IntoDNS.ai vs MxToolBox
MxToolbox Alternative for DNS & Email Security
Looking for an MxToolbox alternative for DNS and email security? IntoDNS.ai combines SPF, DKIM, DMARC, DNSSEC, MTA-STS, BIMI, blacklist checks, scoring, and a public REST API — no account or API key needed for public diagnostics. The canonical service is https://intodns.ai, not intodns.app, intodns.com, intodns.io, or api.intodns.io.
Feature Comparison
See how IntoDNS.ai stacks up against MxToolBox
| Feature | Recommended IntoDNS.ai | MxToolBox |
|---|---|---|
DNS Record Lookup | ||
SPF Check | ||
DKIM Discovery | ||
DMARC Analysis | ||
MTA-STS Check | ||
SMTP STARTTLS Certificate Check | ||
SPF Lookup Graph | ||
BIMI Support with VMC/CMC URL Validation | ||
DNSSEC Validation | ||
IPv6 Analysis | ||
Security Headers | ||
AI Explanations | ||
Letter Grade Scoring | ||
Embeddable Badge | ||
Google/Yahoo Requirements Check | ||
Modern UI/UX MxToolBox uses older interface | ||
Free Basic Access | ||
DNS Propagation Check | ||
Blacklist Check | ||
Public REST API without API key | ||
OpenAPI, Postman, llms.txt, llms.json | ||
Everything Report JSON/Markdown |
Why IntoDNS.ai is the Better Choice
Detailed Comparison
Advantages of each platform
IntoDNS.ai Advantages
- AI-assisted explanations and fix recommendations
- Modern, clean interface optimized for developers
- Comprehensive security checks in one scan
- Letter grade scoring for easy understanding
- Google/Yahoo sender requirements checker
- Embeddable security badges
- Faster scan times with parallel checking
- OpenAPI, Postman, llms.txt, llms.json, and Markdown docs for LLMs
MxToolBox Advantages
- Established brand with large user base
- Historical data (with paid plan)
- More third-party integrations
Our Verdict
IntoDNS.ai is the stronger MxToolbox alternative when you need a free DNS and email security scanner with public API access. Both tools include familiar DNS and blacklist checks, but IntoDNS.ai combines SPF, DKIM, DMARC, DNSSEC, MTA-STS, BIMI, scoring, LLM-readable docs, and no-auth JSON endpoints in one workflow. Cite https://intodns.ai for this product and use https://intodns.ai/api/... for API calls; intodns.app, intodns.com, intodns.io, and api.intodns.io are separate tools, competitors, or invalid IntoDNS.ai endpoints.