Our free DNS lookup tool lets you instantly check DNS records for any domain. Run a DNS checker and view A records, AAAA records, MX records, CNAME, TXT, NS, SOA, and other DNS record types in seconds. Whether you’re troubleshooting email deliverability issues, verifying domain configuration, or checking DNS propagation after making changes, this DNS records lookup provides the detailed information you need. No registration required.
DNS Records Search
Enter a domain to retrieve detailed DNS information
DNS Records
Comprehensive DNS record information including A, AAAA, MX, NS, and more
Domain Security
Check DNS security settings and identify potential vulnerabilities
Domain Information
Detailed domain registration and ownership information
How to check DNS records
- Enter the domain name (for example: example.com).
- Click Lookup DNS.
- Review A/AAAA, MX, TXT, NS, and other record types.
- Use the output to confirm configuration or diagnose issues.
Common use cases
- Troubleshooting email delivery: Check MX and TXT records (SPF/DKIM/ DMARC).
- Verifying domain setup: Ensure A/AAAA records point to the correct server IP.
- Checking DNS propagation: Use our DNS Propagation Checker.
- Security audits: Review TXT and CAA records for authentication and certificate policy.
- Nameserver verification: Confirm NS records match your DNS provider.
Example lookups
Try running a DNS lookup for these domains:
- google.com
- github.com
- cloudflare.com
Common Questions About DNS Records
What are DNS records and why are they important?
DNS records are like the internet’s address book. They tell computers where to find websites and services by mapping a domain name (like example.com) to IP addresses and other destinations.
What types of DNS records can I look up?
You can view common record types like A, AAAA, MX, CNAME, TXT, NS, and SOA—plus SRV, CAA, and more. Each record type serves a different purpose (web hosting, email routing, verification, and security).
How do I use the DNS lookup tool?
Enter a domain name and click “Lookup DNS”. The tool will instantly fetch and display the DNS records for that domain so you can troubleshoot or validate configuration.
What’s the difference between A and AAAA records?
A records map a domain to an IPv4 address (like 192.0.2.10). AAAA records map a domain to an IPv6 address (like 2001:db8::10). Both point traffic to servers, just using different IP versions.
Why would I need to check DNS records?
Common reasons include troubleshooting email delivery (MX), verifying your website points to the correct server (A/AAAA), checking nameservers (NS), and auditing TXT records for SPF/DKIM/DMARC. You can also use our DNS Propagation Checker: https://networkwhois.com/dns-propagation.
How long does DNS propagation take?
DNS propagation usually takes up to 24–48 hours worldwide, but many changes appear within minutes to a few hours. The exact time depends on TTL (cache time) and how often resolvers refresh their cache.
What is TTL in DNS records?
TTL (Time To Live) tells DNS resolvers how long to cache a record before checking for updates. Lower TTL values can make changes propagate faster, while higher TTL values reduce DNS query load.
How do I fix DNS errors?
Start by verifying your nameservers with your registrar, then confirm A/AAAA records point to the correct IP, and MX/TXT records are configured properly. After changes, wait for propagation and re-check with a DNS lookup tool.
Related DNS tools
- DNS Propagation Checker — track if DNS changes have propagated globally
- DNS Zone Generator — create DNS zone files
- Reverse DNS Lookup — find hostnames for IP addresses
- Email Validator — validate email domains and configuration