Free tool
DNS Health Check
Diagnose nameserver, web, mail, and security records for any domain — registered with us or anywhere else. Lookups run live in your browser, no account needed.
What we check
Ten focused checks, grouped by impact area.
Web records
A, AAAA, www, and CNAME-at-apex detection.
Authoritative checks
Nameservers, SOA values, redundancy.
MX, SPF, DMARC — the records that decide whether your email lands in the inbox.
Security
DNSSEC validation status and CAA certificate-issuance records.
All lookups go through Cloudflare's public DNS-over-HTTPS resolver. The domains you check never touch our servers — Maxinames doesn't log or store them.