DNS Tools

All tools

31 free, private tools — everything runs in your browser.

{ } DNS Records

DNS LookupA Record LookupAAAA Record LookupMX Record LookupTXT Record LookupNS Record LookupCNAME LookupSOA Record LookupCAA Record LookupDNS Propagation CheckSRV Record LookupDNSSEC CheckerDomain Health Report

{ } IP & Network

What Is My IP AddressReverse DNS (PTR) LookupDNS Blacklist (DNSBL) CheckDomain Whois (RDAP) LookupASN & IP Routing Lookup

{ } Email & Deliverability

SPF Record CheckerDMARC Record CheckerDKIM Record Checker

{ } SSL & Certificates

SSL Certificate DecoderCSR DecoderPEM to DER ConverterDER to PEM ConverterPFX to PEM ConverterPEM to PFX ConverterP7B to PEM ConverterPEM to P7B ConverterCSR GeneratorTLSA / DANE Lookup