Free tools · Email

Email authentication

The full email-authentication stack: DMARC / SPF / DKIM check + generator, BIMI verifier + logo validator, MTA-STS + TLS-RPT for transport encryption, and a deliverability scorecard that composites the lot. Plus the IPv6 / spoofability checkers that most other tools miss.

DMARC

DMARC + SPF checker

Policy, alignment, recommendations

DMARC wizard

AI-personalized migration plan

DMARC report viewer

Paste RUA XML, get a clean PDF

SPF

SPF record generator

Generator

15+ presets, real-time lookup counter

SPF raw validator

Paste-and-validate syntax + count

SPF flattener

Resolve includes to 0-lookup record

DKIM

DKIM checker

Look up + validate published record

DKIM TXT generator

Generator

Format TXT around your public key

BIMI

BIMI checker

Verify published BIMI + VMC

Transport (MTA-STS / TLS-RPT)

MTA-STS + TLS-RPT checker

Transport encryption policy

MTA-STS generator

Generator

DNS record + policy file

TLS-RPT generator

Generator

TLS reporting record builder

Deliverability

IPv6 deliverability

AAAA + reverse-DNS posture (the gap most checkers miss)

Can my domain be spoofed?

Yes / maybe / no verdict on third-party impersonation

Which big brands can be spoofed?

Live index across 110+ high-profile domains

Other categories

Web posture

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

DNS & domain

Is your DNS set up right? (DNSSEC, CAA, vendor inventory)

Threat intel

Investigate something suspicious (reputation, threat feeds)

Compliance & audit

Evidence for the audit (workpapers, crosswalks, scorecards)