Internet & Network

Port Checker

Check whether a given host and port appear reachable from the browser environment.

Browser-first and privacy-conscious

Port Checker

How it works

siteIndex processes input directly in your browser whenever possible, which keeps the tool fast and keeps your data private.

For URL requests, the app validates the address and only allows public HTTP/HTTPS targets before running the check.

Common uses

FAQ

• Is the data stored? No, browser-first tools do not store your content.
• What happens with URLs? They are validated before analysis.
• Can I use it on mobile? Yes, the interfaces are responsive and touch-friendly.

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