Free tool · runs in your browser
DNS lookup
Query any DNS record type — A, AAAA, MX, TXT, NS, CNAME, CAA, SOA — over DNS-over-HTTPS, with TTLs shown and SPF/DKIM/DMARC highlighted in TXT results. Useful for confirming a record published or debugging a change. Runs entirely in your browser.
DNS lookup FAQ
What record types can I look up?+
A and AAAA (addresses), MX (mail exchangers), TXT (including SPF, DKIM and DMARC), NS (nameservers), CNAME (aliases), CAA (certificate authorities) and SOA (zone authority). The lookup runs in your browser over DNS-over-HTTPS against a public resolver.
Where do SPF, DKIM and DMARC live?+
All three are TXT records. SPF is a TXT on the domain itself (starting v=spf1). DMARC is a TXT at _dmarc.yourdomain. DKIM is a TXT at selector._domainkey.yourdomain. Query TXT on those names to see them — this tool highlights SPF/DKIM/DMARC in TXT results.
Why might a record not appear?+
It may not be published, or DNS may not have propagated yet after a change. A public resolver also caches by TTL, so very recent changes can take time to show. If a record you just added doesn't appear, wait for the TTL to expire and try again.
Is the lookup private?+
The query goes to a public DNS-over-HTTPS resolver to read public DNS data — the same records any server can see. Nothing is stored by autopmta and no personal data is sent.
Related: MX checker · reverse DNS checker