About NetworkTests.com
Free, browser-based network diagnostics — beyond a basic speed test.
What is NetworkTests.com
NetworkTests.com is a free, browser-based network diagnostics platform designed for anyone who wants deeper insight into their internet connection — beyond a basic speed test.
At its core is a network quality test that measures packet loss, latency, jitter, and hop-by-hop path behavior using UDP over WebRTC, revealing real network conditions that TCP-based speed tests often hide.
The platform also includes a suite of diagnostic tools — IP lookup, DNS lookup, DNS trace, AS lookup, reverse DNS, ping, traceroute, MTR, MAC address lookup, SSL proxy inspection, VPN detection, and DNS leak testing — helping users analyze connectivity, verify privacy configurations, and troubleshoot network issues.
Why This Tool Exists
Most traditional speed tests focus primarily on TCP throughput. While useful, TCP automatically retransmits lost packets, which can mask underlying network problems such as packet loss, instability, and inconsistent latency.
As a result, a connection may appear fast even when real-time applications like video calls, gaming, or voice services are experiencing performance issues.
Traditional Speed Tests
TCPResult: 100% delivered
"Everything looks fine!"
NetworkTests.com
UDP via WebRTCResult: 3/5 received — 40% loss detected
"Real problem detected"
NetworkTests.com addresses this gap by using WebRTC-based testing to perform UDP-style measurements directly from the browser. This approach provides more accurate visibility into real network conditions — the same conditions your applications actually experience.
Unique Hop-by-Hop Path Diagnostics
NetworkTests.com provides advanced hop-by-hop packet loss and latency analysis from our servers to your connection by securely traversing NAT using WebRTC and STUN-assisted UDP probing. This approach allows us to evaluate network performance along the path toward your internet edge, offering visibility that is typically difficult to achieve from a browser-based environment.
To our knowledge, few publicly available tools offer this type of inbound, hop-level diagnostics using NAT-traversed UDP measurements.
What We Measure
Packet Loss
Detect packets that never arrive — the primary cause of video, voice, and gaming quality issues that TCP speed tests hide.
Latency
Measure round-trip time to see how fast your network responds. See average, median (p50), and tail latency (p95) for a complete picture.
Jitter
Track variation in latency over time — the hidden cause of choppy video calls, audio dropouts, and inconsistent streaming.
Network Stability
Measure UDP throughput consistency and connection reliability over time. Stability matters more than peak speed.
Hop-by-Hop Analysis
Trace packet loss, latency, and jitter at every router between you and the server. Pinpoint exactly where issues occur on the network path.
Diagnostic Tools
My IP
View your public IP address, geolocation, ISP, and ASN.
DNS Lookup
Query DNS records (A, AAAA, MX, TXT, CNAME, NS) for any domain.
DNS Trace
Trace a DNS query step by step from root nameservers to the authoritative answer.
AS Lookup
Identify the autonomous system and organization that owns any IP or ASN.
Reverse DNS
Resolve an IP address back to its hostname via PTR records.
Ping
Measure round-trip latency to any host using ICMP.
Traceroute
Map the network path to a destination hop by hop.
MTR
Continuous hop-by-hop analysis combining ping and traceroute.
MAC Lookup
Identify the manufacturer of any device by its MAC address OUI.
SSL Proxy Check
Detect whether a TLS intercepting proxy is inspecting your HTTPS traffic.
VPN Check
Determine whether your connection is routed through a VPN.
DNS Leak Test
Verify that DNS queries are not bypassing your VPN tunnel.
Who It's For
Home Users
Understand why video calls drop, games lag, or streaming buffers — even when your speed test says everything is fine.
Network Engineers
Get UDP-based metrics, hop-by-hop MTR analysis, and real packet loss data for professional network troubleshooting.
IT Teams
Diagnose connectivity issues across office networks, validate ISP performance, and pinpoint bottlenecks with data.
Privacy & Security
Check whether your connection is being routed through a VPN or intercepted by an SSL proxy. Useful for verifying your privacy setup or identifying corporate network inspection.
Ready to see what's really happening on your network?
Feedback
Have a bug to report, a feature idea, or general thoughts? We'd love to hear from you. You can also reach us directly at [email protected].