Pro move: type dmarc:yourdomain.com or blacklist:1.2.3.4 straight into the box — it switches tools for you.
About this tool. A quick health pass over the fundamentals of your DNS zone: enough nameservers, a valid SOA, no CNAME at the apex, and the records a working website and mailbox depend on. Green means the plumbing is sound.
How to read your dns checker results
This runs a quick health pass across the whole zone: nameservers, MX, SOA and common misconfigurations, summarized in plain English.
Green means healthy. Warnings point to things worth fixing even if mail still flows today.
Common problems and how to fix them
A warning about missing email authentication
Add SPF, DKIM and DMARC. Use the dedicated checkers here for the exact records to publish.
Nameserver mismatch
Align the nameservers at your registrar with the ones actually serving the zone.
Common questions.What does a DNS health check look at?
Nameserver consistency, mail routing (MX), zone authority (SOA), and common issues that quietly cause problems.
Is a passing DNS check enough for email?
It is the foundation, but inbox placement also depends on SPF, DKIM, DMARC and your sending reputation.