DNS Lookup
Look up the public DNS records of a domain to confirm where it points and spot misconfigured records.
What DNS records tell you
The Domain Name System translates names like example.com into the addresses computers use to connect. If the records are wrong or missing, visitors can't reach your website even when the server itself is running perfectly.
- A and AAAA records point the domain to IPv4 and IPv6 addresses.
- CNAME records make one name an alias of another.
- MX records list the mail servers that accept email for the domain.
- NS records name the authoritative DNS servers for the domain.
- TXT records hold text such as SPF policies and domain verification codes.
Why results can differ
DNS answers are cached for the time-to-live (TTL) set on each record. After a change, some resolvers keep serving the old answer until the TTL expires. If our results differ from yours, wait for the TTL to pass or compare with another resolver.
Learn more in How DNS Problems Can Make Your Website Unavailable.
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