Compare
DomainPreflight vs intoDNS
intoDNS checks DNS health and configuration. DomainPreflight focuses on email deliverability — adding DMARC alignment detection, IP reputation, blocklist checks, and copy-paste fixes that intoDNS doesn't have.
Key differences
- intoDNS: broader DNS health (NS, SOA, glue, recursion)
- DomainPreflight: email-focused stack — alignment, DMARC, lists, fixes
Overlap
Both can surface MX and SPF basics. DomainPreflight adds alignment scoring, DMARC XML, blocklists, typosquat, dangling records, and fix output.
Where intoDNS wins
- Classic DNS sanity checklist in one page
- Familiar to ops teams for non-mail DNS review
Where DomainPreflight wins
- Alignment engine with provider gaps
- Email + IP reputation tooling in one place
- Copy-paste DNS rows, not just pass/fail
Run DNS Preflight for mail — use Propagation for resolver agreement
FAQ
What's the difference between intoDNS and DomainPreflight?
intoDNS is general DNS health. DomainPreflight is built around email authentication, alignment, reputation, and actionable fixes.
Do both check MX and SPF?
Yes — there's overlap on basics. DomainPreflight goes deeper on DMARC alignment, DKIM, IP lists, and deliverability context.
Does DomainPreflight give copy-paste DNS fixes?
Yes — where the tool can infer provider-specific records, you get copy-paste guidance. intoDNS is mostly diagnostic labels.
Are both free?
Both are free to use in the browser for typical checks. DomainPreflight requires no account.
Which should I run first for email issues?
DomainPreflight — you'll get alignment and blocklist signal in one pass. Use intoDNS when you want a broad DNS checklist outside mail.