Free Online SOA Record Lookup
SOA Record is a comprehensive DNS tool that retrieves and analyzes Start of Authority records for any domain. In one workspace, you get access to five professional-grade tools: a standard SOA record lookup with human-readable time conversions, a configuration analyzer that scores your setup out of 100, a side-by-side comparison tool, a bulk processor for large domain lists, and a serial consistency checker that verifies propagation across all nameservers. Just enter a domain or upload your file to see results in seconds.
SOA Lookup
Queries SOA records for any domain, showing primary NS, admin email, serial, refresh, retry, expire, and minimum TTL.
SOA Analyzer
Audits SOA timing values and serial format against best practices with a score out of 100.
SOA Compare
Compares SOA configurations between two domains, highlighting differences in timing and nameserver settings.
Bulk Lookup
Processes domain lists from text or uploaded files with live progress and CSV export.
Serial Check
Verifies SOA serial consistency across all authoritative nameservers to confirm zone transfer propagation.
Online SOA Record Tool for DNS Configuration Auditing
Understanding your SOA record details is essential when troubleshooting DNS issues, planning a migration, or auditing domain configurations. Each SOA lookup pulls results directly from Cloudflare DNS, showing the primary nameserver, administrator email, zone serial number, and all four timing intervals with both raw seconds and human-readable conversions. You can copy your results to the clipboard with one click or download them as a CSV file for your records.
Human-Readable Time Conversions
Raw SOA values like 86400 or 604800 can be hard to interpret at a glance. Each timing field shows the readable equivalent right next to the raw number, so you'll know at a glance whether your refresh is set to 1 hour or 24 hours. This instant translation saves you time during audits and eliminates the need for manual calculations.
Configuration Scoring with Best Practice Checks
The SOA Analyzer evaluates five key parts of your configuration: refresh interval, retry interval, expire time, minimum TTL, and serial number format. Your configuration earns up to 20 points per check based on how closely your values match standard RFC recommendations. A score of 80 or higher indicates a solid configuration, while anything below 50 highlights areas that need more attention.
Compare SOA Records and Verify Serial Propagation
Reliable DNS operation depends on consistent SOA data across all authoritative nameservers. With the SOA Compare tool, you can put two domain configurations side by side to spot any differences instantly. Fields with mismatched values are highlighted in yellow, making it simple to see where configurations diverge. This is particularly useful during domain migrations when you need to verify that timing values and nameserver assignments match between providers.
Serial Consistency Across Nameservers
The Serial Check tool looks up the SOA record from each of a domain's nameservers individually and compares their serial numbers. Matching serials confirm that zone transfers are working correctly. If any nameserver shows a mismatched serial, the tool flags it right away so you can investigate potential propagation delays or firewall issues.
Bulk SOA Lookups with File Upload
Processing large domain portfolios is straightforward with the Bulk Lookup tool. Just paste your domain list or upload a text file to check SOA records for every entry. A live progress bar tracks each query as it completes, and the results table shows domain status, primary nameserver, serial number, and refresh interval. You can then export everything to CSV for reporting or further analysis.
Free SOA Record Lookup for IT Professionals and DNS Administrators
Whether you manage a single domain or an entire portfolio, every lookup tool you need is available in this workspace. DNS administrators can use the analyzer to validate configurations before going live, while IT teams can run bulk checks to audit SOA settings across hundreds of domains. All queries travel securely through a lightweight proxy directly to Cloudflare DNS, and your domain data is never logged or stored beyond your active browser session.
No Signup, No Limits
You can access every subtool immediately without having to create an account or sign in. Run as many lookups, analyses, and comparisons as you need without any rate limits or usage caps. Your queries stay private and are never stored beyond your active session.
Lightweight DNS Proxy for Fast Responses
All of your DNS queries travel through a lightweight server-side proxy to Cloudflare DNS-over-HTTPS, which guarantees fast and reliable responses no matter where you are in the world. The proxy adds very little overhead, and results typically arrive in under 200 milliseconds for most domains.
Related DNS and Network Tools
If you work with DNS and network infrastructure regularly, these tools complement what you can do here:
- SOA Record Analyzer -- audit SOA timing values and serial format with a score out of 100
- SOA Record Compare -- compare SOA configurations between two domains side by side
- SOA Serial Check -- verify serial consistency across all authoritative nameservers
- Bulk SOA Lookup -- process domain lists with file upload and CSV export
- Nameserver Lookup -- query NS records, check health, and compare nameserver configurations
- WHOIS Lookup -- check domain registration details, expiry dates, and registrar info