Loading...
Loading...
The Domain Name System (DNS) is the backbone of the internet, translating domain names into IP addresses and routing email to the right servers. Properly configured DNS records are essential for email delivery, website availability, and security. Use our free tools to query any record type, check propagation status, and compare configurations across domains.
Query all DNS records for any domain — A, AAAA, MX, TXT, CNAME, NS, SOA, and more.
Find mail exchange servers and priority values for any domain.
Find authoritative nameservers and check DNS delegation for any domain.
View all TXT DNS records including SPF, DKIM, domain verification, and more.
Look up IPv6 AAAA DNS records and check dual-stack support for any domain.
Trace CNAME alias chains and resolve the canonical hostname for any domain.
Check Start of Authority records with serial, refresh, retry, and expire values.
Compare DNS records of two domains side by side to spot differences.
Check if DNS changes have propagated across global DNS servers.
Look up MX records to verify email routing, check priority values, and confirm your mail server configuration.
Query NS records to verify DNS delegation, check authoritative nameservers, and troubleshoot resolution problems.
Query TXT records for any domain to verify SPF, DKIM, DMARC, domain ownership, and other text-based configurations.
Look up AAAA records to verify IPv6 configuration and troubleshoot dual-stack setups.
Check CNAME records, understand DNS aliases, troubleshoot CNAME chains, and manage subdomain records.
Inspect SOA records to verify DNS zone authority, serial numbers, refresh intervals, and TTL settings.
Compare DNS configurations side by side, detect discrepancies, and ensure consistency across your infrastructure.
Verify if DNSSEC is active on your domain, understand DS and DNSKEY records, and enable DNSSEC with your registrar.
A practical guide to querying DNS records, understanding the results, and troubleshooting common issues.
A complete reference for A, AAAA, MX, CNAME, TXT, NS, SOA, PTR, and other DNS record types.
Understand how DNS propagation works, why changes take time, and how to speed up the process.
Learn how DNSSEC adds cryptographic signatures to DNS records to prevent cache poisoning and man-in-the-middle attacks.
Understand MX record priority, multiple mail servers, fallback delivery, and common MX configurations.
Learn how NS records control DNS delegation, glue records, and nameserver configuration best practices.
Understand CNAME records, alias chains, restrictions, and when to use CNAME vs A records.
Learn what SOA records contain, how serial numbers work, and how refresh/retry/expire values affect DNS.
Understand how TXT records are used for SPF, DKIM, domain verification, and other purposes.
Learn about IPv6 AAAA records, dual-stack configuration, and migrating your domain to support IPv6.
A practical guide to adding IPv6 support to your domain with AAAA records and dual-stack DNS.
Monitor DNS records across multiple domains, detect unauthorized changes, and automate DNS audits.
Learn how to compare DNS records between domains to audit configurations and detect inconsistencies.