Bulk DNS Lookup
Check DNS records (A, MX, TXT, NS) for multiple domains at once. Verify DNS configuration, mail servers, SPF records, and nameservers.
Our free bulk DNS lookup tool allows you to check multiple DNS record types for multiple domains simultaneously. Verify A records (IP addresses), MX records (mail servers), TXT records (SPF, DKIM), and NS records (nameservers). Perfect for DNS configuration verification, email setup, and domain management.
Features
Multiple Record Types
Check A, MX, TXT, and NS records in one go. Get comprehensive DNS information for your domains with a single lookup.
Bulk Processing
Check up to 20 domains at once. Upload CSV files or paste domain lists for efficient batch processing.
Export Options
Download results in CSV format, copy to clipboard, or export as JSON for API integration. Perfect for documentation and analysis.
Real-time Results
Get instant DNS lookup results using reliable DNS resolvers. View results in a clear, tabulated format with filtering options.
How to Use
Enter domains (one per line) or upload a CSV file
mydomain.net
test-site.org
Select the DNS record types to look up
✓ MX Records (Mail servers)
✓ TXT Records (SPF, DKIM, etc.)
✓ NS Records (Nameservers)
Click "Start Lookup" to process domains
Free users can check up to 20 domains per request
View results and export as needed
Results are organized by record type in separate tabs
Understanding DNS Records
A Records
A records map domain names to IPv4 addresses. They're essential for website hosting and server identification.
MX Records
MX (Mail Exchange) records specify email servers for a domain. They include priority values for server preference.
TXT Records
TXT records hold text information, commonly used for SPF (Sender Policy Framework) and DKIM (DomainKeys).
NS Records
NS (Nameserver) records specify authoritative DNS servers for the domain.
Common Use Cases
Email Setup
- Verify MX records
- Check SPF records
- Validate DKIM setup
- DMARC configuration
- Mail server priority
DNS Management
- IP address verification
- Nameserver changes
- DNS propagation
- Record validation
- Configuration audit
Security
- SPF policy check
- DMARC verification
- Security records
- CAA records
- DNS security audit
Best Practices
DNS Configuration
- Use multiple nameservers for redundancy
- Set appropriate TTL values
- Implement SPF records correctly
- Regular DNS audits
- Document DNS changes
Email Security
- Implement SPF restrictions
- Set up DKIM signing
- Configure DMARC policy
- Monitor mail server health
- Regular security checks
Frequently Asked Questions
How many domains can I check at once?
Free users can check up to 20 domains per request. This limit helps ensure fair usage and maintains service quality. For larger batches, consider breaking them into multiple requests or using our API.
How long do DNS lookups take?
DNS lookups are typically very fast, taking just a few seconds per domain. However, the total time depends on the number of domains and record types being checked. Results are displayed as they become available.
Are the DNS results accurate?
Yes, we query authoritative DNS servers and use multiple reliable DNS resolvers to ensure accurate results. However, due to DNS propagation and caching, recent changes might take time to appear.
What DNS resolvers do you use?
We use a combination of reliable DNS resolvers including Google DNS (8.8.8.8) and Cloudflare (1.1.1.1) to ensure accurate and fast results. This also helps verify DNS propagation across different providers.