はてなブックマーク

Find exactly where your connection breaks. Network Doctor is a cross-platform network troubleshooting TUI that turns interface, DNS, TCP, TLS, HTTP, proxy, and path-MTU checks into one plain-English diagnosis. Instead of handing you a wall of ping, dig, and curl output, Network Doctor answers the useful question: is the problem on my network, along the path, or at the service? Pinpoints the failed