NetSweep

NetSweep is a personal watchtower for the websites you actually care about. Pin a site and NetSweep inspects its TLS certificate chain, OCSP revocation status, DNS records, HTTP → HTTPS redirect, security headers, HSTS preload eligibility, Certificate Transparency logs, and matching public CVEs one polished report per host.

It keeps watch in the background and sends a local notification 30, 14, 7, and 1 day before a certificate expires, so you're never caught off guard. Open the app and only what changed is surfaced: renewed certs, new CVE matches, fingerprint changes that could signal a hijack.

Everything runs on your device. No accounts, no ads, no trackers. The only network requests are the ones a browser would make to the hosts you pinned, plus a public IP lookup, a connection-speed estimate, and CVE search.

FEATURES • Deep per-host security inspection • Background cert-expiry alerts (local only) • Live spatial map of your trust surface • Connection quality testing • Tags + health dashboard • Portable JSON watchlist export • Private by design