Free tools · DNS

DNS & domain

DNS-side controls: full DNS health (DNSSEC, CAA, NS, MX, blocklists, registrar expiry), standalone DNSSEC + CAA verifiers, reverse-DNS bulk lookup, vendor inventory + consolidation, and a visual infrastructure map. Audits the entire DNS surface in one place.

DNS health

DNSSEC, CAA, registration, mail blocklists

DNSSEC validator

Secure / Insecure / Bogus, with DS + DNSKEY inspection

CAA checker

Which CAs can issue certs for your domain

CAA record generator

Generator

Pick CAs from a preset list, get BIND records

Reverse DNS bulk lookup

PTR records for up to 50 IPs at once

Vendor scoring

Batch grade your suppliers

Vendor consolidation audit

Per-vendor blast radius for one domain

Vendor de-authorization guides

Step-by-step DNS edits to remove SendGrid, Mailgun, Mailchimp, HubSpot, and more

Infrastructure map

Visual graph of NS / MX / SPF / DKIM dependencies

Other categories

Web posture

Is your website secure? (TLS, headers, subdomains)

Email authentication

Will your email reach the inbox? (DMARC, SPF, DKIM)

Threat intel

Investigate something suspicious (reputation, threat feeds)

Compliance & audit

Evidence for the audit (workpapers, crosswalks, scorecards)