Switch 90DNS tester for Nintendo Switch

Check DNS resolution for Nintendo service domains and review the results of your current network configuration.

A homebrew-capable Switch and an active network connection. Results concern DNS reachability only and do not guarantee protection from bans. Store build is 1.0.4; upstream also has a newer 1.1.0 release.

These links preserve the verified version above. Check the linked release and your actual CFW/system version before installation.

1. Install the pinned testerPut Switch_90DNS_tester.nro in /switch/Switch_90DNS_Tester/. This download preserves store version 1.0.4; upstream 1.1.0 remains a separate release.
2. Choose the network to inspectConnect through the intended network profile. Set DNS or Atmosphère DNS MITM separately using its own instructions.
3. Read the resolution resultsOpen the tester through hbmenu and review the tested Nintendo service domains. This diagnostic does not install DNS settings.
4. Retest after network changesChanging profiles or DNS configuration can change the result. Passing a domain test does not guarantee protection against bans.

sd:/switch/Switch_90DNS_Tester/Switch_90DNS_tester.nro

Check the active network profile, connectivity and DNS MITM setup for unexpected results. The result concerns the domains tested at that moment, rather than every possible console service.

• Official project & documentation
• Upstream 1.1.0 notes · download here remains 1.0.4
• Switch Homebrew App Store entry

Original Switch 90DNS tester icon embedded in its pinned Switch NRO. The original image bytes are retained with their source URL and checksum. Ready console files have matching local backup copies, with version, size and SHA-256 recorded. Original containers and older versions are preserved. No downloaded application was executed and physical-console operation was not tested.