LAN Speed Test is a lightweight, dedicated software utility developed by Totusoft designed to measure data transfer speeds across your local area network (LAN), including both wired (Ethernet) and wireless (Wi-Fi) connections. Unlike standard internet speed tests like Ookla Speedtest or Cloudflare Speed Test, which measure your connection to an outside Internet Service Provider (ISP), LAN Speed Test strictly analyzes the performance between devices inside your home or office network. How the Software Works
The software evaluates your internal network throughput using a simple but clever mechanism:
Memory Generation: The program builds a dummy data file directly inside your computer’s RAM.
File Transfer: It writes this file to a target destination (like a shared folder on another PC or a NAS drive) and then reads it back.
Cache Bypass: By generating the file in memory, it strips away the inflating effects of Windows or Mac file caching, ensuring you get an accurate metric of pure transfer speeds.
Calculations: It clocks the precise time the transfer takes and prints the results out in Megabits per second (Mbps) or Megabytes per second (MBps). Core Versions & Features
LAN Speed Test (Lite): This is a free, fully functional version with no expiration timers. It allows you to choose any shared folder network path to run a standard up-and-down speed check.
LAN Speed Test (Commercial/Paid): The premium version unlocks advanced troubleshooting metrics. It allows for larger test file sizes, simultaneous multi-device testing, and logs history.
LAN Speed Test Server: An optional, premium companion application. Instead of transferring a file to a target hard drive (which can bottleneck results due to slow drive write speeds), you test directly from one computer’s RAM to another computer’s RAM, isolating the physical network equipment completely. Why You Would Use It
Testing your local network speed helps troubleshoot common home and business network headaches: LAN Speed Test – Totusoft
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