Professional DNS lookup and email validation tools. Query records from 30+ servers worldwide, validate email security configurations, and build with our free public API.
From simple record lookups to full email security audits, all in one place.
Query from servers across every continent
SPF, DMARC, DKIM and more
Instant DNS query responses
DNSSEC, HSTS, SSL and CAA
DNSBL and RBL monitoring
No limits, no credit card
Global resolver coverage
Track DNS change rollout
Optimised for low latency
Full deliverability assessment
A, AAAA, MX, NS, TXT and more
Works on every device
Integrate DNS and email validation into your own tools with our REST API.
Fast response times with optimised global endpoints
Detailed docs, examples and response schemas
Production-ready infrastructure with monitoring
No rate limits for normal usage
Query resolvers across all continents
Enterprise-grade infrastructure