Scan any domain's deliverability posture
SPF, DKIM, DMARC, and blacklist status, checked live. Read-only. This cannot modify a DNS record. No account required.
Check a domain now
Read-only DNS lookup. No signup, no changes made, results in seconds.
What this scan actually does
- • Looks up the domain's SPF, DKIM (common selectors), DMARC, and MX records over DNS-over-HTTPS.
- • Cross-references the resolved sending IP against 5 public blacklists.
- • Never writes to DNS, never requires a login, never requires connecting an account.
- • Is rate-limited per network per day to keep the service available for everyone.