Email & DNS
DNS Lookup
Look up public A, AAAA, CNAME, NS, TXT and MX records.
When to use this dns lookup
Look up DNS records when connecting a domain, changing hosting or investigating missing services. A, AAAA, CNAME, NS, TXT and MX answers reveal different parts of the configuration.
What to look for
- Compare A and AAAA answers with the addresses supplied by your hosting provider.
- Check NS records to identify the DNS provider responsible for authoritative configuration.
- Use a dedicated MX, SPF or DMARC check when the issue is specific to email.
How to read the results
DNS answers are a snapshot from our resolver. Empty results can mean the hostname or record type does not exist.
PASS marks a stated check that passed. WARNING deserves review. FAIL marks a failed check. INFORMATION reports a fact. Results are a snapshot from our server, not a score or certification.
Is this a worldwide DNS propagation checker?
No. These answers are a snapshot from our resolver. Cached records and resolver locations can differ. Compare authoritative answers and other resolvers when investigating a recent change.
Download your results as Markdown to save the observations or discuss them with your AI assistant. Reports include the check timestamp and limitations.
DKIM selector not found: use the selector from a real message →
SPF lookup limit: why readable syntax can still fail →
DMARC record not found: check the hostname before changing DNS →
Multiple SPF records: how to diagnose and fix the configuration →