免费工具
Network troubleshooting tools
Ping, traceroute, open ports, website and SSL checks, DNS propagation and WHOIS – live tests run from our server in Australia.
Ping Test
Ping any website or public IP from our server: reply times, packet loss, jitter and TTL for each packet – check whether a host is up and how healthy the path is.
打开工具 Network troubleshootingTraceroute (MTR)
See every router between our server and a destination, with packet loss and latency per hop (MTR report) – find where a connection slows down or breaks.
打开工具 Network troubleshootingOpen Port Checker
Check from the internet whether ports are open, closed or filtered on a server or router – port forwarding, firewalls, mail, RDP, SSH and VPN in one test.
打开工具 Network troubleshootingWebsite Down? HTTP Status & Speed Checker
Is a website down for everyone or just you? See the HTTP status, every redirect, DNS/connect/TLS/first-byte timings and the security and caching headers.
打开工具 Network troubleshootingSSL Certificate Checker
Check a site’s HTTPS certificate: is it trusted, does it match the name, when does it expire, who issued it, and which TLS version and cipher the server uses.
打开工具 Network troubleshootingWhat Is My IP Address?
Your public IP address, whether it’s IPv4 or IPv6, its reverse DNS name and your browser’s network details – everything support asks for, ready to copy.
打开工具 Network troubleshootingDNS Propagation Checker
Has your DNS change reached the world yet? Compare the answer from the domain’s own nameservers with Google, Cloudflare, Quad9, OpenDNS and other public resolvers.
打开工具 Network troubleshootingWHOIS & Domain Expiry Lookup
Who is the registrar, when was the domain registered, when does it expire, which nameservers does it use and is it locked? Full WHOIS record included.
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