Open Port Check
Global & Local TCP Port Tester
Remote (Cloudflare)
Local (Browser)
âšī¸ Local Mode Heuristic
Checks non-HTTP ports using timing analysis. Fast errors (<300ms) = Closed. Slow errors/Hang = Open.
â ī¸ Browser Blocked Request
You are on HTTPS but checking a local HTTP port. Browsers block this "Mixed Content" by default.
To fix: Click the đ lock icon in the address bar â Site Settings â Allow "Insecure Content".