Network tools that get straight to the point.
NetCheck brings together the essential tools to check and troubleshoot a site or a domain: DNS lookup, propagation, WHOIS, SSL certificate, HTTP headers, IP address… all free, fast and without sign-up.
Most existing network tools are slow, dated or drowning in ads. NetCheck offers a modern, instant experience, designed for webmasters and curious minds alike.
NetCheck is free, funded by unobtrusive advertising. That covers the server costs and lets us build new tools, without ever degrading the experience.
A suggestion, a bug to report, a question? Write to us — we read every message.