DNS and domains
Online DNS Lookup
Query the main DNS records for a domain quickly and clearly.
DNS guide
What is a DNS Lookup?
A DNS Lookup queries the DNS records associated with a domain and shows its configuration from the server’s resolver.
DNS record types
A and AAAA point to IPv4 and IPv6; CNAME creates aliases; MX identifies mail servers; NS delegates a zone; TXT publishes information; SOA describes authority and CAA restricts certificate authorities.
What is it useful for?
It helps diagnose domains, verify settings, check mail servers, confirm changes and analyze subdomains.
DNS Lookup and propagation
A DNS Lookup queries the current resolver. A propagation checker compares results from multiple resolvers and locations.
Frequently asked questions
DNS Lookup questions
What is a DNS Lookup?
It is a query of the DNS records published for a domain.
How do I check a domain’s DNS?
Enter a domain or URL, choose a record type or all records and select Look up DNS.
What is the difference between A and AAAA?
A contains an IPv4 address and AAAA contains an IPv6 address.
What is an MX record?
It identifies the servers receiving the domain’s email and their priority.
What is a TXT record?
It publishes technical text used for SPF, verification and policies.
What does TTL mean?
It is how long a record may remain cached, normally expressed in seconds.
What is a CNAME?
It is an alias that points one domain name to another canonical name.
Why might a DNS record not appear yet?
Resolvers and caches may retain previous values until the TTL expires.