DNS Lookup
Look up A, AAAA, CNAME, MX, NS, TXT, SOA and CAA records, plus SPF and DMARC.
About the DNS Lookup
DNS (Domain Name System) translates your domain into the addresses of the servers behind it: A/AAAA records point to your web server, CNAME records alias one name to another, MX records route email, NS records name your DNS provider and TXT records hold verification codes and email authentication policies.
This lookup queries every common record type and checks the basics: redundant name servers, IPv6 support and the email authentication records – SPF and DMARC – that keep your domain from being spoofed and your email out of spam folders. Results reflect public DNS at the moment of the lookup; changes can take time to spread because of caching (TTL).
Frequently asked questions
How long does DNS propagation take?
It depends on the TTL of the old record – often minutes to a few hours, occasionally up to 48 hours for name server changes.
What is the difference between A and CNAME?
An A record points a name directly to an IP address. A CNAME points a name to another name, which then resolves to an IP. The root domain normally cannot be a CNAME.
Why do SPF and DMARC matter?
They prove which servers may send email for your domain. Without them, scammers can spoof your address and legitimate email is more likely to land in spam.