other purposes.
SOA Record
The SOA record contains administrative information about the authoritative DNS zone.
DNS Lookup FAQ
What is DNS?
DNS, or Domain Name System, translates domain names into information used to locate internet services.
What records can a DNS lookup show?
Depending on the domain, a lookup can return records such as A, AAAA, MX, CNAME, NS, TXT and SOA.
What is an A record?
An A record associates a domain name with an IPv4 address.
What is an MX record?
An MX record specifies the mail servers responsible for receiving email for a domain.
Is DNS Lookup free?
AICores provides its core DNS lookup functionality as a free online utility.