DNS Tools
20 professional DNS tools: DNS Lookup, MX Records, SPF, DKIM, DMARC checkers, DNS propagation monitor, SSL certificate checker, and more.
DNS Lookup
Free DNS lookup tool. Query A, AAAA, MX, TXT, NS, CNAME, and SOA records for any domain. Get instant results with detail...
MX Lookup
Look up MX (Mail Exchange) records for any domain. Find which mail servers handle email for a domain and their priority ...
Reverse DNS
Perform reverse DNS lookup to find the hostname associated with an IP address. Essential for email deliverability and ne...
WHOIS Lookup
Look up domain registration information including registrar, creation date, expiration date, and nameservers using WHOIS...
DNS Propagation
Check DNS propagation across multiple global DNS servers. Monitor how DNS changes spread across the internet in real-tim...
Email Deliverability
Test email authentication by sending a test email. Validates SPF, DKIM, and DMARC configuration for your domain.
SSL Checker
Check SSL/TLS certificate validity, expiration date, issuer, and certificate chain for any website.
SPF Checker
Check and validate SPF (Sender Policy Framework) records for any domain. Verify email authentication configuration.
DNS Validation
Validate all DNS records for a domain, ensuring proper configuration and following best practices.
CNAME Lookup
Look up CNAME (Canonical Name) records to find domain aliases and their targets.
NS Lookup
Look up NS (Name Server) records to find authoritative DNS servers for any domain.
TXT Lookup
Look up all TXT records for a domain including SPF, DKIM, DMARC, and verification records.
CAA Lookup
Look up CAA records to see which Certificate Authorities are authorized to issue SSL certificates for a domain.
TLSA/DANE
Look up TLSA records for DANE (DNS-based Authentication of Named Entities) to verify TLS certificates.
DMARC Validation
Check and validate DMARC (Domain-based Message Authentication) records for email security.
DNS Health Analyzer
Comprehensive DNS health analyzer with 99+ tests across 10 categories. Get an A+ to F grade with detailed recommendation...
DMARC Generator
Generate properly formatted DMARC records for email authentication. Customize policy, reporting, and alignment settings.
DNSKEY Lookup
Look up DNSKEY records for DNSSEC validation. View public keys used for DNS security.
DS Lookup
Look up DS (Delegation Signer) records for DNSSEC chain of trust verification.
DKIM Checker
Check DKIM (DomainKeys Identified Mail) records for email signing verification.