Network Latency Checker
Check Connection Latency to Any Public Host
Need to use Network Latency Checker right now?
Latency spikes and packet loss both show up clearly across four repeated connection attempts, which is exactly what this checker runs on every test.
Measures TCP connect latency to the chosen port — a browser-safe stand-in for ICMP ping, which isn't reachable from a normal web server.
Features
- Privacy-first processing with automatic deletion
- Real-time, instant results
- 100% free, no sign-up required
- Works on desktop, tablet, and mobile
- No installation needed
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About Network Latency Checker
A ping test measures how quickly your connection can reach a remote server — useful for diagnosing a slow website, checking whether a game server is responsive, or confirming a host is even reachable before digging into a bigger problem.
Traditional ping uses the ICMP protocol, which most web browsers and standard servers can't send directly — ICMP requires low-level network privileges that a normal web application doesn't have. This tool works around that by measuring TCP connection latency instead: how long it takes to open a real TCP connection to the host on a chosen port (443 for HTTPS by default). This is a well-established, browser-safe stand-in for ICMP ping, and for most practical purposes — 'is this host responsive, and how fast?' — it answers the same question.
Each test runs four connection attempts and reports the minimum, average, and maximum latency, along with any packet loss (failed connection attempts). Consistent low latency with zero loss indicates a healthy, responsive connection; high or wildly varying latency points to network congestion or an overloaded server; a high loss percentage suggests the host is unreachable or actively blocking connections on that port.
This is useful for diagnosing slow-loading websites, checking whether a server or API endpoint is currently reachable, comparing latency across different hosts before choosing infrastructure, and quick network troubleshooting when something feels slow but you're not sure why.
How it works
- Enter a hostname. Any domain name or public server address.
- Choose a port. 443 (HTTPS) works for most websites; pick another for specific services.
- Click Ping. Four connection attempts run, reporting latency and any packet loss.
Examples
Checking latency to a website
Input
Host: example.com, Port: 443
Output
Min: 12ms, Avg: 15ms, Max: 19ms, Loss: 0%