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Security · Network monitoring

Is anything tampering with my network?

A local-only dashboard that answers the questions a small office or household rarely gets answered: what's connected, what's exposed to the internet, is anything tampering with DNS or HTTPS, is the privacy tooling actually on, and what changed since yesterday.

Type
Local web dashboard + native macOS helpers
Status
In use; consolidation in progress
Stack
Python, vanilla JavaScript with canvas maps, Swift CoreWLAN and CoreBluetooth helpers
Privacy
Runs entirely on the local machine. No screenshots here, because it shows a real network.

DNS integrity

It cross-checks the system resolver against Cloudflare, Quad9 and Google over encrypted DNS and flags divergence, hijacked lookups (using a name that should never resolve), DNSSEC bypass, and plain-text DNS leaking when it should be encrypted.

HTTPS interception watch

It records the certificate issuer and key fingerprints for a watchlist of major sites and alerts on an unexpected certificate authority, a shortened chain or an issuer change, the signature of something intercepting encrypted traffic, with a grace period for legitimate rotation.

One privacy score

A single card grades whether DNS is encrypted, a VPN is up and the resolver is external, weighted into green, amber or red. Alongside it: a device inventory, router port-mapping exposure, malware-scan status and a 24-hour change digest.

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