Free tool

Can this domain send mail?

Live A, MX, SPF, DMARC, NS and CAA records — the checks that quietly decide whether your email reaches an inbox or a spam folder.

Reads live public data. Nothing is stored about the domain you check.

How this works

  • Source: public DNS over HTTPS (Cloudflare's resolver), queried live while you wait — no cached copy, no third-party database.
  • SPF and DMARC are read from the domain's TXT records, including the _dmarc subdomain. Missing records mean receivers cannot verify your mail.
  • MX shows which mail provider actually handles the domain, inferred from the records themselves.
  • DKIM keys normally live on a selector subdomain the public DNS does not advertise, so a blank DKIM row is not proof a domain has none.

If you cold-email from a domain without SPF and DMARC, a large share of it is filtered before anyone reads it — and that is invisible in your sent folder.

Next step: run the free AI-readiness scan. It crawls your real pages and grades how well assistants can read and quote them — three domains free, no card.

Run the free scan
All free toolsDomain age checkerKeyword ideasSERP preview