DFY GTM Systems

Free DNS Checker Look Up A, MX, TXT, NS Records

Enter a domain to pull its live DNS records: A and AAAA (where it points), MX (where mail goes), TXT (SPF, DKIM keys, verifications), and NS (who hosts the DNS). Results come from a public resolver in real time.

How this check works

  1. 01

    The domain is queried over DNS-over-HTTPS for A, AAAA, MX, TXT, and NS records.

  2. 02

    Each record set is displayed with TTL so you can judge propagation timing.

  3. 03

    TXT records are surfaced raw so you can spot SPF, DKIM, and verification strings.

How to fix common problems

Record not showing after a change

Check the TTL on the old record until it expires, resolvers serve cached data. Lower TTLs before planned changes.

Conflicting TXT records

Multiple SPF records (v=spf1 appearing twice) invalidate SPF entirely. Merge them into one record.

Example

Querying a domain shows MX pointing to Google Workspace, one SPF TXT record, and NS at Cloudflare the standard healthy setup.

FAQ

What is a DNS record?
A DNS record is an entry in the Domain Name System that maps a domain to data an IP address (A), a mail server (MX), or text policies (TXT, used by SPF/DKIM/DMARC).
How long does DNS propagation take?
Up to the record's TTL typically 5 minutes to 24 hours. Most changes on modern DNS hosts are visible within minutes.
Which records matter for email?
MX (routing), plus TXT records holding SPF, DKIM public keys (at selector._domainkey), and DMARC (at _dmarc).

Want this handled end-to-end?

We build and run the whole outbound system infrastructure, lists, and copy live in 10 days.

See the cold email system