DNS check
See the records public DNS publishes for a domain: nameservers, addresses, mail, and authentication.
A DNS check reads the live records for a name. Nameservers say who hosts the zone. A and AAAA say where the site points. MX says where mail is delivered. SPF, DMARC, and DKIM say which servers may send mail for the name.
Use it before you move hosting or email. If the nameservers are not yours, changing records in the wrong panel does nothing. If MX is empty, mail to the domain has nowhere to go.
DNS check FAQ
What does this DNS check show?
Nameservers, IPv4 and IPv6, the www record, MX, SPF, DMARC, other TXT records, and DKIM on common selectors.
Why is a record missing?
It is not published, or it was added too recently and has not reached public DNS yet. Wait for the TTL and check again.
Does www.example.com check the same name?
A leading www is removed. The lookup is for the domain itself, plus a separate www row.