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DNS.mitm Checker
by Taylor Rodriguez
|
| Version | 0.4.2 |
| Zip size | 66 KiB |
| License | BSD v3 |
| Updated | 02/06/2026 |
| Downloads | 790 |
| MD5 | da70f7072d770571d45565145c4c0da0 |
App Details
A Homebrew application that checks if Atmosphere's DNS.mitm configuration is working correctly.
- Minimal and fast.
- Checks if telemetry, connection tests, and firmware updates are blocked.
- Recognizes custom DNS redirection.
I initially developed this software because Switch 90DNS Tester hadn't been updated in a long time. Now it's kind of its own thing. I think the primary use-case for this software is to ensure firmware updates are blocked, as future Atmosphere updates aren't as guaranteed without SciresM.
Changelog
v0.4.2
- Optimized terminal clearing on retry.
v0.4.1
- Added ability to attempt domain resolution without an internet connection.
- Added developer contact.
- Optimized application size.
v0.4.0
- Revamped the user interface to be easier to read.
- Added additional runtime and compile-time verification.
- Reduced setsys service lifetime.
- Optimized application size.
v0.3.2
- Added several minor performance improvements.
- Improved stability with additional compile-time checks.
- Fixed instance of undefined behaviour (introduced in v0.1.0).
v0.3.1
- Added support for detecting BrowseDNS and Nintendo Homebrew IP addresses.
- Optimized resolution of unblocked domain names.
- Improved stability with additional compile-time checks.
- Improved console responsiveness (regressed in v0.3.0).
v0.3.0
- Added check to ensure DNS.mitm is actually enabled.
- Removed superfluous domain name checks.
- This focuses on domains actually used on the Nintendo Switch and avoids validating speculative blocking practices (security theatre).
- Fixed error display bug (introduced in v0.2.0).
