DNS Checker
Perform DNS lookups and view detailed information about domain names.
DNS Lookup
Enter a domain name to perform a DNS lookup.
DNS Records
View and search DNS records.
Using DNS Checker for open banking
Look up public DNS records when diagnosing a bank API hostname or sandbox connection.
Sandbox example and expected result
Look up example.com to see public DNS answers, then compare your provider’s API hostname with its documentation.
Limitations and troubleshooting
Public DNS results can differ from private networks and cached resolver answers. A successful lookup does not prove API availability.
Where your input is processed
The queried hostname is sent to our server for a public DNS lookup. Use synthetic test data.
Maintained by OpenFinanceTools. Guidance updated 23 October 2026. Testing and editorial approach