DNS Lookup Online - A / MX / CNAME / NS / TXT Domain Records
Query A (IPv4) / AAAA (IPv6) / CNAME / MX / NS / TXT DNS records for a domain
About DNS
DNS (the Domain Name System) resolves domain names to IP addresses and is a foundational internet service. Common record types: A (IPv4 address), AAAA (IPv6 address), CNAME (alias), MX (mail server), NS (name server) and TXT (text records such as SPF/DKIM verification). Enter a domain to query all publicly available DNS records; you can then use the IP Location tool for geolocation or the SSL Certificate Check tool to troubleshoot HTTPS configuration.
How to Use the DNS Lookup Results
Check the A record to confirm the domain resolves to the intended server IP; check the MX record to troubleshoot mail delivery; check the CNAME record to verify CDN or alias configuration; check the TXT record to confirm SPF/DKIM email verification is in effect. If some records are missing, the domain has not configured the corresponding service.
FAQ
What are the common DNS record types?
An A record resolves a domain to an IPv4 address; AAAA resolves to an IPv6 address; CNAME points an alias to another domain; MX specifies mail server priority; NS specifies the authoritative DNS servers; TXT stores text verification such as SPF/DKIM. This tool supports all of these record types.
How long does a DNS change take to propagate?
DNS resolution is governed by TTL (Time To Live), typically 600-3600 seconds (10 minutes to 1 hour). After changing a DNS record, you must wait for the old record’s TTL to expire before DNS servers worldwide update to the new result.
What is the difference between a DNS lookup and a WHOIS lookup?
A DNS lookup retrieves a domain’s resolution records (such as the A record IP or MX mail server); a WHOIS lookup retrieves registration information (such as registrar and expiry date). They serve different purposes and are both commonly used to troubleshoot domain issues.
Why can’t I find some record types?
Not every domain configures all DNS record types. Usually only A/NS records are guaranteed to exist, while MX/TXT/CNAME depend on actual business needs. Also, subdomain records are not visible under the parent domain.