ZNow AI

TCPTest - Global Network Testing Platform

TCPTest is a comprehensive online network testing platform providing Ping, TCPing, HTTP speed test, traceroute, DNS lookup, and more. With 300+ global test nodes and IPv4/IPv6 dual-stack support, it helps network administrators and developers quickly diagnose network issues and assess connection quality.

Use Cases

  • Website performance testing - Test your website response speed and availability from global nodes
  • Network fault diagnosis - Use Ping and traceroute to locate network interruptions or latency nodes
  • CDN effectiveness verification - Test CDN acceleration from different geographic locations
  • DNS resolution checking - Verify domain name resolution and detect DNS poisoning or hijacking

Core Features

300+ Global Test Nodes

Test nodes covering major continents worldwide, enabling network tests from different geographic locations for comprehensive quality assessment.

Ping / TCPing / HTTP Speed Test

Supports ICMP Ping, TCPing, and HTTP speed testing for different network diagnostic scenarios.

Traceroute and MTR

Visualises every hop of the data packet route, helping locate network bottlenecks and fault nodes.

IPv4/IPv6 Dual-Stack

Simultaneously supports IPv4 and IPv6 address testing for verifying dual-stack network environments.

How to Use

  1. 1

    Select Test Type

    Visit tcptest.znow-ai.com and select your test type: Ping, TCPing, HTTP speed test, or traceroute.

  2. 2

    Enter Target

    Enter the target IP address or domain name in the input box.

  3. 3

    Select Test Nodes

    Choose one or more global test nodes to run the test.

  4. 4

    View Results

    Wait for the test to complete and view detailed latency, packet loss, and routing data.

Pros

  • + Completely free, no registration required
  • + 300+ global test nodes with wide coverage
  • + Supports multiple test protocols
  • + IPv4/IPv6 dual-stack support
  • + Results displayed visually

Cons

  • - Free tier may have test frequency limits
  • - Some advanced features require login
  • - No historical data comparison

Alternatives

Ping.pe

Free global Ping testing tool supporting simultaneous Ping from 50+ locations.

Speedtest by Ookla

The most well-known internet speed testing tool, primarily testing your network bandwidth and latency.

traceroute.org

Traditional traceroute tool providing traceroute services from multiple global nodes.

FAQ

What unit is the latency in the test results?

Latency is measured in milliseconds (ms). Generally, Ping latency below 50ms indicates excellent network quality, 50-100ms is good, and over 200ms may affect real-time application performance.

Why are test results different across nodes?

Different geographic locations have different physical distances to the target server and different intermediate network nodes, so latency and routing paths will differ significantly. This is exactly the value of multi-node testing.

What types of addresses can be tested?

Supports IPv4 addresses (e.g., 8.8.8.8), IPv6 addresses (e.g., 2001:4860:4860::8888), and domain names (e.g., example.com).

Visit Tool