MX Records
Where your mail actually goes. Two or more servers means a backup exists; one means a single point of failure; none means the domain cannot receive email at all.
DNS Check / No Signup Is Your Email
Is Your Email
Set Up Right?
A live DNS look at your domain: MX records, your mail provider, SPF, DKIM and DMARC. Runs entirely in your browser. No email asked, nothing stored.
Check The Domain Ten Seconds.
Ten Seconds.
Straight From DNS.
Type the domain, get the records. Real lookups against live DNS, right from this page.
Querying DNS for MX records...
Asking the internet's phone book about your mail.
Go deeper, one record at a time
DNS shows the plumbing. The full diagnostic grades the whole machine.
SPF and DKIM
The signatures that prove a message really came from you. Missing or sloppy records are the quiet reason legitimate email lands in spam.
DMARC
The policy that tells the world what to do with mail that fails those checks, and the record inbox providers increasingly expect before they trust a sender.
Records healthy but campaigns still underperforming? The plumbing is only a third of the story. The Email Marketing Diagnostic grades deliverability, conversion and AI visibility together.
