Know your mail posture.

A focused DNS audit for inbound email providers, SPF, DKIM, DMARC, and mail-delivery controls.

Private by design
Browser-only checks · 50 MX signatures

SINGLE AUDIT

Inspect a domain

Review public DNS mail controls for one domain at a time.

domain

Try: · public DNS resolution may vary by network

LIVE DNS AUDIT

✦

We examine published DNS records and explain what each signal means.

AUDIT RESULT

Checking public DNS…

Posture—out of 100

How to read this: Results are DNS observations, not proof that every sender is authorized or every receiver will enforce policy.

BATCH AUDIT

Paste up to 500 domains or import a CSV. Results stay in this browser.

Paste a domain or email listDomains are extracted from email addresses · up to 500 unique domains

Choose a CSV, text, or Excel fileEmails and URLs are reduced to unique root domains 0 valid domains

Include DNS host & registrar Web network / IP owner slower

BATCH AUDIT

Preparing scan…

Public DNS checks run in your browser. Keep this tab open.

BATCH INSIGHTS

Provider concentration, authentication posture, and average score.

LOCAL HISTORY

Stored only in this browser. Restore a scan without querying DNS again.

INSIGHT DETAIL