About netsh.io

netsh.io is a set of network diagnostic tools — ping, DNS lookup, SSL checker, WHOIS lookup, port checker, and HTTP header analyzer. Every check runs server-side, not in your browser, so results reflect what the wider internet sees rather than your local network or firewall.

There are no accounts and no saved lookup history. Requests to private networks, localhost, and cloud metadata endpoints are blocked before any outbound check runs.

The site is supported by advertising, shown only after a cookie choice — see the cookie policy. There is no paywall on the tools themselves.

Bugs, feedback, or abuse reports: see the contact page.