DNS Lookup

Look up DNS records (A, AAAA, MX, TXT, CNAME) for any domain.

Record Type Reference
A Maps domain to IPv4 address
AAAA Maps domain to IPv6 address
MX Mail server for the domain
TXT Text records (SPF, DKIM, verification)
CNAME Alias pointing to another domain
NS Authoritative nameservers

Frequently Asked Questions

What are DNS records and what do they do?

DNS (Domain Name System) records map domain names to IP addresses and other data. Key record types: A (maps domain to IPv4), AAAA (IPv6), MX (mail server routing), TXT (SPF, DKIM, domain verification), CNAME (alias/redirect), NS (authoritative nameservers), SOA (zone authority info).

How long do DNS changes take to propagate?

DNS propagation depends on the TTL (Time To Live) value set on each record. Changes typically propagate within 1–4 hours on modern DNS infrastructure, but can take up to 48 hours in edge cases due to heavily cached records. Lower TTL values (e.g. 300 seconds = 5 minutes) speed up propagation — change TTL before making critical DNS updates.

How do I check if my SPF or DKIM record is set correctly?

Look up the TXT records for your domain. Your SPF record should appear as a TXT record starting with "v=spf1". DKIM records are TXT records under a subdomain like "google._domainkey.yourdomain.com". If you're having email delivery issues, verify these records match what your email provider requires.

What is an MX record and why does it matter?

MX (Mail Exchange) records tell the internet which mail server to deliver email to for your domain. Without correct MX records, you won't receive email. MX records have a priority number — lower numbers have higher priority. Most email providers (Google Workspace, Microsoft 365, Proton) provide specific MX records to configure.