Read-only DNSA · AAAA · MX · NS · TXT · CNAME
DNS Lookup
Query public DNS records for any domain to inspect hosts, mail routing and security configuration (SPF / DMARC in TXT). This is a read-only lookup — no scanning, no modification.
What this checks
- A / AAAA (hosts), MX (mail routing), NS (nameservers), TXT (including SPF/DMARC) and CNAME.
- Highlights missing SPF or DMARC records as mail-security findings.
- Results are informational — verify before relying on them for security decisions.
Related Knowledge
- Analyze DNS Records — read MX, SPF, DMARC and more.
- Phishing Email Investigation Playbook — validate the domains in a suspicious message.
- Phishing Defense Checklist — DNS checks within full email triage.
- How to Analyze Email Headers — correlate DNS verdicts with header evidence.
- How to Analyze IOCs — check resolved IPs and related domains.