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Ubify Core Engineering Team
SOFTWARE ENGINEERS & SYSTEMS ARCHITECTS
About This Tool
Diagnosing website responsiveness, server reachability, and network delays starts with measuring round-trip communication latency. Because modern web browsers run inside a sandboxed environment that prohibits raw ICMP echo packets, this tool conducts an HTTP connection handshake test directly from your browser.
When you test a domain or web address, the tool initiates a client-side fetch request using no-cors mode and cache suppression. It measures the elapsed round-trip time in milliseconds from initial socket handshake to header reception, reporting live latency and host reachability. For example, testing google.com verifies domain resolution, network routing, and server connection timing without requiring terminal access or third-party diagnostic software.
How to Use
- 1
Enter the domain name or web address you want to evaluate (e.g. google.com).
- 2
Click "Test Latency" to trigger an in-browser HTTP handshake request.
- 3
View the recorded round-trip latency measured in milliseconds.
- 4
Check host reachability status and verify network connectivity.
Frequently Asked Questions
How does this in-browser ping test measure latency without ICMP?
Web security standards prevent browsers from transmitting raw ICMP ping packets. This tool measures latency by timing an actual HTTP/HTTPS connection handshake to the target host via client-side fetch API.
Why might a host return "Unreachable / CORS Restricted"?
Some web servers block cross-origin browser probes or do not respond to anonymous fetch requests, indicating the host is blocking client requests or the address is invalid.
Does this test route through an intermediary proxy server?
No. The connection attempt originates directly from your device and browser, providing an accurate reflection of your personal connection to the target server.