DNS Lookup Tool
Resolve domain names to IP addresses and fetch DNS records (A, AAAA, MX, TXT, CNAME, etc.). Perfect for network diagnostics, domain analysis, and troubleshooting DNS issues.
Popular Domains
DNS Record Types Guide
Creates alias pointing to another domain
Specifies authoritative name servers
Start of Authority record with zone info
Reverse DNS lookup (IP to domain)
DNS Best Practices
✓ Recommendations
- • Use multiple DNS providers for redundancy
- • Set appropriate TTL values (300-3600 seconds)
- • Monitor DNS response times regularly
- • Implement SPF, DKIM, and DMARC records
- • Use CDN with DNS load balancing
- • Keep DNS records up to date
- • Use meaningful subdomain names
- • Implement DNS security measures
✗ Common Issues
- • Long DNS propagation delays
- • Single point of failure
- • Incorrect MX record priorities
- • Missing A/AAAA records
- • Wildcard DNS misconfigurations
- • Outdated or orphaned records
- • DNS cache poisoning vulnerabilities
- • Lack of monitoring and alerting
DNS Troubleshooting Tips
DNS Resolution Issues
Check if domain resolves to correct IP addresses. Look for missing A or AAAA records, verify TTL settings, and ensure DNS servers are responding properly.
Email Delivery Problems
Verify MX records are properly configured with correct priorities. Check for SPF, DKIM, and DMARC records to prevent email delivery issues.
Website Loading Issues
Ensure A records point to correct server IPs. Check CNAME records for subdomains, verify CDN configuration, and monitor DNS response times.
Propagation Delays
DNS changes can take 24-48 hours to propagate globally. Use lower TTL values before making changes, and test from multiple locations and DNS providers.
About DNS Lookup Tool
A comprehensive DNS lookup tool that resolves domain names to IP addresses and retrieves detailed DNS records including A, AAAA, MX, TXT, CNAME, NS, and PTR records. This tool provides essential network diagnostic capabilities for troubleshooting connectivity issues, analyzing domain configurations, and verifying DNS propagation.
Why use a DNS Lookup Tool?
DNS issues are common causes of website downtime, email delivery problems, and network connectivity failures. This tool simplifies DNS troubleshooting by providing instant access to all DNS record types, helping network administrators and developers quickly identify and resolve domain resolution problems without complex command-line tools.
Who is it for?
Essential for network administrators diagnosing connectivity issues, web developers debugging domain problems, system administrators managing DNS configurations, and IT professionals troubleshooting email delivery. Perfect for anyone who needs to analyze DNS records or verify domain name resolution.
How to use the tool
- Enter a domain name or IP address in the input field
- Select the specific DNS record type you want to query (or choose 'All')
- Click lookup to retrieve DNS information and record details
- Analyze the returned DNS records for troubleshooting or verification
- Use the results to diagnose network issues or confirm DNS configuration changes
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