AI-powered DNS &
Email Security Scanner
Scan DNS, email authentication, blacklists, and debug real emails with AI-powered fixes — available via API.
Everything you need for DNS security
Comprehensive analysis tools to ensure your domain is secure and properly configured
DNS Analysis
In-depth analysis of DNS configuration and optimization suggestions
- A, AAAA, MX, TXT records
- DNS propagation monitoring
- TTL optimization
Email Security
SPF, DKIM, and DMARC configuration analysis
- SPF record validation
- DKIM signature check
- DMARC policy analysis
Security Scan
Comprehensive security scan via Internet.nl
- TLS/SSL certificates
- Security headers
- DNSSEC validation
Deliverability Scoring
We analyze your actual message: spam flags, DKIM alignment, misleading headers and more — just like mail-tester, but smarter.
The first DNS tool that actually tells you why your email ended up in spam.
Blacklist Check
Check 100+ DNS blacklists instantly. Know if your IP or domain is flagged.
AI-Powered Fixes
Get exact copy-paste fixes for every issue. No more guessing.
API Access
Integrate deliverability checks into your CI/CD or monitoring stack.
DNS + Message Debug
The only tool that combines DNS analysis with actual message inspection.
What we analyze in your message
Be the first to know when we launch
Check Your Sender Setup NowMore Tools
Everything you need for DNS and email security
Built for modern security needs
We combine AI-powered analysis with comprehensive security checks
AI-Powered Explanations
Get clear explanations and fix recommendations powered by Claude AI
Letter Grade Scoring
Easy-to-understand A+ to F grades for your security posture
Modern & Fast
Clean interface with parallel checks for instant results
Completely Free
No signup required. Unlimited scans for basic use.
Start Improving Your Security Today
Scan your domain now and get actionable recommendations to protect your email and DNS infrastructure