See your network the way the internet sees it.
DNS, HTTP, SSL, WHOIS, ports, and more — checked server-side from outside your network, so you see what's actually reachable, not just what your local network happens to see.
No accounts. No history.
Run a check, get the answer, move on. No dashboards. No saved lookup history.
Outside-in diagnostics
Every check runs from a NetSH server, not your browser — giving you a clean external vantage point.
Fast, live results
Checks run in parallel where possible, with results streaming back as they complete.
One toolbox
DNS, email, HTTP, SSL, ports, IP, and website health — without bouncing between a dozen different tools.
Every diagnostic you'd reach for
The most-used tools, front and center. Explore the full toolkit for everything else.
Ping
Round-trip time and packet loss to any host or IP.
Website Health Check
DNS, ping, HTTP, SSL, and ports — one pass, one plain verdict.
DNS Lookup
A, AAAA, MX, TXT, CNAME, NS, and SOA records.
Traceroute
The hop-by-hop path to any host, with latency at each step.
MX Lookup
The mail servers that accept email for a domain, in priority order.
Mail Health Check
Mail delivery and mail spoofing protection are separate systems (MX vs. SPF/DKIM/DMARC), and each one usually gets checked in isolation. This runs all five together against one domain.
Port Checker
Test whether a TCP port is open from the outside.
SSL Certificate Checker
Issuer, expiry, chain of trust, and SAN coverage.