LAN vs Internet Speed
Your local network speed is usually much faster than your internet speed. Modern routers support 1Gbps wired and 300-1200Mbps wireless. Your internet speed is whatever you pay your ISP for. Testing both helps identify where the bottleneck is. If your LAN is slow, upgrade your router or use Ethernet. If your internet is slow, check with your ISP.
How Network Speed Tests Work
Speed tests work by downloading and uploading files of known size to a nearby server. The time taken to transfer the file calculates your speed in Mbps. Multiple tests give more accurate results because network conditions fluctuate. Test at different times of day.
Improving Network Speed
Replace old routers. Use Cat5e or Cat6 Ethernet cables. Position your router centrally. Reduce interference from other electronics. Update router firmware. Use a wired connection for devices that need consistent speed like gaming consoles and desktop PCs.