--- title: "DNS Lookup" description: "DNS lookup tool — find A, AAAA, MX, CNAME, NS, TXT, and SOA records for any domain. Queries Google Public DNS over HTTPS. No signup required." url: https://findutils.com/network/dns-lookup/ category: network --- # DNS Lookup DNS lookup tool — find A, AAAA, MX, CNAME, NS, TXT, and SOA records for any domain. Queries Google Public DNS over HTTPS. No signup required. **Use this tool:** [DNS Lookup](https://findutils.com/network/dns-lookup/) ## Programmatic access - REST id `dns-lookup`: POST https://api.findutils.com/api/tools/dns-lookup/execute (reference: https://findutils.com/api/dns-lookup/) - MCP tool `dns_lookup` on https://mcp.findutils.com (reference: https://findutils.com/mcp/dns-lookup/) ## Why Use DNS Lookup? DNS records control how your domain resolves to servers, handles email delivery, and verifies ownership. Misconfigurations in A MX, or TXT records can take your website offline, block incoming email, or prevent domain verification for services like Google Workspace or Microsoft 365. A reliable DNS lookup tool lets you inspect records in seconds and catch problems before they affect your users. Whether you are migrating a domain to a new host, troubleshooting email delivery failures, or verifying SPF and DKIM records for email authentication, DNS Lookup gives you the raw data you need without installing command-line tools. Every query runs through Google's DNS-over-HTTPS API directly from your browser, so results reflect the global public DNS view rather than your local resolver cache. ## Tips for Effective DNS Lookups - Always check both A and AAAA records to ensure your domain resolves correctly for IPv4 and IPv6 clients. - After changing DNS records at your registrar, wait a few minutes and then use this tool to verify the changes have propagated to Google's public DNS. - When troubleshooting email, check MX, TXT (for SPF), and CNAME (for DKIM) records together -- all three must be correct for reliable email delivery. - Lower your TTL values to 300 seconds (5 minutes) before making DNS changes so updates propagate faster. Raise them back afterward to reduce query load. - Use the quick examples feature to test common domains and familiarize yourself with typical DNS record structures before inspecting your own domain. ## Frequently Asked Questions ### What is a DNS lookup? A DNS lookup queries the Domain Name System to find the records associated with a domain name. These records map domain names to IP addresses (A/AAAA), mail servers (MX), name servers (NS), and other configuration data (TXT, CNAME, SOA). ### What DNS record types can I look up? This tool supports A, AAAA, MX, CNAME, NS, TXT, and SOA record types. A records map to IPv4 addresses, AAAA to IPv6, MX to mail servers, CNAME to domain aliases, NS to authoritative name servers, TXT for verification and policy data, and SOA for zone authority information. ### How do I check MX records for email troubleshooting? Enter your domain and select the MX record type. The results show the mail servers responsible for receiving email for your domain, along with their priority values. Lower priority numbers indicate preferred servers. Missing or incorrect MX records are the most common cause of email delivery failures. ### Does this DNS lookup tool require a signup? No. FindUtils DNS Lookup works with no signup, no rate limits. You can query unlimited domains and record types without any restrictions. ### Why do my DNS records look different from what my registrar shows? This tool queries Google's public DNS servers, which reflect the globally propagated state of your records. Your registrar shows what is configured, but propagation can take up to 48 hours. If you recently changed records, the global view may lag behind your registrar's panel. ### What is a TXT record used for? TXT records store text-based data for various purposes: SPF records for email authentication, DKIM signatures for email signing, domain verification tokens for services like Google Workspace, and DMARC policies for email security. Use the TXT record lookup to verify these are configured correctly. ### Can I check DNS propagation with this tool? This tool queries Google's public DNS, which gives you the globally propagated view. If your recently changed records show the new values here, propagation is complete for most users worldwide. For region-specific propagation checks, pair this with multiple DNS resolver tests. ### What does TTL mean in DNS results? TTL (Time to Live) is measured in seconds and tells DNS resolvers how long to cache a record before re-querying. A TTL of 3600 means the record is cached for one hour. Lower TTL values mean faster propagation of changes but more DNS queries to your authoritative servers. ### How is this different from the nslookup command? This tool provides the same core functionality as the nslookup or dig command-line utilities but runs in your browser and sends the domain name to Google Public DNS over HTTPS. No terminal access or installation is needed. Results are formatted in a clean table for easy reading, and you can quickly switch between record types with one click. ### Is my DNS query data private? Yes. Queries are sent directly from your browser to Google's DNS-over-HTTPS API. FindUtils does not log, store, or track your domain lookups. No data passes through our servers. ## Related Tools - [IP Address Lookup](https://findutils.com/network/ip-address-lookup/) - [DNS Security Scanner](https://findutils.com/network/dns-security-scanner/) - [SSL Certificate Checker](https://findutils.com/network/ssl-certificate-checker/) - [Email Validator](https://findutils.com/security/email-validator/) - [Security Headers Analyzer](https://findutils.com/network/security-headers-analyzer/) - [Email Security Checker](https://findutils.com/security/email-security-checker/) - [URL Safety Checker](https://findutils.com/security/url-safety-checker/) - [Internet Speed Test](https://findutils.com/network/internet-speed-test/)