DNS / MX / SPF / DMARC Inspector
Resolve DNS records and email-authentication posture for a domain.
- slug
- dns-inspector
- visibility
- Public
- risk
- safe
- level
- 0
What this tool does.
Performs live DNS lookups for A, AAAA, MX, NS, TXT and CAA records on a given domain, then flags SPF and DMARC presence.
Intended as a compact, readable replacement for chaining dig commands.
Run this tool.
Submit an input and see the runner output here. Execution is server-side and governed by the policy shown in the sidebar.
Everything runs server-side. Inputs and outputs are subject to the tool's policy shown in the sidebar.
Dev-docs · 2 documents.
Related articles.
SPF, DKIM and DMARC: What They Reveal and What They Don't
A practical guide to reading SPF, DKIM and DMARC as public evidence: what each mechanism authenticates, how alignment works, what DNS records reveal, and what they cannot prove.
Getting Started with Public Surface Analysis
A practical, passive-first workflow for reading DNS, HTTP, robots, metadata, technology and historical signals without overclaiming.
A Responsible Method for Reconnaissance on Public Web Surfaces
A practical framework for deciding what to collect, when public research becomes active testing, how to define authorization and scope, and when to stop.
How to Turn Weak Signals into Better Questions
A practical OSINT reasoning framework for turning ambiguous observations into testable hypotheses, seeking disconfirming evidence and expressing conclusions with calibrated confidence.