Network Toolkit

Browser-safe tools for identifying your public network, measuring HTTP latency and preparing common diagnostics.

Show public IP, location and ISP from a free geolocation API.

延

Estimate latency with repeat HTTP requests from this browser.

端

Browser pages cannot scan TCP ports directly; use this as a safe checklist for server-side probes.

盾

Verify VPN/proxy state by comparing IP, country and ASN before and after connecting.

Use latency, speed variance and channel hygiene steps to diagnose wireless issues.

DNS

Pick public DNS resolvers and configure encrypted DNS where available.

Your IP result

Click IP Lookup to query ipapi.co from your browser.